AI Model Release Tracker

o3-mini

Released

o3-mini is an AI model released by OpenAI on Friday, Jan 31 2025, 57 days after o1. Benchmark results (shown below) cover SWE-Bench Verified.

API pricing

InputWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
$1.10
Cached inputA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
$0.55
OutputWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
$4.40
  • Reasoning or thinking is supported.
USD per 1M tokensEvery price here is for one million tokens. A token is roughly three-quarters of a word, so a million tokens is about 750,000 words of text.Verified August 18, 2026Read from developers.openai.com. Click the check to open the source.

Available from

OpenAI$1.10$4.40200K
USD per 1M tokensEvery price here is for one million tokens. A token is roughly three-quarters of a word, so a million tokens is about 750,000 words of text.Checked October 18, 2026Third-party rates from openrouter.ai, not the lab’s own list price.

Benchmarks

SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better.via BenchLM
49.3%
#54 of 59

Source: BenchLM, retrieved 31 August 2026. Other sources are identified on the linked benchmark pages.

Compare o3-mini with

o3-mini

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Frequently asked questions

o3-mini was released by OpenAI on Friday, Jan 31 2025.

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2022

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