OpenRouter error
OpenRouter 500 server: what it means and how to fix it
500 serverRetry? Not statedLast verified 0 documented fixes1 source
What it means
An unexpected internal error. The upstream error message is masked: message is replaced with a generic string and provider_code and openrouter_metadata are omitted, but error_type server is still present.
Causes
- Unexpected internal error
How to fix it
The official docs list no specific fix for this error. Check the causes above and the provider's error docs under Sources.
More OpenRouter errors
All 32 OpenRouter errors400 invalid_requestRetry? Not stated400 invalid_promptRetry? Not stated400 context_length_exceededRetry? Not stated400 max_tokens_exceededRetry? Not stated400 token_limit_exceededRetry? Not stated400 string_too_longRetry? Not stated400 invalid_imageRetry? Not stated400 image_too_largeRetry? Not stated
HTTP 500 at other providers
Compare 500 across providers500 InternalServerExceptionRetry? YesAmazon Bedrock500 api_errorRetry? YesAnthropic API500 Server ErrorRetry? YesAzure OpenAI500 Server ErrorRetry? Not statedCohere API500 - Server ErrorRetry? YesDeepSeek API500 api_errorRetry? YesGemini API500 INTERNALRetry? YesGemini API500 Internal Server ErrorRetry? YesGroq API500 Internal server errorRetry? YesMistral API500 The server had an error while processing your requestRetry? YesOpenAI API500 UNKNOWN / INTERNALRetry? YesVertex AI
FAQ
What does the OpenRouter error "500 server" mean?
An unexpected internal error. The upstream error message is masked: message is replaced with a generic string and provider_code and openrouter_metadata are omitted, but error_type server is still present.
How do I fix OpenRouter "500 server"?
The official docs list no specific fix for this error. Documented cause: Unexpected internal error
Should I retry OpenRouter "500 server"?
Not stated. The official docs do not say whether this error is retryable.
Which other AI APIs return HTTP 500?
Per their official error docs: Amazon Bedrock (500 InternalServerException), Anthropic API (500 api_error), Azure OpenAI (500 Server Error), Cohere API (500 Server Error), DeepSeek API (500 - Server Error), Gemini API (500 api_error; 500 INTERNAL), Groq API (500 Internal Server Error), Mistral API (500 Internal server error), OpenAI API (500 The server had an error while processing your request), Vertex AI (500 UNKNOWN / INTERNAL).
Sources
Last verified against 1 source: OpenRouter's official docs and official SDK repositories.
Newsletter
Know when the APIs change
One email per week. New model releases, API changes, what broke, and how developers are working around it.