ChutesAI provider + OpenAI-compatible endpoint still failing in 3.27.0 (500 / 404) even though direct curl succeeds

[bizprat]

App Version

3.27.0

API Provider

Chutes AI

Model Used

moonshotai/Kimi-K2-Instruct-0905

Roo Code Task Links (Optional)

Description

Roo Code 3.27.0 cannot complete requests when using:

1. Provider = ChutesAI → always returns HTTP 500 (empty body)
2. Provider = OpenAI-compatible (https://llm.chutes.ai/v1) → returns HTTP 500
3. Alternative base URL (https://api.chutes.ai/v1) → returns HTTP 404

However, the identical request sent directly with curl succeeds every time:

curl -X POST https://llm.chutes.ai/v1/chat/completions \
  -H "Authorization: Bearer <API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{
        "model": "moonshotai/Kimi-K2-Instruct-0905",
        "messages": [{ "role": "user", "content": "Hello." }],
        "stream": false,
        "max_tokens": 1024,
        "temperature": 0.7
      }'

App Version

Roo Code: 3.27.0 (VS Code extension)
VS Code: 1.89.1
OS: Ubuntu 22.04 LTS (x64)
Node.js: 22.18.0

Expected Behavior

Roo Code should return a normal chat completion, identical to the working curl request.

Actual Behavior

• Chutes AI provider: HTTP 500 with empty JSON body.
• OpenAI-compatible provider: HTTP 500 or 404 (depending on base URL).
  No streaming, no content returned.

Logs / Console Output

info: Sending request to Chutes provider…
error: Request failed with status code 500
error: {}

Additional Context

• The integration bug looks identical to Issue Unexpected API response Problem with Chutes AI #7322 “Unexpected API response Problem with Chutes AI” which was marked fixed but still happens in 3.27.0[30].
• All quotas/credits on Chutes are valid; direct curl confirms the backend is healthy.
• Re-installing the extension, clearing Roo Code cache, and disabling other extensions had no effect.
• OpenRouter BYOK works for other providers but is not an option here due to additional 5 % fee.

Request Checklist

• Searched existing Issues (Unexpected API response Problem with Chutes AI #7322) for duplicates.
• Provided clear steps to reproduce and logs.
• Confirmed the problem is on Roo Code’s side (direct API call works).

🔁 Steps to Reproduce

1. Open Roo Code Settings → Providers → Chutes AI.
2. Enter a valid API key and select moonshotai/Kimi-K2-Instruct-0905.
3. Ask the model any question (e.g., “Hello”).
4. Observe Request failed: 500 in Roo Code’s output panel.
5. Switch to OpenAI-compatible provider with base URL https://llm.chutes.ai/v1 and repeat → same 500 error.
6. Try base URL https://api.chutes.ai/v1 → Roo Code now shows 404.

💥 Outcome Summary

Expected code to run, but got an HTTP 500 with empty JSON body error.

📄 Relevant Logs or Errors (Optional)

[daniel-lxs]

Hey @bizprat I am unable to replicate this issue on the Chutes provider I can use the Kimi model without issue, I would recommend entering all your settings again and see if that works.