GPT-6.1 Terra: release report
OpenAI released GPT-6.1 Terra on October 26, 2026. Specs and price, with more added as evidence arrives.
The release
OpenAI released GPT-6.1 Terra on October 26, 2026. Read the announcement.
- Takes unknown. Returns unknown.
- Not a reasoning model.
- Closed weights.
OpenAI's release before this was GPT-6.1 Sol on September 29, 2026, 27 days earlier. Over the past year it has shipped a model every 12 days on median (24 releases).
Price
$1.00 per million input tokens and $5.00 per million output tokens on OpenAI's API. Cached input is $0.050. GPT-5.6 Terra, the model it follows, costs $2.00 and $12.00.
Each section was written on the date shown and is not revised afterwards. Specifications from Models.dev, prices from provider listings, capability scores from Epoch AI under CC BY 4.0, chess and sudoku results from Model Cadence Bench.