OpenAI
OpenAI o3
O-series reasoning model for hard analysis, math, coding, and planning
Model facts
- Context window
- 2K tokens
- Maximum output
- 1K tokens
- Cheapest paid input
- $2 per 1M tokens
- Cheapest paid output
- $8 per 1M tokens
- Open weights
- no
- Providers
- 3
Capabilities and modalities
reasoning, tool calling, structured output, attachments, text, image.
Observed price history
- 2026-08-24: $2 input / $8 output per 1M tokens
API providers
- DigitalOcean — model id openai-o3; $2 input / $8 output per 1M tokens; provider documentation
- Helicone — model id o3; $2 input / $8 output per 1M tokens; provider documentation
- NanoGPT — model id openai/o3; $2 input / $8 output per 1M tokens; provider documentation