GPT-6.1 Terra benchmarks: 60.0% on Agents' Last Exam at $1.01 per task vs Astra's $7.24

aipulsedaily @aipulseda1lyOriginally posted 2026.10.27

Open original on X

OpenAI just dropped GPT-6.1 Terra at $1 in and $5 out. Half the price of GPT-6.1 Sol and Claude Sonnet 5.5. On Agents' Last Exam, a computer use test, it scores 60.0% at max effort. GPT-6 Astra scores 59.3%. Terra does it for $1.01 a task, Astra costs $7.24. Claude Opus 5.5 still scores highest at 63.2%, but it costs $8.82 a task. The catch is coding. Terra hits 50.3% on Terminal-Bench 4.0. Sonnet 5.5 hits 70.6%. Its live now in ChatGPT and Codex for Plus, Pro, Enterprise and Edu, and in the API.