Over the last week, OpenAI’s place atop the AI model hierarchy has been heavily challenged by Chinese model DeepSeek. Today, OpenAI struck back with the public release of o3-mini, its latest simulated reasoning model and the first of its kind the company will offer for free to all users without a subscription.
First teased last month, OpenAI brags in today’s announcement that o3-mini “advances the boundaries of what small models can achieve.” Like September’s o1-mini before it, the model has been optimized for STEM functions and shows “particular strength in science, math, and coding” despite lower operating costs and latency than o1-mini, OpenAI says.
Harder, better, faster, stronger
Users are able to choose from three different “reasoning effort options” when using o3-mini, allowing them to fine-tune a balance between latency and accuracy depending on the task. The lowest of these reasoning levels generally shows accuracy levels comparable to o1-mini in math and coding benchmarks, according to OpenAI, while the highest matches or surpasses the full-fledged o1 model in the same tests.