LLM
GPT-5.1
by OpenAI
Prices last updated October 4, 2026
GPT-5.1, a proprietary OpenAI model available via OpenRouter.
Context
400k
Providers
3
Cheapest Input
$1.25
Function Calling Streaming Chat / Instruct
Price Comparison
Compare pricing across 3 providers serving GPT-5.1
| Provider | Input $/1M | Output $/1M | Context | Speed | TTFT | Status |
|---|---|---|---|---|---|---|
| OP OpenRouter | $1.25 ● | $10.00 | 400k | — | — | Live |
| OP OpenAI | $1.25 ● | $10.00 | — | — | — | Live |
| WA WaveSpeed AI | $1.25 ● | $10.00 | 400k | — | — | Live |
● Cheapest ● Fastest Prices in USD per 1M tokens