GPT-5.6 Terra

GPT-5.6 Terra

Developer	OpenAI
Release date	July 9, 2026
Family	GPT
Generation	GPT-5.6
Level
Context window	1.1M tokens
Max output	128K tokens
Input	File, image, text
Output	Text
Knowledge cutoff	2026-02-16
Weights	Closed
Successor	GPT-6.1 Terra
Website	openai.com
Links	Docs

Part of a series on

input: $2.00
cached: $0.20
output: $12.00
cache write: $2.50
Context: 1.1Mtokens
Released: 4mo ago

Specifications

Model

Developer: OpenAI
Family: GPT GPT-5.6
Type: Language model
Released: July 9, 2026
Model ID: openai/gpt-5.6-terra

Capabilities

Input → output: File, image, text → Text
Max output: 128K tokens
Tokenizer: GPT
Knowledge cutoff: 2026-02-16

Weights

Openness: Closed

Sources:models.devOpenRouter

Metadata synced Nov 3, 2026, 11:17 PM UTC

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