OpenAI
OpenAI o3-pro (2025-06-10)
O-series reasoning model for hard analysis, math, coding, and planning
Model facts
- Context window
- 2K tokens
- Maximum output
- 1K tokens
- Cheapest paid input
- $22 per 1M tokens
- Cheapest paid output
- $88 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, structured output, text.
Observed price history
- 2026-08-24: $22 input / $88 output per 1M tokens
API providers
- NanoGPT — model id openai/o3-pro-2025-06-10; $22 input / $88 output per 1M tokens; provider documentation