Summary

OpenAI · Released Apr 24, 2025

Input price / MTok

Output price / MTok

200K

Context window

167

Tokens / sec

71.7

SWE-bench Verified

87.7

GPQA Diamond

88.9

AIME 2025

82.9

MMMU

Summary

o3 is a proprietary language model from OpenAI, released on Apr 24, 2025.

At $2 input and $8 output per million tokens, it ranks #24 of 40 for input price, placing it mid-range on input cost.

Its context window of 200K tokens ranks #37 of 41 for context depth in this dataset.

It targets reasoning, coding workloads.

Throughput is measured at 167 tokens per second (ranked #4 of 23 for throughput).

Full reasoning model; chain-of-thought reasoning tokens billed as output.

Benchmarks

Technical specs

OpenAI

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Speed source: https://artificialanalysis.ai/models/o3