GPT 5.6 Terra

Details

GPT-5.6 Terra delivers strong performance at a lower price than Sol, with a 1M context window and optional reasoning. Sonnet-equivalent OpenAI option for Basic+ users.

Context window

1.05M tokens

Max output

128K tokens

Knowledge cutoff

February 16, 2026

Provider

OpenAI GPT

Pricing

Premium

PDF support

Yes

Zero Data Retention

Yes

Added

July 10, 2026