OpenRouter (Reseller)
GPT-5.1 Pricing
API pricing for GPT-5.1 via OpenRouter. Input tokens cost $1.25/1M, output tokens cost $10/1M with 400K context window.
Last updated:
ReasoningToolsVision
Input Cost
$1.25
per 1M tokens
Output Cost
$10
per 1M tokens
Context Window
400K
tokens
Cost Calculator
Estimated Cost:
$0.00
Model Details
Reseller
OpenRouter
Model ID
openai/gpt-5.1
Context Window
400K tokens
Max Output
128000 tokens
Cache Read Cost
$0.125/1M
Sources