gpt-5-1-thinking
Developer: OpenAI
Also known as
GPT-5.1 Thinking by OpenAI is available through 16 API providers on LMSpeed. Compare API pricing from $1.13 to $75.00 per million input tokens across providers.
Compare GPT-5.1 Thinking API pricing across 16 providers. Input prices range from $1.13 to $75.00 per million input. KKSJ-AI offers the lowest rate at $1.13/M.
| Provider | Model Variant | Input ($/M) | Output ($/M) | Speed (t/s) |
|---|---|---|---|---|
 KKSJ-AI | gpt-5.1-thinking-all | $1.13 | $9.00 | — |
| AAAI | gpt-5.1-thinking-all | $1.25 | $10.00 | — |
 柏拉图AI | gpt-5.1-thinking | $1.25 | $10.00 | — |
| 柏拉图AI | gpt-5.1-thinking-all | $1.25 | $10.00 | — |
 UnifyLLM | gpt-5.1-thinking | $1.25 | $10.00 | — |
 V-API | gpt-5.1-thinking-all | $1.25 | $10.00 | — |
 毫秒API | gpt-5.1-thinking | $1.25 | $10.00 | — |
| 毫秒API | gpt-5.1-thinking-all | $1.25 | $10.00 | — |
| gpt-5.1-thinking | $1.25 | $10.00 | — | |
| gpt-5.1-thinking-all | $1.25 | $10.00 | — | |
| 钱多多 API | gpt-5.1-thinking-all | $1.25 | $10.00 | — |
 艾可API | gpt-5.1-thinking-all | $1.25 | $10.00 | — |
| PoloAPI | gpt-5.1-thinking-all | $1.25 | $10.00 | — |
| 哈基米API站 | gpt-5.1-thinking | $8.00 | $8.00 | — |
 SanShui API | gpt-5.1-thinking | $75.00 | $600.00 | — |
| SanShui API | gpt-5.1-thinking-all | $75.00 | $150.00 | — |
Pricing data from provider public APIs
Latest benchmark results measuring API response speed and first-token latency.
