Unverified50% confidenceBenchmarkExact time
OpenAI's internal high-difficulty fact test shows that 5.6 Terra's error rate at low reasoning effort was as high as 53.6%, while GPT-6.1 Terra cut the error rate to 16.7%, and further reduced it to 4.3% at maximum reasoning.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
11/1/2026
First Seen
Valid until: 11/15/2026
Sources
GPT-6.1 Terra Launches at Rock-Bottom Price: Do Flagship Work for a Tenth of the Cost
bilibili东海与西海10/27/2026
Related Entities
Related Claims
UnverifiedAccording to data published by OpenAI, on the Agents Last Exam benchmark, at medium reasoning effort, GPT-6.1 Terra scored 57.6% and GPT-5.6 Terra scored 42.6%, an improvement of 15 percentage points.76% similarUnverifiedAccording to official chart data, GPT-6.1 Terra's coding score was 50.3% at maximum effort and 47% at low effort.73% similarUnverifiedGPT-6.1 Terra's score on the scientific programming test Terminal Bench Science exceeds that of the higher-positioned Soul and is less than 5 percentage points below Claude Opus 5.5, while its estimated cost is less than one-fifth of the latter's.69% similarUnverifiedIn the long-text comprehension and reasoning test (50 papers and "Death's End" from the Three-Body trilogy, 18 questions), GPT 6.1 Terra scored 94, getting only one question about the novel's content wrong.68% similarUnverifiedIn a third-party Artificial Analysis evaluation, GPT-6.1 Terra's composite intelligence index was 48, 4 points lower than GPT-6.1 Soul.68% similar
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