ZenMux (Reseller)
GPT-5.1 Chat Pricing
API pricing for GPT-5.1 Chat via ZenMux. Input tokens cost $1.25/1M, output tokens cost $10/1M with 128K context window.
Last updated:
ToolsVision
Input Cost
$1.25
per 1M tokens
Output Cost
$10
per 1M tokens
Context Window
128K
tokens
Cost Calculator
Estimated Cost:
$0.00
Model Details
Reseller
ZenMux
Model ID
openai/gpt-5.1-chat
Context Window
128K tokens
Max Output
64000 tokens
Cache Read Cost
$0.13/1M
Sources