GPT-6.1 Terra

GPT-6.1 Terra

Developer	OpenAI
Listed	October 26, 2026
Family	GPT
Generation	GPT-6.1
Level
Context window	1.1M tokens
Max output	128K tokens
Input	File, image, text
Output	Text
Knowledge cutoff	2026-06-01
Weights	Closed
Predecessor	GPT-5.6 Terra
Website	openai.com

Part of a series on

input: $1.00
cached: $0.05
output: $5.00
cache write: $1.25
Context: 1.1Mtokens
Listed: 2w ago

Specifications

Model

Developer: OpenAI
Family: GPT GPT-6.1
Type: Language model
Listed on OpenRouter: October 26, 2026
Model ID: openai/gpt-6.1-terra

Capabilities

Input → output: File, image, text → Text
Max output: 128K tokens
Tokenizer: GPT
Knowledge cutoff: 2026-06-01

Weights

Openness: Closed

Sources:models.devOpenRouter

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

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