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OpenAI Introduces GPT-6.1 Terra

OpenAI has announced the introduction of a new technology product named GPT-6.1 Terra.

By Xentir Media Newsroom · Editorial standards by Jomon · November 02, 2026 · 1 min read
WHAT YOU NEED TO KNOW
  • OpenAI introduced GPT-6.1 Terra.
  • The announcement was published on October 26, 2026.
EPOCH CAPABILITIES INDEX (ECI)GPT-6 Astra169Claude Opus 5.5169GPT-6.1 Sol168GPT-6.1 Terra168Claude Sonnet 5.5167Claude Fable 5.1166Source: Epoch AI Benchmarking Hub - CC BY 4.0 - as of 2026-11-02

OpenAI published an announcement introducing GPT-6.1 Terra.

The publication occurred on October 26, 2026.

OpenAI released the text as a confirmed summary excerpt rather than the full announcement.

SOURCES
Introducing GPT-6.1 Terra — OpenAI
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IN THE AI INDEX

Models named in this story, with their current rank on the index:

Claude Sonnet 5.5 · #5 overallClaude Fable 5.1 · #6 overallClaude Opus 5.5 · #2 overallGPT-6.1 Terra · #3 overallSee the full AI Model Rankings →
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