While the original o1 model still has broader general knowledge than o3-mini, the new model's major advantage is its faster speed and higher performance compared to o1-mini.

OpenAI released its o3-mini reasoning model to all users (including free tier) on Friday.

OpenAI is changing the way its newest AI model, o3-mini, communicates its step-by-step "thought" process.

OpenAI adds GPT-4.1 to ChatGPT amid complaints over confusing model lineup Two new AI models join 7 others, leaving some paid users wondering which one is best.

OpenAI is preparing to release its new lightweight reasoning model o3 mini, which will excel in science, code, and math.

OpenAI launched its cost-efficient o3-mini model in the same week that DeepSeek's R1 disrupted the tech industry.