How much does o3 Mini cost?

o3 Mini is available at $1.1/1M input tokens through OpenRouter.

When was o3 Mini released?

o3 Mini was released on 2025-03-31.

o3 Mini is available from 1 provider: OpenRouter.

o3 Mini has been evaluated on 4 benchmarks, including Aider Polyglot, Chatbot Arena, Google-Proof Q&A, MMLU PRO.

Name: o3 Mini
Author: OpenAI

OpenAI o3-mini - cost-optimized reasoning model. Compact variant of reasoning model family.

VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution

Provider	Input (per 1M)	Output (per 1M)	Type
OpenRouter	$1.1	$4.4	Serverless

Benchmark	Score	Version	Source
Aider Polyglot	60.4	2026-04 (high)	https://aider.chat/docs/leaderboards
Chatbot Arena	1335.0	—	https://lmarena.ai
Google-Proof Q&A	79.7	diamond	https://openai.com/index/openai-o3-and-o4-mini-system-card/
MMLU PRO	79.1	—	https://huggingface.co/spaces/TIGER-Lab/MMLU-Pro