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Models / OpenAI / GPT-5.1 Chat

OpenAI · gpt-codex

GPT-5.1 Chat

Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations

$1.25 in · $10.00 out

per 1M tokens · provider rate closest to the median. No first-party OpenAI price was listed. The reference price is Merge Gateway's rate, the provider closest to the median.

Context
128,000
Max output
16,384
Cache read
$0.13
Cache write
—
Reasoning
Yes
Tool calls
Yes
Structured output
Yes
Vision
Yes
Open weights
No
License
—
Released
Nov 13, 2025
Updated in source
Nov 13, 2025
Knowledge
2024-09-30
Providers
2

What this model costs per month

Prices are USD per 1M tokens. A month is 30 days. Cache hits use the cache-read rate when the model has one; otherwise the cache field is ignored.

monthly = requests/day × 30 × (input tokens × (1 − cache hit) × input price + input tokens × cache hit × cache-read price + output tokens × output price) ÷ 1,000,000

Providers

Base rates from Models.dev. One row per provider.
ProviderInputOutputCache readCache writeStatus
Merge Gatewayreference$1.25$10.00$0.13——
OrcaRouter$1.25$10.00$0.13——