Bad request errors across LLM providers
How bad request errors show up across Gemini, OpenAI, Anthropic, OpenRouter and more — and how to route around them.
DeepSeek
HTTP 400
DeepSeek 400 — reasoning_content must be passed
48 teams affected · last 30 days
Google Gemini
HTTP 400
Gemini 400 — Function call missing a thought_signature
42 teams affected · last 30 days
OpenAI
HTTP 400
OpenAI 400 — Context length exceeded
34 teams affected · last 30 days
Anthropic
HTTP 400
Anthropic 400 — You are out of extra usage
30 teams affected · last 30 days