A mere two days after announcing GPT-4.1, OpenAI is releasing not one but two new models. The company today announced the public availability of o3 and o4-mini. Of the former, OpenAI says o3 is its most advanced reasoning model yet, with it showing “strong performance” in coding, math and science tasks. As for o4-mini, OpenAI is billing it as a lower cost alternative that still delivers “impressive results” across those same fields.
More notably, both models offer novel capabilities not found in OpenAI’s past systems. For first time, the company’s reasoning
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