OpenAI's most powerful reasoning model
OpenAI o3 is a powerful reasoning AI model in the o-series, successor to o1, designed for complex tasks in coding, math, science, and visual reasoning. It uses reinforcement learning for private chain-of-thought reasoning, achieving state-of-the-art benchmarks like Codeforces Elo 2727, SWE-bench 71.7%, GPQA Diamond 87.7%. Released April 16, 2025, with variants like o3-pro and o3-mini; available via ChatGPT and API for developers, researchers, and enterprises needing advanced analysis.
Standard text-token pricing. The same official pricing page also lists separate Batch ($1.00 input / $0.25 cached input / $4.00 output), Flex ($1.00 / $0.25 / $4.00), and Priority ($3.50 / $0.875 / $14.00) tiers for o3; only the standard tier is recorded here.
OpenAI’s official API pricing docs list o3 under Standard text-token pricing at $2.00 per 1M input tokens, $0.50 per 1M cached input tokens, and $8.00 per 1M output tokens. The model page also shows o3 with the same standard price and notes separate batch/flex/priority tiers.
