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GPT-6.1 Terra

Simon Willison · Oct 26, 2026 · Product Launches

OpenAI launches GPT-6.1 Terra, a mid-tier model emphasizing visual reasoning and computer use

“In the case of GPT-6.1 Terra, I'd say Terra is probably better than Astra and Sol at technical communication, similar on vision and computer use (but much faster!), and a bit worse on most other things.”

OpenAI released GPT-6.1 Terra, a mid-range model positioned between Luna and Sol, with strengths in visual reasoning, computer use, and technical communication. Priced at $1/million input and $5/million output tokens — roughly half the cost of GPT-6.1 Sol — it occupies a similar market position to Anthropic's Sonnet tier. The computer use focus at a mid-tier price point is strategically notable for agentic and automation workloads.

openai gpt-6.1 computer-use visual-reasoning llm-pricing mid-tier-model

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