gpt-5.1-chat-latest
by OpenAI — Price updated 2026-04-04
Pricing ($/1M tokens)
Input
$1.25
Output
$10.00
Cache Read
$0.12
Specifications
Context Window
128,000
Max Output
16,384
Input
text
Output
text
Reasoning
About This Model
gpt-5.1-chat-latest is a mid-range language model from OpenAI.
It supports a context window of 128K tokens with up to 16K output tokens.
Key capabilities include extended reasoning.
With input pricing at $1.25/1M tokens, it sits in the mid-range of available models.
OpenAI offers 87 models in total, spanning different price points and capability levels.