更新日: 2026-06-06
Create Completion (Legacy)
This is a compatibility endpoint, not the primary recommended path. For new integrations, prefer /v1/chat/completions or /v1/responses.
Current Production Status
As of March 23, 2026, Crazyrouter production confirms:
- the route still exists
- a request using the classic example model
gpt-4.1-mini returned 503
- the error code was
model_not_found
- the message said the model was temporarily unavailable
In practice, this means the endpoint should be treated as legacy-client compatibility only, not as the default path for new work.
Current Recommendation
- Use
Chat Completions for new chat-style integrations
- Use
Responses when you need GPT-5 reasoning, web search, or newer response shapes
- Only keep testing
/v1/completions if you already depend on a legacy client and have confirmed that your legacy model is currently available
Retest Template
If you must verify whether a legacy model still works on this endpoint, first confirm the model ID through /v1/models, then send a minimal request:
Observed production error example: