diff --git a/routes/admin.py b/routes/admin.py
index e8a9e77..612ee89 100644
--- a/routes/admin.py
+++ b/routes/admin.py
@@ -13,6 +13,7 @@ from flask import Blueprint, request, jsonify, send_from_directory
 
 import settings
 from config import Config
+from utils.request_history import request_history
 
 logger = logging.getLogger(__name__)
 
@@ -202,6 +203,15 @@ def get_stats():
     return jsonify(usage_tracker.get_stats())
 
 
+@bp.route('/api/admin/request-logs', methods=['GET'])
+def get_request_logs():
+    """返回最近 500 条请求日志。"""
+    err = _check_auth()
+    if err:
+        return err
+    return jsonify({'items': request_history.get_recent(500)})
+
+
 # ─── 内部辅助 ─────────────────────────────────────
 
 
diff --git a/routes/chat.py b/routes/chat.py
index 66e1e67..9532ed0 100644
--- a/routes/chat.py
+++ b/routes/chat.py
@@ -9,6 +9,7 @@ from __future__ import annotations
 
 import json
 import logging
+from time import perf_counter
 from typing import Any
 
 import settings
@@ -59,6 +60,7 @@ from utils.http import (
     iter_responses_sse,
     sse_response,
 )
+from utils.request_history import request_history
 from utils.request_logger import (
     append_client_event,
     append_upstream_event,
@@ -113,6 +115,7 @@ def chat_completions():
     client_model = payload.get('model', 'unknown')
     is_stream = payload.get('stream', False)
     ctx = build_route_context(client_model, is_stream)
+    request_started_at = perf_counter()
     turn = start_turn(
         route='chat',
         client_model=client_model,
@@ -132,12 +135,12 @@ def chat_completions():
         payload['messages'] = thinking_cache.inject(payload.get('messages', []))
 
     if ctx.backend == 'openai':
-        return _handle_openai_backend(ctx, payload, turn)
+        return _handle_openai_backend(ctx, payload, turn, request_started_at)
     if ctx.backend == 'responses':
-        return _handle_responses_backend(ctx, payload, turn)
+        return _handle_responses_backend(ctx, payload, turn, request_started_at)
     if ctx.backend == 'gemini':
-        return _handle_gemini_backend(ctx, payload, turn)
-    return _handle_anthropic_backend(ctx, payload, turn)
+        return _handle_gemini_backend(ctx, payload, turn, request_started_at)
+    return _handle_anthropic_backend(ctx, payload, turn, request_started_at)
 
 
 def _normalize_chat_payload(payload: dict[str, Any]) -> tuple[dict[str, Any], int]:
@@ -158,7 +161,12 @@ def _normalize_chat_payload(payload: dict[str, Any]) -> tuple[dict[str, Any], in
     return payload, message_count
 
 
-def _handle_openai_backend(ctx: RouteContext, payload: dict[str, Any], turn: dict[str, Any]):
+def _handle_openai_backend(
+    ctx: RouteContext,
+    payload: dict[str, Any],
+    turn: dict[str, Any],
+    request_started_at: float,
+):
     """处理走 OpenAI 兼容后端的聊天补全请求。"""
     _dbg(
         '原始请求字段=' + str(list(payload.keys())) + ' '
@@ -182,8 +190,8 @@ def _handle_openai_backend(ctx: RouteContext, payload: dict[str, Any], turn: dic
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_openai_stream(ctx, payload, url, headers, turn)
-    return _handle_openai_non_stream(ctx, payload, url, headers, turn)
+        return _handle_openai_stream(ctx, payload, url, headers, turn, request_started_at)
+    return _handle_openai_non_stream(ctx, payload, url, headers, turn, request_started_at)
 
 
 def _handle_openai_non_stream(
@@ -192,6 +200,7 @@ def _handle_openai_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any],
+    request_started_at: float,
 ):
     """处理 OpenAI 兼容后端的非流式返回。"""
     payload['stream'] = False
@@ -207,7 +216,14 @@ def _handle_openai_non_stream(
     _dbg('上游原始响应=' + json.dumps(raw, ensure_ascii=False, default=str)[:1000])
 
     data = fix_response(raw)
-    return _finalize_chat_response(ctx, data, turn=turn, debug_label='修复后响应')
+    return _finalize_chat_response(
+        ctx,
+        data,
+        turn=turn,
+        debug_label='修复后响应',
+        request_started_at=request_started_at,
+        upstream_url=url,
+    )
 
 
 def _handle_openai_stream(
@@ -216,6 +232,7 @@ def _handle_openai_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any],
+    request_started_at: float,
 ):
     """处理 OpenAI 兼容后端的流式返回。"""
     payload['stream'] = True
@@ -258,7 +275,18 @@ def _handle_openai_stream(
                     'chunk_count': len(client_chunks),
                     'usage': last_usage,
                 })
-                finalize_turn(turn, usage=last_usage)
+                duration_ms = int((perf_counter() - request_started_at) * 1000)
+                request_history.record(
+                    route='chat',
+                    client_model=ctx.client_model,
+                    actual_model=ctx.upstream_model,
+                    backend=ctx.backend,
+                    upstream_url=url,
+                    usage=last_usage,
+                    duration_ms=duration_ms,
+                    started_at=(turn or {}).get('started_at'),
+                )
+                finalize_turn(turn, usage=last_usage, duration_ms=duration_ms)
                 return
 
             append_upstream_event(turn, {'type': 'openai_chunk', 'data': chunk})
@@ -299,12 +327,28 @@ def _handle_openai_stream(
             'chunk_count': len(client_chunks),
             'usage': last_usage,
         })
-        finalize_turn(turn, usage=last_usage)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='chat',
+            client_model=ctx.client_model,
+            actual_model=ctx.upstream_model,
+            backend=ctx.backend,
+            upstream_url=url,
+            usage=last_usage,
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, usage=last_usage, duration_ms=duration_ms)
 
     return sse_response(generate())
 
 
-def _handle_responses_backend(ctx: RouteContext, payload: dict[str, Any], turn: dict[str, Any] | None):
+def _handle_responses_backend(
+    ctx: RouteContext,
+    payload: dict[str, Any],
+    turn: dict[str, Any] | None,
+    request_started_at: float,
+):
     """处理走原生 Responses 后端的聊天补全请求。
 
     当上游只支持 `/v1/responses` 时，需要先把聊天补全请求转换为 Responses 请求，
@@ -324,8 +368,8 @@ def _handle_responses_backend(ctx: RouteContext, payload: dict[str, Any], turn:
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_responses_stream(ctx, responses_payload, url, headers, turn)
-    return _handle_responses_non_stream(ctx, responses_payload, url, headers, turn)
+        return _handle_responses_stream(ctx, responses_payload, url, headers, turn, request_started_at)
+    return _handle_responses_non_stream(ctx, responses_payload, url, headers, turn, request_started_at)
 
 
 def _handle_responses_non_stream(
@@ -334,6 +378,7 @@ def _handle_responses_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理原生 Responses 后端的非流式返回。"""
     payload['stream'] = False
@@ -349,7 +394,14 @@ def _handle_responses_non_stream(
     _dbg('上游原始响应=' + json.dumps(raw, ensure_ascii=False, default=str)[:1000])
 
     data = responses_to_cc_response(raw, ctx.client_model)
-    return _finalize_chat_response(ctx, data, turn=turn, debug_label='Responses 转回聊天补全后')
+    return _finalize_chat_response(
+        ctx,
+        data,
+        turn=turn,
+        debug_label='Responses 转回聊天补全后',
+        request_started_at=request_started_at,
+        upstream_url=url,
+    )
 
 
 def _handle_responses_stream(
@@ -358,6 +410,7 @@ def _handle_responses_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理原生 Responses 后端的流式返回。"""
     payload['stream'] = True
@@ -421,12 +474,28 @@ def _handle_responses_stream(
             'chunk_count': len(client_chunks),
             'usage': last_usage,
         })
-        finalize_turn(turn, usage=last_usage)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='chat',
+            client_model=ctx.client_model,
+            actual_model=ctx.upstream_model,
+            backend=ctx.backend,
+            upstream_url=url,
+            usage=last_usage,
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, usage=last_usage, duration_ms=duration_ms)
 
     return sse_response(generate())
 
 
-def _handle_gemini_backend(ctx: RouteContext, payload: dict[str, Any], turn: dict[str, Any] | None):
+def _handle_gemini_backend(
+    ctx: RouteContext,
+    payload: dict[str, Any],
+    turn: dict[str, Any] | None,
+    request_started_at: float,
+):
     """处理走 Gemini Contents 后端的聊天补全请求。"""
     payload = inject_instructions_cc(payload, ctx.custom_instructions, ctx.instructions_position)
     gemini_payload = cc_to_gemini_request(payload)
@@ -440,8 +509,8 @@ def _handle_gemini_backend(ctx: RouteContext, payload: dict[str, Any], turn: dic
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_gemini_stream(ctx, gemini_payload, url, headers, turn)
-    return _handle_gemini_non_stream(ctx, gemini_payload, url, headers, turn)
+        return _handle_gemini_stream(ctx, gemini_payload, url, headers, turn, request_started_at)
+    return _handle_gemini_non_stream(ctx, gemini_payload, url, headers, turn, request_started_at)
 
 
 def _handle_gemini_non_stream(
@@ -450,6 +519,7 @@ def _handle_gemini_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Gemini 后端的非流式返回。"""
     attach_upstream_request(turn, payload, headers)
@@ -464,7 +534,14 @@ def _handle_gemini_non_stream(
     _dbg('上游原始响应=' + json.dumps(raw, ensure_ascii=False, default=str)[:1000])
 
     data = gemini_to_cc_response(raw)
-    return _finalize_chat_response(ctx, data, turn=turn, debug_label='Gemini 转回聊天补全后')
+    return _finalize_chat_response(
+        ctx,
+        data,
+        turn=turn,
+        debug_label='Gemini 转回聊天补全后',
+        request_started_at=request_started_at,
+        upstream_url=url,
+    )
 
 
 def _handle_gemini_stream(
@@ -473,6 +550,7 @@ def _handle_gemini_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Gemini 后端的流式返回。"""
     converter = GeminiStreamConverter()
@@ -535,12 +613,28 @@ def _handle_gemini_stream(
             'chunk_count': len(client_chunks),
             'usage': last_usage,
         })
-        finalize_turn(turn, usage=last_usage)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='chat',
+            client_model=ctx.client_model,
+            actual_model=ctx.upstream_model,
+            backend=ctx.backend,
+            upstream_url=url,
+            usage=last_usage,
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, usage=last_usage, duration_ms=duration_ms)
 
     return sse_response(generate())
 
 
-def _handle_anthropic_backend(ctx: RouteContext, payload: dict[str, Any], turn: dict[str, Any] | None):
+def _handle_anthropic_backend(
+    ctx: RouteContext,
+    payload: dict[str, Any],
+    turn: dict[str, Any] | None,
+    request_started_at: float,
+):
     """处理走 Anthropic Messages 后端的聊天补全请求。"""
     payload['model'] = ctx.upstream_model
     anthropic_payload = cc_to_messages_request(payload)
@@ -555,8 +649,8 @@ def _handle_anthropic_backend(ctx: RouteContext, payload: dict[str, Any], turn:
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_anthropic_stream(ctx, anthropic_payload, url, headers, turn)
-    return _handle_anthropic_non_stream(ctx, anthropic_payload, url, headers, turn)
+        return _handle_anthropic_stream(ctx, anthropic_payload, url, headers, turn, request_started_at)
+    return _handle_anthropic_non_stream(ctx, anthropic_payload, url, headers, turn, request_started_at)
 
 
 def _handle_anthropic_non_stream(
@@ -565,6 +659,7 @@ def _handle_anthropic_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Anthropic 后端的非流式返回。"""
     payload['stream'] = False
@@ -580,7 +675,14 @@ def _handle_anthropic_non_stream(
     _dbg('上游原始响应=' + json.dumps(raw, ensure_ascii=False, default=str)[:1000])
 
     data = messages_to_cc_response(raw)
-    return _finalize_chat_response(ctx, data, turn=turn, debug_label='Messages 转回聊天补全后')
+    return _finalize_chat_response(
+        ctx,
+        data,
+        turn=turn,
+        debug_label='Messages 转回聊天补全后',
+        request_started_at=request_started_at,
+        upstream_url=url,
+    )
 
 
 def _handle_anthropic_stream(
@@ -589,6 +691,7 @@ def _handle_anthropic_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Anthropic 后端的流式返回。
 
@@ -673,7 +776,18 @@ def _handle_anthropic_stream(
             'chunk_count': len(client_chunks),
             'usage': last_usage,
         })
-        finalize_turn(turn, usage=last_usage)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='chat',
+            client_model=ctx.client_model,
+            actual_model=ctx.upstream_model,
+            backend=ctx.backend,
+            upstream_url=url,
+            usage=last_usage,
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, usage=last_usage, duration_ms=duration_ms)
 
     return sse_response(generate())
 
@@ -684,6 +798,8 @@ def _finalize_chat_response(
     *,
     turn: dict[str, Any] | None,
     debug_label: str,
+    request_started_at: float,
+    upstream_url: str,
 ):
     """统一收尾非流式聊天补全响应。
 
@@ -696,9 +812,21 @@ def _finalize_chat_response(
     _dbg(debug_label + '=' + json.dumps(data, ensure_ascii=False, default=str)[:1000])
     log_usage('聊天补全', data.get('usage', {}), input_key='prompt_tokens', output_key='completion_tokens')
 
-    usage_tracker.record(ctx.client_model, data.get('usage'))
+    usage = data.get('usage')
+    duration_ms = int((perf_counter() - request_started_at) * 1000)
+    usage_tracker.record(ctx.client_model, usage)
+    request_history.record(
+        route='chat',
+        client_model=ctx.client_model,
+        actual_model=ctx.upstream_model,
+        backend=ctx.backend,
+        upstream_url=upstream_url,
+        usage=usage,
+        duration_ms=duration_ms,
+        started_at=(turn or {}).get('started_at'),
+    )
     attach_client_response(turn, data)
-    finalize_turn(turn, usage=data.get('usage'))
+    finalize_turn(turn, usage=usage, duration_ms=duration_ms)
 
     for choice in data.get('choices', []):
         msg = choice.get('message', {})
diff --git a/routes/messages.py b/routes/messages.py
index 0d9faa5..a320081 100644
--- a/routes/messages.py
+++ b/routes/messages.py
@@ -7,6 +7,7 @@ Anthropic Messages API 透传。当 Cursor 直接发送 Anthropic 格式请求
 
 import json
 import logging
+from time import perf_counter
 
 import requests as req_lib
 from flask import Blueprint, request, jsonify
@@ -15,6 +16,7 @@ import settings
 from config import Config
 from routes.common import apply_body_modifications, apply_header_modifications, inject_instructions_anthropic
 from utils.http import build_anthropic_headers, forward_request, sse_response
+from utils.request_history import request_history
 from utils.request_logger import (
     append_client_event,
     append_upstream_event,
@@ -40,6 +42,7 @@ def messages_passthrough():
     model = payload.get('model', 'unknown')
     is_stream = payload.get('stream', False)
 
+    request_started_at = perf_counter()
     logger.info(f'[透传] model={model} 流式={is_stream}')
 
     mapping = settings.resolve_model(model)
@@ -78,7 +81,18 @@ def messages_passthrough():
         attach_upstream_response(turn, data)
         _inject_thinking(data)
         attach_client_response(turn, data)
-        finalize_turn(turn)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='messages',
+            client_model=model,
+            actual_model=model,
+            backend='anthropic',
+            upstream_url=url,
+            usage=data.get('usage'),
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, usage=data.get('usage'), duration_ms=duration_ms)
         return jsonify(data)
 
     def generate():
@@ -108,7 +122,18 @@ def messages_passthrough():
                 'type': 'messages.stream.summary',
                 'event_count': len(client_events),
             })
-            finalize_turn(turn)
+            duration_ms = int((perf_counter() - request_started_at) * 1000)
+            request_history.record(
+                route='messages',
+                client_model=model,
+                actual_model=model,
+                backend='anthropic',
+                upstream_url=url,
+                usage=None,
+                duration_ms=duration_ms,
+                started_at=(turn or {}).get('started_at'),
+            )
+            finalize_turn(turn, duration_ms=duration_ms)
         except req_lib.RequestException as e:
             logger.error(f'请求上游失败: {e}')
             attach_error(turn, {'stage': 'request_exception', 'message': str(e)})
diff --git a/routes/responses.py b/routes/responses.py
index 2496a4b..271c30f 100644
--- a/routes/responses.py
+++ b/routes/responses.py
@@ -8,6 +8,7 @@ from __future__ import annotations
 
 import json
 import logging
+from time import perf_counter
 from typing import Any
 
 import settings
@@ -44,6 +45,7 @@ from utils.http import (
     iter_responses_sse,
     sse_response,
 )
+from utils.request_history import request_history
 from utils.request_logger import (
     append_client_event,
     append_upstream_event,
@@ -78,6 +80,7 @@ def responses_endpoint():
     client_model = payload.get('model', 'unknown')
     is_stream = payload.get('stream', False)
 
+    request_started_at = perf_counter()
     ctx = build_route_context(client_model, is_stream)
     turn = start_turn(
         route='responses',
@@ -94,12 +97,12 @@ def responses_endpoint():
     cc_payload = _build_cc_payload(payload, ctx)
 
     if ctx.backend == 'openai':
-        return _handle_openai_backend(ctx, cc_payload, turn)
+        return _handle_openai_backend(ctx, cc_payload, turn, request_started_at)
     if ctx.backend == 'responses':
-        return _handle_responses_backend(ctx, payload, turn)
+        return _handle_responses_backend(ctx, payload, turn, request_started_at)
     if ctx.backend == 'gemini':
-        return _handle_gemini_backend(ctx, cc_payload, turn)
-    return _handle_anthropic_backend(ctx, cc_payload, turn)
+        return _handle_gemini_backend(ctx, cc_payload, turn, request_started_at)
+    return _handle_anthropic_backend(ctx, cc_payload, turn, request_started_at)
 
 
 def _build_cc_payload(payload: dict[str, Any], ctx: RouteContext) -> dict[str, Any]:
@@ -119,7 +122,12 @@ def _build_cc_payload(payload: dict[str, Any], ctx: RouteContext) -> dict[str, A
     return cc_payload
 
 
-def _handle_openai_backend(ctx: RouteContext, cc_payload: dict[str, Any], turn: dict[str, Any]):
+def _handle_openai_backend(
+    ctx: RouteContext,
+    cc_payload: dict[str, Any],
+    turn: dict[str, Any],
+    request_started_at: float,
+):
     """处理走 OpenAI 兼容后端的 Responses 请求。"""
     cc_payload = normalize_request(cc_payload)
     _dbg(
@@ -132,8 +140,8 @@ def _handle_openai_backend(ctx: RouteContext, cc_payload: dict[str, Any], turn:
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_openai_stream(ctx, cc_payload, url, headers, turn)
-    return _handle_openai_non_stream(ctx, cc_payload, url, headers, turn)
+        return _handle_openai_stream(ctx, cc_payload, url, headers, turn, request_started_at)
+    return _handle_openai_non_stream(ctx, cc_payload, url, headers, turn, request_started_at)
 
 
 def _handle_openai_non_stream(
@@ -142,6 +150,7 @@ def _handle_openai_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any],
+    request_started_at: float,
 ):
     """处理 OpenAI 兼容后端的非流式 Responses 返回。"""
     cc_payload['stream'] = False
@@ -163,6 +172,9 @@ def _handle_openai_non_stream(
         client_model=ctx.client_model,
         turn=turn,
         debug_label='转换为 Responses 后',
+        ctx=ctx,
+        request_started_at=request_started_at,
+        upstream_url=url,
     )
 
 
@@ -172,6 +184,7 @@ def _handle_openai_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 OpenAI 兼容后端的流式 Responses 返回。"""
     cc_payload['stream'] = True
@@ -212,7 +225,18 @@ def _handle_openai_stream(
                     'model': ctx.client_model,
                     'event_count': len(client_events),
                 })
-                finalize_turn(turn)
+                duration_ms = int((perf_counter() - request_started_at) * 1000)
+                request_history.record(
+                    route='responses',
+                    client_model=ctx.client_model,
+                    actual_model=ctx.upstream_model,
+                    backend=ctx.backend,
+                    upstream_url=url,
+                    usage=None,
+                    duration_ms=duration_ms,
+                    started_at=(turn or {}).get('started_at'),
+                )
+                finalize_turn(turn, duration_ms=duration_ms)
                 return
 
             append_upstream_event(turn, {'type': 'openai_chunk', 'data': chunk})
@@ -239,7 +263,12 @@ def _handle_openai_stream(
     return sse_response(generate())
 
 
-def _handle_responses_backend(ctx: RouteContext, payload: dict[str, Any], turn: dict[str, Any] | None):
+def _handle_responses_backend(
+    ctx: RouteContext,
+    payload: dict[str, Any],
+    turn: dict[str, Any] | None,
+    request_started_at: float,
+):
     """处理走原生 Responses 后端的请求。
 
     当中转站本身就只支持 `/v1/responses` 时，不需要再绕到聊天补全中间协议，
@@ -254,8 +283,8 @@ def _handle_responses_backend(ctx: RouteContext, payload: dict[str, Any], turn:
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_responses_stream(ctx, payload, url, headers, turn)
-    return _handle_responses_non_stream(ctx, payload, url, headers, turn)
+        return _handle_responses_stream(ctx, payload, url, headers, turn, request_started_at)
+    return _handle_responses_non_stream(ctx, payload, url, headers, turn, request_started_at)
 
 
 def _handle_responses_non_stream(
@@ -264,6 +293,7 @@ def _handle_responses_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理原生 Responses 后端的非流式返回。"""
     payload['stream'] = False
@@ -282,6 +312,9 @@ def _handle_responses_non_stream(
         client_model=ctx.client_model,
         turn=turn,
         debug_label='原生 Responses 返回后',
+        ctx=ctx,
+        request_started_at=request_started_at,
+        upstream_url=url,
     )
 
 
@@ -291,6 +324,7 @@ def _handle_responses_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理原生 Responses 后端的流式返回。"""
     payload['stream'] = True
@@ -345,7 +379,18 @@ def _handle_responses_stream(
             'event_count': len(client_events),
             'usage': last_usage,
         })
-        finalize_turn(turn, usage=last_usage)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='responses',
+            client_model=ctx.client_model,
+            actual_model=ctx.upstream_model,
+            backend=ctx.backend,
+            upstream_url=url,
+            usage=last_usage,
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, usage=last_usage, duration_ms=duration_ms)
 
     return sse_response(generate())
 
@@ -369,7 +414,12 @@ def _extract_responses_usage(event_data: dict[str, Any]) -> dict[str, Any] | Non
     return None
 
 
-def _handle_gemini_backend(ctx: RouteContext, cc_payload: dict[str, Any], turn: dict[str, Any] | None):
+def _handle_gemini_backend(
+    ctx: RouteContext,
+    cc_payload: dict[str, Any],
+    turn: dict[str, Any] | None,
+    request_started_at: float,
+):
     """处理走 Gemini Contents 后端的 Responses 请求。"""
     gemini_payload = cc_to_gemini_request(cc_payload)
     _dbg(
@@ -382,8 +432,8 @@ def _handle_gemini_backend(ctx: RouteContext, cc_payload: dict[str, Any], turn:
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_gemini_stream(ctx, gemini_payload, url, headers, turn)
-    return _handle_gemini_non_stream(ctx, gemini_payload, url, headers, turn)
+        return _handle_gemini_stream(ctx, gemini_payload, url, headers, turn, request_started_at)
+    return _handle_gemini_non_stream(ctx, gemini_payload, url, headers, turn, request_started_at)
 
 
 def _handle_gemini_non_stream(
@@ -392,6 +442,7 @@ def _handle_gemini_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Gemini 后端的非流式 Responses 返回。"""
     attach_upstream_request(turn, payload, headers)
@@ -412,6 +463,9 @@ def _handle_gemini_non_stream(
         client_model=ctx.client_model,
         turn=turn,
         debug_label='Gemini 转回 Responses 后',
+        ctx=ctx,
+        request_started_at=request_started_at,
+        upstream_url=url,
     )
 
 
@@ -421,6 +475,7 @@ def _handle_gemini_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Gemini 后端的流式 Responses 返回。"""
     converter = ResponsesStreamConverter(model=ctx.client_model)
@@ -487,12 +542,28 @@ def _handle_gemini_stream(
             'event_count': len(client_events),
             'usage': last_usage,
         })
-        finalize_turn(turn, usage=last_usage)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='responses',
+            client_model=ctx.client_model,
+            actual_model=ctx.upstream_model,
+            backend=ctx.backend,
+            upstream_url=url,
+            usage=last_usage,
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, usage=last_usage, duration_ms=duration_ms)
 
     return sse_response(generate())
 
 
-def _handle_anthropic_backend(ctx: RouteContext, cc_payload: dict[str, Any], turn: dict[str, Any] | None):
+def _handle_anthropic_backend(
+    ctx: RouteContext,
+    cc_payload: dict[str, Any],
+    turn: dict[str, Any] | None,
+    request_started_at: float,
+):
     """处理走 Anthropic 后端的 Responses 请求。"""
     anthropic_payload = cc_to_messages_request(cc_payload)
     _dbg(
@@ -505,8 +576,8 @@ def _handle_anthropic_backend(ctx: RouteContext, cc_payload: dict[str, Any], tur
     headers = apply_header_modifications(headers, ctx.header_modifications)
 
     if ctx.is_stream:
-        return _handle_anthropic_stream(ctx, anthropic_payload, url, headers, turn)
-    return _handle_anthropic_non_stream(ctx, anthropic_payload, url, headers, turn)
+        return _handle_anthropic_stream(ctx, anthropic_payload, url, headers, turn, request_started_at)
+    return _handle_anthropic_non_stream(ctx, anthropic_payload, url, headers, turn, request_started_at)
 
 
 def _handle_anthropic_non_stream(
@@ -515,6 +586,7 @@ def _handle_anthropic_non_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Anthropic 后端的非流式 Responses 返回。"""
     anthropic_payload['stream'] = False
@@ -536,6 +608,9 @@ def _handle_anthropic_non_stream(
         client_model=ctx.client_model,
         turn=turn,
         debug_label='Messages 转回 Responses 后',
+        ctx=ctx,
+        request_started_at=request_started_at,
+        upstream_url=url,
     )
 
 
@@ -545,6 +620,7 @@ def _handle_anthropic_stream(
     url: str,
     headers: dict[str, str],
     turn: dict[str, Any] | None,
+    request_started_at: float,
 ):
     """处理 Anthropic 后端的流式 Responses 返回。
 
@@ -600,7 +676,18 @@ def _handle_anthropic_stream(
             'model': ctx.client_model,
             'event_count': len(client_events),
         })
-        finalize_turn(turn)
+        duration_ms = int((perf_counter() - request_started_at) * 1000)
+        request_history.record(
+            route='responses',
+            client_model=ctx.client_model,
+            actual_model=ctx.upstream_model,
+            backend=ctx.backend,
+            upstream_url=url,
+            usage=None,
+            duration_ms=duration_ms,
+            started_at=(turn or {}).get('started_at'),
+        )
+        finalize_turn(turn, duration_ms=duration_ms)
 
     return sse_response(generate())
 
@@ -611,6 +698,9 @@ def _finalize_responses_response(
     client_model: str,
     turn: dict[str, Any],
     debug_label: str,
+    ctx: RouteContext,
+    request_started_at: float,
+    upstream_url: str,
 ):
     """统一收尾非流式 Responses 响应。
 
@@ -621,14 +711,26 @@ def _finalize_responses_response(
     _dbg(debug_label + '=' + json.dumps(response_data, ensure_ascii=False, default=str)[:1000])
     log_usage('响应生成', response_data.get('usage', {}), input_key='input_tokens', output_key='output_tokens')
 
+    usage = response_data.get('usage')
+    duration_ms = int((perf_counter() - request_started_at) * 1000)
     usage_tracker.record(
         client_model,
-        response_data.get('usage'),
+        usage,
         input_key='input_tokens',
         output_key='output_tokens',
     )
+    request_history.record(
+        route='responses',
+        client_model=client_model,
+        actual_model=ctx.upstream_model,
+        backend=ctx.backend,
+        upstream_url=upstream_url,
+        usage=usage,
+        duration_ms=duration_ms,
+        started_at=(turn or {}).get('started_at'),
+    )
 
     attach_client_response(turn, response_data)
-    finalize_turn(turn, usage=response_data.get('usage'))
+    finalize_turn(turn, usage=usage, duration_ms=duration_ms)
 
     return jsonify(response_data)
diff --git a/static/admin.css b/static/admin.css
index 875bbcb..1824b17 100644
--- a/static/admin.css
+++ b/static/admin.css
@@ -83,3 +83,11 @@ main{padding:28px 0 60px}
 .toast-ok{background:#065f46;color:#a7f3d0}
 .toast-err{background:#7f1d1d;color:#fca5a5}
 @keyframes slideIn{from{transform:translateX(100px);opacity:0}to{transform:none;opacity:1}}
+
+.request-logs-wrap{overflow:auto}
+.request-logs-table{min-width:1100px}
+.request-logs-table td{vertical-align:top}
+.log-url{max-width:320px;word-break:break-all;color:var(--muted)}
+.log-status{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}
+.status-ok{background:rgba(34,197,94,.15);color:var(--green)}
+.status-error{background:rgba(239,68,68,.15);color:var(--red)}
diff --git a/static/admin.html b/static/admin.html
index 5d382ad..bf79a2e 100644
--- a/static/admin.html
+++ b/static/admin.html
@@ -90,6 +90,16 @@
       </div>
       <div id="statsContent"><div class="empty">加载中…</div></div>
     </div>
+
+    <!-- 请求日志 -->
+    <div class="card">
+      <div class="card-header">
+        <h2>最近 500 条请求日志</h2>
+        <button class="btn btn-ghost btn-sm" onclick="loadRequestLogs()">刷新</button>
+      </div>
+      <div class="hint" style="margin-top:-12px;margin-bottom:16px">显示请求时间、请求模型、实际上游模型、上游 URL、Token 统计、耗时和状态。</div>
+      <div id="requestLogsContent"><div class="empty">加载中…</div></div>
+    </div>
   </main>
 </div>
 
diff --git a/static/admin.js b/static/admin.js
index a5d5e6c..67a4679 100644
--- a/static/admin.js
+++ b/static/admin.js
@@ -72,6 +72,7 @@ async function loadDashboard() {
     await loadMappings();
     checkHealth();
     loadStats();
+    loadRequestLogs();
   } catch (e) {
     toast('加载设置失败: ' + e.message, false);
   }
@@ -104,6 +105,55 @@ async function loadStats() {
   }
 }
 
+async function loadRequestLogs() {
+  const el = document.getElementById('requestLogsContent');
+  try {
+    const data = await api('/api/admin/request-logs');
+    const items = data.items || [];
+    if (!items.length) {
+      el.innerHTML = '<div class="empty">暂无请求日志</div>';
+      return;
+    }
+    let html = '<div class="request-logs-wrap"><table class="stats-table request-logs-table"><thead><tr><th>请求时间</th><th>请求模型</th><th>实际模型</th><th>上游 URL</th><th>Tokens</th><th>耗时</th><th>状态</th></tr></thead><tbody>';
+    for (const item of items) {
+      const usage = item.usage || {};
+      const tokens = '输 ' + fmtNum(usage.input_tokens) + ' / 出 ' + fmtNum(usage.output_tokens) + ' / 总 ' + fmtNum(usage.total_tokens);
+      const statusClass = item.status === 'ok' ? 'status-ok' : 'status-error';
+      const statusText = item.status === 'ok' ? '成功' : '异常';
+      html += '<tr>'
+        + '<td>' + esc(fmtTime(item.requested_at)) + '</td>'
+        + '<td>' + esc(item.requested_model || '-') + '</td>'
+        + '<td>' + esc(item.actual_model || '-') + '</td>'
+        + '<td class="log-url" title="' + esc(item.upstream_url || '') + '">' + esc(item.upstream_url || '-') + '</td>'
+        + '<td>' + esc(tokens) + '</td>'
+        + '<td>' + fmtNum(item.duration_ms) + ' ms</td>'
+        + '<td><span class="log-status ' + statusClass + '">' + statusText + '</span></td>'
+        + '</tr>';
+    }
+    html += '</tbody></table></div>';
+    el.innerHTML = html;
+  } catch (e) {
+    el.innerHTML = '<div class="empty">加载请求日志失败</div>';
+  }
+}
+
+function fmtNum(value) {
+  return Number(value || 0).toLocaleString();
+}
+
+function fmtTime(value) {
+  if (!value) return '-';
+  const d = new Date(value);
+  if (Number.isNaN(d.getTime())) return String(value);
+  const pad = n => String(n).padStart(2, '0');
+  return d.getFullYear() + '-'
+    + pad(d.getMonth() + 1) + '-'
+    + pad(d.getDate()) + ' '
+    + pad(d.getHours()) + ':'
+    + pad(d.getMinutes()) + ':'
+    + pad(d.getSeconds());
+}
+
 async function checkHealth() {
   try {
     const r = await fetch(API + '/health');
diff --git a/utils/request_history.py b/utils/request_history.py
new file mode 100644
index 0000000..e8dde7f
--- /dev/null
+++ b/utils/request_history.py
@@ -0,0 +1,111 @@
+"""请求历史记录。
+
+为管理后台提供最近请求查询能力，默认仅保留最近 500 条，
+重启后会从磁盘恢复最近一次快照。
+"""
+
+from __future__ import annotations
+
+import json
+import os
+import threading
+from collections import deque
+from datetime import datetime, timezone
+from typing import Any
+
+from settings import DATA_DIR
+
+_MAX_RECORDS = 500
+_FILE_PATH = os.path.join(DATA_DIR, 'request_logs.json')
+
+
+def _now_iso() -> str:
+    return datetime.now(timezone.utc).isoformat().replace('+00:00', 'Z')
+
+
+def _safe_int(value: Any) -> int:
+    try:
+        return int(value or 0)
+    except (TypeError, ValueError):
+        return 0
+
+
+def _normalize_usage(usage: dict[str, Any] | None) -> dict[str, int]:
+    usage = usage or {}
+    input_tokens = _safe_int(
+        usage.get('prompt_tokens', usage.get('input_tokens', 0))
+    )
+    output_tokens = _safe_int(
+        usage.get('completion_tokens', usage.get('output_tokens', 0))
+    )
+    total_tokens = _safe_int(usage.get('total_tokens', input_tokens + output_tokens))
+    return {
+        'input_tokens': input_tokens,
+        'output_tokens': output_tokens,
+        'total_tokens': total_tokens,
+    }
+
+
+class RequestHistory:
+    def __init__(self) -> None:
+        self._lock = threading.Lock()
+        self._records: deque[dict[str, Any]] = deque(maxlen=_MAX_RECORDS)
+        self._load()
+
+    def record(
+        self,
+        *,
+        route: str,
+        client_model: str,
+        actual_model: str,
+        backend: str,
+        upstream_url: str,
+        usage: dict[str, Any] | None,
+        duration_ms: int,
+        started_at: str | None = None,
+        status: str = 'ok',
+        error_message: str = '',
+    ) -> None:
+        record = {
+            'requested_at': started_at or _now_iso(),
+            'route': route,
+            'requested_model': client_model or '',
+            'actual_model': actual_model or '',
+            'backend': backend or '',
+            'upstream_url': upstream_url or '',
+            'duration_ms': max(_safe_int(duration_ms), 0),
+            'status': status or 'ok',
+            'error_message': error_message or '',
+            'usage': _normalize_usage(usage),
+            'recorded_at': _now_iso(),
+        }
+        with self._lock:
+            self._records.appendleft(record)
+            self._persist_locked()
+
+    def get_recent(self, limit: int = _MAX_RECORDS) -> list[dict[str, Any]]:
+        size = max(1, min(_safe_int(limit), _MAX_RECORDS))
+        with self._lock:
+            return list(self._records)[:size]
+
+    def _load(self) -> None:
+        if not os.path.exists(_FILE_PATH):
+            return
+        try:
+            with open(_FILE_PATH, 'r', encoding='utf-8') as f:
+                data = json.load(f)
+            if not isinstance(data, list):
+                return
+            for item in data[:_MAX_RECORDS]:
+                if isinstance(item, dict):
+                    self._records.append(item)
+        except (OSError, json.JSONDecodeError):
+            self._records.clear()
+
+    def _persist_locked(self) -> None:
+        os.makedirs(DATA_DIR, exist_ok=True)
+        with open(_FILE_PATH, 'w', encoding='utf-8') as f:
+            json.dump(list(self._records), f, ensure_ascii=False, indent=2)
+
+
+request_history = RequestHistory()