Model catalog profile

OpenAI: GPT-5.1 Chat | pricing profile

Start with OpenAI: GPT-5.1 Chat input $1.25, output $10, context 128,000, and provider OpenAI, then decide whether this pricing path is worth exploring further.

Provider

OpenAI

62 models in catalog

Context

128,000

global model route

Input

$1.25

USD / 1M tokens

Output

$10

USD / 1M tokens

What this page answers

GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...

OpenAI · openai/gpt-5.1-chat
text+image+file->text · global model route
128,000 context · $1.25 input

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supports max_completion_tokens
supports max_tokens
supports response_format
supports seed
supports structured_outputs

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