GPT-5.2 Chat

Deprecated

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...

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Context window: 128K
Input: Document · Image · Text
Output: Text
Released: 2025-12-10

Max output: 16K
Weights: Closed
Capabilities: Tool call, Structured

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ModelRegistry · Catalog updated 2026-09-29