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o3

OpenAI· released 16 Apr 2025

openai/o3

Input / 1M tokens: $2
Output / 1M tokens: $8

Context window200K tokens

Longest answer: 100K tokens

reads imagereads textreads filetool callingvisionreasoning

See it on openrouter.ai

About

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks.

Details

Lab: OpenAIopenrouter.ai · 3 Oct 2026
Context: 200Kopenrouter.ai · 3 Oct 2026
Input price: $2 / 1Mopenrouter.ai · 3 Oct 2026
Output price: $8 / 1Mopenrouter.ai · 3 Oct 2026
Max output: 100,000 tokensopenrouter.ai · 3 Oct 2026
Inputs: image, text, fileopenrouter.ai · 3 Oct 2026
Open weights: Noopenrouter.ai · 3 Oct 2026

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Sources

openrouter.ai/openai/o3· checked 3 Oct 2026