O3
O3 is a chat model developed by OpenAI, capable of handling a wide range of tasks, including chain of thought, code generation, and reasoning, with support for both text and image inputs. It excels in coding and mathematical tasks, as evidenced by its top 25% or better scores in the Coding Index, Math Index, MMLU-Pro, LiveCodeBench, AIME, and MATH-500 benchmarks.
Input
Output
Context
200K
Max Output
100K
Parameters
-
Technical Specifications
Model TypeChat
Context Window200,000 tokens
Max Output Tokens100,000 tokens
ParametersNot available
Release DateApr 9, 2025
Training CutoffJun 1, 2024
Licenseproprietary
Open SourceNo
Input Modalities
ImageText
Output Modalities
Text
Capabilities
Benchmarks
Artificial Analysis
20.0%
HLE
69.3%
AA-LCR
90.3%
AIME
82.7%
GPQA
80.7%
Tau2-Bench
88.3%
AIME 2025
71.4%
IFBench
41.0%
SciCode
99.2%
MATH 500
85.3%
MMLU Pro
88.3
Math
80.8%
LiveCodeBench
30.4
Intelligence
37.1%
Terminal-Bench Hard
114
Speed (tok/s)
7.5
TTFA (s)
7.5
TTFT (s)
Resources & Links
proprietary, Proprietary - API access only
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Data sourced from official provider APIs and documentation
Last updated: Aug 8, 2026
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