o3
active Active
o3 is an active OpenAI LLM API model. As of May 24, 2026 it has no announced deprecation or retirement date.
Lifecycle & specs
- Provider
- OpenAI
- API model ID
o3- Status
- active
- Released
- Apr 16, 2025
- Replacement
openai/gpt-5- Context window
- 200,000 tokens
- Input price
- $2.00 / 1M tokens
- Output price
- $8.00 / 1M tokens
- Knowledge cutoff
- 2024-06-30
- Pricing checked
- May 22, 2026
Source: official OpenAI documentation ↗ · ✓ verified