gpt-5-1
Developer: OpenAI
Also known as
GPT-5.1 by OpenAI is available through 202 API providers on LMSpeed. Compare API pricing from $0.010 to $6501642.50 per million input tokens across providers. In speed benchmarks, the fastest provider reaches 179 tok/s.
Compare GPT-5.1 API pricing across 202 providers. Input prices range from $0.010 to $6501642.50 per million input. 素墨API offers the lowest rate at $0.010/M.
| Provider | Model Variant | Input ($/M) | Output ($/M) | Speed (t/s) |
|---|---|---|---|---|
| 素墨API | gpt-5.1 | $0.010 | $0.010 | — |
| 10dian-API | gpt-5.1 | $0.010 | $0.010 | — |
 哈基米API | gpt-5.1 | $0.020 | $0.020 | — |
| CookingAI | gpt-5.1 | $0.030 | $0.030 | — |
| 紫脑喵 | gpt-5.1 | $0.030 | $0.030 | — |
| CookingAI | gpt-5.1-high | $0.050 | $0.050 | — |
| 紫脑喵 | gpt-5.1-chat-2025-11-13 | $0.050 | $0.050 | — |
| 紫脑喵 | gpt-5.1-high | $0.050 | $0.050 | — |
 星见雅 API | gpt-5.1 | $0.100 | $0.800 | — |
 GLM BigModel Relay | gpt-5.1 | $0.125 | $1.00 | — |
| GLM BigModel Relay | gpt-5.1-high | $0.125 | $1.00 | — |
 VVCode | gpt-5.1 | $0.125 | $1.00 | — |
 MonkingAI | gpt-5.1 | $0.200 | $1.60 | — |
| Yunchu API | gpt-5.1 | $0.240 | $1.92 | — |
| 人人 API | gpt-5.1 | $0.300 | $2.40 | — |
| 人人 API | gpt-5.1-chat-latest | $0.300 | $2.40 | — |
| 人人 API | gpt-5.1-high | $0.300 | $2.40 | — |
| 人人 API | gpt-5.1-low | $0.300 | $2.40 | — |
| 人人 API | gpt-5.1-medium | $0.300 | $2.40 | — |
| 人人 API | gpt-5.1-minimal | $0.300 | $2.40 | — |
Pricing data from provider public APIs
Compare speed and latency performance across all API providers.
Showing 1-5 of 5 providers
Latest benchmark results measuring API response speed and first-token latency.
| Time | Model | Speed | Latency |
|---|---|---|---|
| 03/28/2026, 14:32 | gpt-5.1 | 139.34 tok/s | 1.86s |
| 03/28/2026, 14:32 | gpt-5.1 | 138.53 tok/s | 1.45s |
| 03/23/2026, 09:20 | gpt-5.1 | 186.76 tok/s | 3.42s |
| 03/23/2026, 09:20 | gpt-5.1 | 125.46 tok/s | 2.99s |
| 03/23/2026, 09:20 | gpt-5.1 | 132.38 tok/s | 3.28s |
| 03/23/2026, 09:20 | gpt-5.1 | 151.97 tok/s | 2.71s |
| 03/23/2026, 09:20 | gpt-5.1 | 105.56 tok/s | 2.88s |
| 03/17/2026, 10:21 | gpt-5.1 | 141.74 tok/s | 4.45s |
| 03/17/2026, 10:21 | gpt-5.1 | 124.68 tok/s | 2.65s |
| 03/17/2026, 10:21 | gpt-5.1 | 190.50 tok/s | 4.86s |
| 03/17/2026, 10:21 | gpt-5.1 | 40.20 tok/s | 3.88s |
| 03/17/2026, 10:21 | gpt-5.1 | 170.90 tok/s | 1.87s |
| 03/05/2026, 03:54 | gpt-5.1 | 92.17 tok/s | 2.47s |
| 03/05/2026, 03:54 | gpt-5.1 | 100.46 tok/s | 1.57s |
| 03/05/2026, 03:54 | gpt-5.1 | 116.35 tok/s | 1.66s |
| 03/05/2026, 03:54 | gpt-5.1 | 86.39 tok/s | 1.63s |
| 03/05/2026, 03:54 | gpt-5.1 | 84.14 tok/s | 1.98s |
| 02/16/2026, 03:14 | gpt-5.1 | 209.33 tok/s | 5.14s |
| 02/16/2026, 03:14 | gpt-5.1 | 131.44 tok/s | 5.75s |
| 02/16/2026, 03:14 | gpt-5.1 | 247.07 tok/s | 6.26s |
