o3
OpenAI · Released Apr 2025
OpenAI's frontier reasoning model. Received an 80% price cut in June 2025 alongside the o3-pro launch.
- Strengths
- Strong dedicated step-by-step reasoning.
- Best for
- Math, logic and multi-step problem solving.
- Limitations
- Reasoning-focused; the GPT-5 line now covers most of its ground.
Input / 1M
$2.00
Output / 1M
$8.00
Cached input / 1M
$0.5
Context window
200K
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in — out —
- 90d
- in — out —
- 1y
- in — out —
- Since launch
- in decreased 80.0% out decreased 80.0%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 10 Jun 2025 | $2.00 | $8.00 | $0.5 | 80% price cut alongside o3-pro launch | openai.com/api/pricing |
| 16 Apr 2025 | $10.00 | $40.00 | $2.50 | Launch pricing | openai.com/api/pricing |