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OpenAI

GPT-6.1 Terra

GPT-6.1 Terra is a OpenAI model with 1.05M context, $1 in / $5 out per million tokens, last verified November 3, 2026. Open weights: no. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.

OpenAI's fast GPT-6.1 tier for visual reasoning, computer use and natural writing, priced below Sol.

Recorded profile verification November 3, 2026Individual provider fields may change

AI model specification details
SpecificationGPT-6.1 Terra
ProviderOpenAI
TierBalanced
Context window1.05M
Max output128K
Input / 1M tokens$1
Output / 1M tokens$5
WeightsClosed
ParametersNot verifiedUnverified
Reasoning levelsnone, low, medium, high, xhigh, max
Modalitiestext, image
API model idgpt-6.1-terra
ReleasedOctober 26, 2026

Pricing tiers: Standard rates are $1 input/$5 output per million tokens; cached input $0.05 and cache writes $1.25 (30-minute retention) or $2.50 (12-hour). Prompts over 272K input tokens price the full request at 2x input/cache and 1.5x output. Batch and Flex are 50% below Standard; Fast mode is 2x Standard; regional processing adds 10% where available.

Best for

  • Computer use and screen workflows
  • Visual reasoning
  • High-volume drafting

Watch out

Tool calling requires the Responses API. The 1,050,000-token window caps input at 922,000 tokens, and requests over 272K input tokens move to higher long-context rates. Audio and video input are unsupported. Publisher computer-use results are not independent public-board observations.

History

GPT-6.1 Terra timeline

Release and status events for this model that passed two-source verification — dated, sourced, and linked.

Source receipts

Catalog figures for this model were checked against the following sources.

Common questions

GPT-6.1 Terra

Answered from the verified figures on this page rather than general guidance.

How much does GPT-6.1 Terra cost per million tokens?
GPT-6.1 Terra lists base rates of $1 per million input tokens and $5 per million output tokens. Estimate both input and output token volume and any additional charges for your workload. Standard rates are $1 input/$5 output per million tokens; cached input $0.05 and cache writes $1.25 (30-minute retention) or $2.50 (12-hour). Prompts over 272K input tokens price the full request at 2x input/cache and 1.5x output. Batch and Flex are 50% below Standard; Fast mode is 2x Standard; regional processing adds 10% where available.
What is GPT-6.1 Terra's context window?
GPT-6.1 Terra accepts about 1.05M tokens of context. That only matters if you routinely send very long documents, large codebases, or multi-turn histories that approach that limit.
What is GPT-6.1 Terra best for?
GPT-6.1 Terra is a balanced tier from OpenAI. It suits computer use and screen workflows, visual reasoning, high-volume drafting. Tool calling requires the Responses API. The 1,050,000-token window caps input at 922,000 tokens, and requests over 272K input tokens move to higher long-context rates. Audio and video input are unsupported. Publisher computer-use results are not independent public-board observations.
Model comparison catalogBenchmark library