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OpenAI

o3

A high-performance language model developed by OpenAI. Explore specifications, capabilities, and pricing.

Model ID
openai/o3

Pricing

Input Price$2.00 / 1M tokens
Output Price$8.00 / 1M tokens
Cache Read Price$5.50 / 1M tokens
Blended Price$15.50 / 1M tokens

Specifications

Context Window
200K tokens
Max Output
100K tokens
Knowledge Cutoff
June 1, 2024
Release Date
April 16, 2025

Capabilities

Input Modalities
Text Image
Output Modalities
Text
Features
Streaming Function calling Structured outputs Fine-tuning Predicted outputs

Quality Comparison

A relative ranking based on aggregated benchmark intelligence scores.

GPT 5.5
60
Claude Opus 4.7
57
GPT 5.4
57
Gemini 3.1 Pro Preview
57
GPT 5.3 Codex
54
Grok 4.3
53
Claude Sonnet 4.6
52
Claude Opus 4.6
52
This model currently does not have an established intelligence score.