o3 is OpenAI's reasoning model release for complex tasks across text, code, and images. OpenAI's API documentation describes it as well-rounded and powerful across domains, with a 200,000-token context window, text and image input, text output, and strengths in math, science, coding, technical writing, instruction following, and visual reasoning.
Pricing
Model profile · Current snapshot
Input / 1M
$2.00
Output / 1M
$8.00
Blended / 1M
$3.50
Output TPS
128
TTFT (s)
5.51
Model Intelligence
Context window
200,000 tokens
Arena ranking
31
Benchmarkable
Yes
Model level
release
Intelligence Index
31.1
Math Index
88.3
MMLU Pro
0.85
GPQA
0.83
HLE
0.2
LiveCodeBench
0.81
SciCode
0.41
MATH-500
0.99
AIME
0.9
AIME 2025
0.88
IFBench
0.71
LCR
0.73
TerminalBench Hard
0.37
TAU2
0.81
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