API pricing, context limits, and cost analysis for GPT-5.1.
Compare GPT-5.1 against 16 other models with our deterministic cost calculator. Factor in caching, batch API, context limits, and monthly volume.
Open Cost Calculator →| Model | Provider | Input / 1M | Output / 1M | Context |
|---|---|---|---|---|
| GPT-5.1 (Current) | OpenAI | $1.25 | $10.00 | 128,000 |
| Claude Opus 4.6 | Anthropic | $5.00 | $25.00 | 200,000 |
| Gemini 3.1 Pro | $2.00 | $12.00 | 1,000,000 | |
| DeepSeek R1 | DeepSeek | $0.55 | $2.19 | 128,000 |
| Llama 4 Maverick | Meta | $0.20 | $0.60 | 128,000 |
| Mistral Large 3 | Mistral AI | $0.50 | $1.50 | 128,000 |
| Qwen 3.5-Plus | Qwen | $0.40 | $2.40 | 262,144 |