OpenAI o1-mini is a small, faster, and more affordable o-series reasoning model. It is text-only and supports a 128,000-token input context with 65,536 output tokens, exposing streaming and reasoning tokens across Chat Completions, Responses, Batch, Fine-tuning, and Assistants APIs. Note that o1-mini does not support function calling, structured outputs, or predicted outputs — OpenAI recommends o3-mini for higher intelligence at comparable latency and cost.
Chat Completions API
/api/v1/chat/completions
OpenAI-compatible endpoint with a messages array. Standard interface for chat-based interactions.
Responses API
/api/v1/responses
Native OpenAI Responses format with a simplified input parameter for single-turn requests.
These providers haven't been health-probed for this model yet. The router still routes around upstreams that fail live requests — uptime fills in once probe history accrues.
curl https://anyrouter.dev/api/v1/chat/completions \
-H "Authorization: Bearer $ANYROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openai/o1-mini",
"messages": [
{"role": "user", "content": "Say hi in 3 words."}
]
}'ANYROUTER_API_KEY — Dashboard → Keys{
"model": "openai/o1-mini",
"messages": [
{
"role": "user",
"content": "Say hi in 3 words."
}
]
}Change sort, ZDR, effort, or pin a provider to add routing params.