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OpenAI: GPT-5.2 Chat

GPT-5.2 Chat (AKA Instant) is the fast, lightweight member of the 5.2 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...

Image
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Specification
Model ID
openai/gpt-5.2-chat
Modality
Text+image+file >text
Context
128K tokens
Input
$1.75/1M
Output
$14.00/1M
Web search
$10000.00/1M
Updated
Sep 20, 2026
Scores
Capabilities
  • Supports tool calling
  • Supports vision inputs
  • Supports long-context workflows
  • Lighter reasoning profile

Input and output

Accepts File, Image, Text inputs. Returns Text outputs.

Supported parameters

max_completion_tokensresponse_formatseedstructured_outputstool_choicetools

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