GPT-6.1 Terra Ranks Eighth on Agent Arena With 10.6% Score
The model completed 50.3% of Terminal-Bench 4.0 tasks at maximum reasoning effort, compared with 21.5% for GPT-5.6 Terra.

OpenAI’s GPT-6.1 Terra placed eighth on Agent Arena’s overall leaderboard, posting a 10.6% net-improvement score in a ranking of AI models’ work performed for users.
Agent Arena evaluates models on work they carry out on a user’s behalf, rather than only on their answers to questions. The leaderboard lists Terra’s Max configuration in eighth place overall.
OpenAI released GPT-6.1 Terra on Oct. 26 for visual reasoning, computer use and writing. On Terminal-Bench 4.0, Terra completed 50.3% of tasks at maximum reasoning effort, compared with 21.5% for GPT-5.6 Terra.
TokenPost previously covered GPT-6.1 Terra’s release and pricing.