GPT-5 Chat

Retired

openai/gpt-5-chat-latest

Chat-tuned GPT model for conversational assistance, writing, and tool workflows

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Context window: 128K
Input: Image · Text
Output: Text
Released: 2025-08-07

Max output: 16K
Knowledge cutoff: 2024-09-30
Weights: Closed
Capabilities: Attachments, Reasoning, Structured, Temperature

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ModelRegistry · Catalog updated 2026-10-01