diff --git a/backend/api_performance_report.md b/backend/api_performance_report.md
index 837a696..006fe37 100644
--- a/backend/api_performance_report.md
+++ b/backend/api_performance_report.md
@@ -1,49 +1,51 @@
-# API Benchmarking Report (2026-04-05 23:55:38)
+# API Benchmarking Report (2026-04-06 13:45:31)
**Base URL:** `https://api.imageteach.tech:8002`
## Executive Summary
| Task | Success Rate | Avg TTFB | Avg Latency | P95 Latency | TPS | RPS |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
-| Completion-Short | 100.0% | 7519.5ms | 7520.1ms | 14075.8ms | 63.9 | 0.58 |
-| Completion-Normal | 70.0% | 9184.3ms | 9184.8ms | 14619.5ms | 100.5 | 0.14 |
-| Completion-Long | 100.0% | 22419.4ms | 22419.8ms | 39618.0ms | 852.5 | 0.21 |
-| OCR-Concurrent | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 5.49 |
-| TTS-Concurrent | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 11.27 |
-| ASR-Concurrent | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 7.54 |
-| Convert-Concurrent | 100.0% | 377.9ms | 378.6ms | 1017.7ms | 26.4 | 5.28 |
+| Completion-Short | 90.0% | 9123.6ms | 9123.8ms | 20222.9ms | 7.9 | 0.08 |
+| Completion-Normal | 10.0% | 10559.3ms | 10559.6ms | 10559.6ms | 66.4 | 0.66 |
+| Completion-Long | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 8.97 |
+| OCR-Concurrent | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 6.75 |
+| TTS-Concurrent | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 10.17 |
+| ASR-Concurrent | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 13.02 |
+| Convert-Concurrent | 0.0% | 0.0ms | 0.0ms | 0.0ms | 0.0 | 5.98 |
## Stability & Context Analysis
Detailed analysis of how context length affects TTFB and overall performance.
### Completion-Short Details
- **Total Samples:** 10
-- **Duration:** 17.36s
+- **Duration:** 123.93s
+- **Top Errors:**
+ - `[0]`
### Completion-Normal Details
- **Total Samples:** 10
-- **Duration:** 70.66s
+- **Duration:** 15.21s
- **Top Errors:**
- - `[504]`
-504 Gateway Time-out
+ - `[502]`
+502 Bad Gateway
-504 Gateway Time-out
+502 Bad Gateway
openresty
- - `[504]`
-504 Gateway Time-out
+ - `[502]`
+502 Bad Gateway
-504 Gateway Time-out
+502 Bad Gateway
openresty
- - `[504]`
-504 Gateway Time-out
+ - `[502]`
+502 Bad Gateway
-504 Gateway Time-out
+502 Bad Gateway
openresty
@@ -51,32 +53,144 @@ Detailed analysis of how context length affects TTFB and overall performance.
### Completion-Long Details
- **Total Samples:** 10
-- **Duration:** 47.09s
+- **Duration:** 1.11s
+- **Top Errors:**
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
### OCR-Concurrent Details
- **Total Samples:** 10
-- **Duration:** 1.82s
+- **Duration:** 1.48s
- **Top Errors:**
- - `[500]` {"error":"model runner has unexpectedly stopped, this may be due to resource limitations or an internal error, check ollama server logs for details (status code: 500)"}
- - `[500]` {"error":"model runner has unexpectedly stopped, this may be due to resource limitations or an internal error, check ollama server logs for details (status code: 500)"}
- - `[500]` {"error":"model runner has unexpectedly stopped, this may be due to resource limitations or an internal error, check ollama server logs for details (status code: 500)"}
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
### TTS-Concurrent Details
- **Total Samples:** 10
-- **Duration:** 0.89s
+- **Duration:** 0.98s
- **Top Errors:**
- - `[404]` {"detail":"Not Found"}
- - `[404]` {"detail":"Not Found"}
- - `[404]` {"detail":"Not Found"}
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
### ASR-Concurrent Details
- **Total Samples:** 10
-- **Duration:** 1.33s
+- **Duration:** 0.77s
- **Top Errors:**
- - `[404]` {"detail":"Not Found"}
- - `[404]` {"detail":"Not Found"}
- - `[404]` {"detail":"Not Found"}
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
### Convert-Concurrent Details
- **Total Samples:** 10
-- **Duration:** 1.90s
\ No newline at end of file
+- **Duration:** 1.67s
+- **Top Errors:**
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+
+
+ - `[502]`
+502 Bad Gateway
+
+502 Bad Gateway
+
openresty
+
+