OpenRouter 402 Error with MiniMax M3 in Free Claude Code

Description

I successfully installed and configured Free Claude Code and connected it to OpenRouter using a valid API key.

The model is configured as:

anthropic/open_router/minimax/minimax-m3

The API key is working correctly because OpenRouter logs show that requests are reaching the provider and consuming tokens.

However, every prompt fails with the following error:

Upstream provider OPENROUTER returned HTTP 402.

This request requires more credits, or fewer max_tokens.
You requested up to 32000 tokens, but can only afford 31886.

Steps to Reproduce

1. Install Free Claude Code.

2. Configure OpenRouter API key.

3. Set model to:

   anthropic/open_router/minimax/minimax-m3
   

4. Start fcc-server.

5. Launch fcc-claude.

6. Enter any prompt, including simple prompts such as:

   hello
   

   or

   what model are you?
   

Expected Behavior

The request should be sent to MiniMax M3 and return a response.

Actual Behavior

Every request fails before generation starts with HTTP 402.

Additional Information

• Thinking mode disabled: Tested
• Simple prompts: Tested
• OpenRouter API key: Valid
• Requests appear in OpenRouter Activity logs
• OpenRouter Activity shows approximately 29K tokens processed from previous requests
• Error occurs even for extremely small prompts

The error suggests that Free Claude Code may be sending a default max_tokens value of 32000 for every request, causing OpenRouter to reject the request during budget validation before generation begins.

Could you confirm whether the gateway is forcing max_tokens=32000 or provide a way to reduce the requested output token limit?