# App/complete returns HTTP 500 for every BYOK provider (GLM / DeepSeek / MiniMax) while the non-BYOK path stays healthy **URL:** \ **Category:** Developers\ **Created:** [August 24, 2026, 11:59am UTC](https://forum.anna.partners/t/app-complete-returns-http-500-for-every-byok-provider-glm-deepseek-minimax-while-the-non-byok-path-stays-healthy/256 "2026-08-24T11:59:15Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![gqy](https://avatars.discourse-cdn.com/v4/letter/g/779978/32.png) [@gqy](https://forum.anna.partners/u/gqy)\ **Post date:** [August 24, 2026, 11:59am UTC](https://forum.anna.partners/t/app-complete-returns-http-500-for-every-byok-provider-glm-deepseek-minimax-while-the-non-byok-path-stays-healthy/256/1 "2026-08-24T11:59:16Z")
**Summary:** With BYOK enabled, `POST /api/v1/copilot/app/complete` consistently returns `HTTP 500 Internal Server Error`, regardless of provider or model. The non-BYOK path is healthy. The Anna team has confirmed this is a platform-side bug and a fix is in progress — posting here so the context and fix updates live in one thread (as Jiao suggested by email). **Environment:** - Account: [qingyu\_ge@foxmail.com](mailto:qingyu_ge@foxmail.com) (user\_id 368) - App slug: anna-truman-director - BYOK providers registered (all show “verified” in Settings → LLM): - DeepSeek — official endpoint `api.deepseek.com/v1` - GLM — Coding Plan endpoint `open.bigmodel.cn/api/coding/paas/v4` (the standard `/api/paas/v4` has no balance for this key) - MiniMax — `api.minimaxi.com/v1` - “Apps / plugins may use my API key” switch: ON **Reproduction** (dev session, kind=complete): 1. `POST /api/v1/anna-apps/dev/session/mint` → \*\*200 OK\*\* (token carries quota caps: 4096 tok/call, 1000 calls/day) 2. `POST /api/v1/copilot/app/complete` with a minimal body (`Say OK`, max\_tokens 32) → \*\*HTTP 500 `Internal Server Error`\*\* (plain text, no JSON detail) **Test matrix:** | Preferred model | Switch | Result | |—|—|—| | byok:glm/glm-5.3 (reasoning model) | ON | 500 | | byok:minimax/MiniMax-M3 (reasoning model) | ON | 500 | | byok:deepseek/deepseek-v4-flash (non-reasoning) | ON | 500 | | Qwen3.7 Max (platform model) | OFF | normal 429 subscription JSON (code -32015) — non-BYOK path healthy | **Additional isolation:** - Each provider key tested directly against its own endpoint returns \*\*200 OK\*\* with correct completions — provider configs are clean - Direct key test details: GLM coding endpoint returns proper completions incl. `reasoning_content`; provider “Test & Save” verification passes for all three - Failure is isolated to the platform’s BYOK forwarding on app/complete, independent of provider and reasoning vs non-reasoning models **Impact:** Blocks real-LLM end-to-end verification for apps whose developer quota is expired (the BYOK path is the recommended route for builders per the team). Happy to add more details or re-test against a fix. Thanks! ---
**Author:** ![hunter](https://yyz1.discourse-cdn.com/flex033/user_avatar/forum.anna.partners/hunter/32/8_2.png) [@hunter](https://forum.anna.partners/u/hunter)\ **Post date:** [August 27, 2026, 10:22am UTC](https://forum.anna.partners/t/app-complete-returns-http-500-for-every-byok-provider-glm-deepseek-minimax-while-the-non-byok-path-stays-healthy/256/2 "2026-08-27T10:22:22Z")
Hi @gqy! 👋 First of all — thank you for this outstanding bug report! 🙌 The clean test matrix (three providers × reasoning/non-reasoning models, plus the direct-key isolation tests) made this a joy to investigate and let us reproduce it right away. **Confirmed & fixed!** ✅ Your diagnosis was spot on: this was a platform-side bug in the BYOK routing path for `app/complete`. It affected **every** BYOK provider and model equally — nothing was wrong with your provider configs, keys, or app. The non-BYOK path was untouched, which is exactly the asymmetry you observed. **What we did:** - 🔧 Fixed the faulty code path in the BYOK model-selection step - 🧪 Added a full end-to-end regression test covering the third-party BYOK chain, so this specific failure mode can’t sneak back in **Rollout:** the fix ships in **v1.1.0-beta.144** , scheduled to roll out **this Friday**. 🚀 Once it’s live, your exact repro (dev session mint → `app/complete` with `byok:glm/glm-5.3`, `byok:minimax/MiniMax-M3`, or `byok:deepseek/deepseek-v4-flash`) should return normal completions — reasoning models included. We’d love it if you could re-run your test matrix after the update and confirm on this thread! 💚 Thanks again for taking the time to document this so thoroughly — reports like yours make the platform better for every builder. Happy building! ✨