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OpenAI o3
About OpenAI o3
OpenAI o3 is an AI model developed by OpenAI, in the language category, released in 2025, made available as a proprietary (API-only) model. Reasoning model o3 announced..
On this page you'll find OpenAI o3's full specifications. Review provider pricing and benchmark scores below, or compare OpenAI o3 head-to-head with other language models.
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Frequently asked questions
What is OpenAI o3? ▶
Reasoning model o3 announced. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.
Who created OpenAI o3? ▶
OpenAI o3 was developed by OpenAI and released in 2025.
Is OpenAI o3 open source or proprietary? ▶
OpenAI o3 is a proprietary model. It is accessed through an API rather than by downloading the weights.
How much does OpenAI o3 cost? ▶
Pricing for OpenAI o3 depends on the provider. See the providers table on this page for the latest API rates.
How does OpenAI o3 perform on benchmarks? ▶
Benchmark scores for OpenAI o3 are listed on this page as they are published. You can compare it head-to-head with other models on the GenAIList compare tool.
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