gpt-5-1-codex
Developer: OpenAI
Also known as
GPT-5.1 Codex by OpenAI is available through 97 API providers on LMSpeed. Compare API pricing from $0.010 to $6501642.50 per million input tokens across providers.
Compare GPT-5.1 Codex API pricing across 97 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-codex | $0.010 | $0.010 | — |
| 10dian-API | gpt-5.1-codex | $0.010 | $0.010 | — |
| CookingAI | gpt-5.1-codex | $0.030 | $0.030 | — |
| 紫脑喵 | gpt-5.1-codex | $0.030 | $0.030 | — |
| 91VIP API | gpt-5.1-codex | $0.100 | $0.100 | — |
 GLM BigModel Relay | gpt-5.1-codex | $0.125 | $1.00 | — |
| GLM BigModel Relay | gpt-5.1-codex-high | $0.125 | $1.00 | — |
 MonkingAI | gpt-5.1-codex | $0.200 | $1.60 | — |
| Yunchu API | gpt-5.1-codex | $0.240 | $1.92 | — |
| 人人 API | gpt-5.1-codex | $0.300 | $2.40 | — |
| 人人 API | gpt-5.1-codex-high | $0.300 | $2.40 | — |
| 人人 API | gpt-5.1-codex-medium | $0.300 | $2.40 | — |
| 蜜音AI | gpt-5.1-codex | $0.375 | $3.00 | — |
| 玄黄 | gpt-5.1-codex | $0.625 | $5.00 | — |
| llm-2-api | gpt-5.1-codex | $0.800 | $6.40 | — |
| Codex API | gpt-5.1-codex-openai-compact | $1.00 | $8.00 | — |
 OpenRouter Fans | gpt-5.1-codex | $1.07 | $8.56 | — |
| OpenRouter Fans | openai/gpt-5.1-codex | $1.10 | $9.00 | — |
 KKSJ-AI | gpt-5.1-codex | $1.13 | $9.00 | — |
| KKSJ-AI | gpt-5.1-codex-2025-11-13 | $1.13 | $9.00 | — |
Pricing data from provider public APIs
Latest benchmark results measuring API response speed and first-token latency.
