OpenCode Zen (Reseller)
GPT-5.1 Codex Pricing
API pricing for GPT-5.1 Codex via OpenCode Zen. Input tokens cost $1.07/1M, output tokens cost $8.5/1M with 400K context window.
Last updated:
ReasoningToolsVision
Input Cost
$1.07
per 1M tokens
Output Cost
$8.5
per 1M tokens
Context Window
400K
tokens
Cost Calculator
Estimated Cost:
$0.00
Model Details
Reseller
OpenCode Zen
Model ID
gpt-5.1-codex
Context Window
400K tokens
Max Output
128000 tokens
Cache Read Cost
$0.107/1M
Sources