AI model · OpenAI
o3
Model ID: openai/o3
- Input
- $2 per 1M tokens
- Output
- $8 per 1M tokens
- Context
- 200K tokens at once
- Max output
- 100K tokens per reply
- Released
- 16 Apr 2025 OpenAI
What it can do
- YesReasoning
- YesTool calling
- YesImage input
- NoOpen weights
- NoFree to use
Takes image, text, file; gives text.
How its listing describes it
o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks.
Sources
- OpenAI: o3 on OpenRouter — read 2 Oct 2026