GPT-5.1 pricing
Text model by OpenAI. Sold by 2 providers.
Deprecated on 1 Apr 2027
Prices
| Sold by | Price line | Price | Source |
|---|---|---|---|
| OpenAI | per 1M input tokens | $1.25 | Source |
| per 1M cached input tokens | $0.125 | ||
| per 1M output tokens | $10.00 | ||
| OpenRouterreseller | per 1M input tokens | $1.25 | Source |
| per 1M cached input tokens | $0.125 | ||
| per 1M output tokens | $10.00 |
Limits
- Context window
- 400K tokens
- Max output
- 128K tokens
- Released
- 13 Nov 2025
- Deprecated
- 1 Apr 2027
- Open weights
- No