GPT-5.1
by OpenAI · openai/gpt-5.1
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...
- Input / 1M tokens
- $1.25
- Output / 1M tokens
- $10.00
- Context
- 400K
Specs
| Input price | $1.25 / 1M tokens |
|---|---|
| Output price | $10.00 / 1M tokens |
| Cached input | $0.125 / 1M tokens |
| Context window | 400K tokens |
| Max output | 128K tokens |
| Reads | image, text, file |
| Writes | text |
| Tool calling | Yes |
| Reasoning | Yes |
| Listed | Nov 13, 2025 |
List prices in USD, updated Oct 30, 2026. Providers may charge differently.
Providers
5 providers serve this model, as of Oct 30, 2026, 18:12 UTC.
| Provider | Context | Max output | Input / 1M | Output / 1M | Cache read / 1M | Uptime (30 min) | Latency (median) | Throughput (median) | Supports | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| OpenAI | 400K | 128K | $0.625 | $5.00 | $0.0625 | — | 996 ms | 53 tok/s | Normal | |
| Azure | 400K | 128K | $1.25 | $10.00 | $0.13 | 100% | 2.58 s | 50 tok/s | Normal | |
| OpenAI | 400K | 128K | $1.25 | $10.00 | $0.125 | 100% | 1.29 s | 59 tok/s | Normal | |
| Azure | 400K | 128K | $1.38 | $11.00 | $0.143 | — | — | — | Normal | |
| OpenAI | 400K | 128K | $2.50 | $20.00 | $0.25 | — | — | — | Normal |
"Cheapest" is the lowest input plus output price; "Fastest" the highest median throughput. Columns empty for every provider are not shown.
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