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GPT 6.1 Terra

GPT 6.1 Terra is a high-throughput, cost-balanced partner reasoning model from OpenAI for general enterprise workloads and high-volume automation.

Supported regions
Model ID	`gpt-6.1-terra`
Launch stage	Preview
Supported inputs & outputs	Inputs: Text, Image Outputs: Text
Token limits	Total context window: 1,050,000 tokens Maximum input tokens: 922,000 tokens Maximum output tokens: 128,000 tokens
Capabilities	Supported Responses API Preview feature Function calling Preview feature Structured outputs Preview feature Configurable reasoning effort Preview feature Conversation compaction Preview feature Not supported Chat Completions API Preview feature Batch API Preview feature
Usage types	Supported Standard pay-as-you-go Preview feature Fixed quota Preview feature Not supported Provisioned Throughput Preview feature
Versions	`gpt-6.1-terra` Launch stage: Preview Release date: November 2026
Supported regions	Model availability	Global `global endpoint` United States `us multi-region`
Quota limits	global endpoint: Context length: 1,050,000 us multi-region: Context length: 1,050,000
Pricing	See Pricing.