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Week 45, 2026 standings1 Claude Opus 5.5 962 Gemini 4 Carbon 953 GPT-6 Astra 934 GPT-6.1 Sol 935 Claude Sonnet 5.5 926 Gemini 4 Argon 917 Claude Fable 5.1 908 Muse Wonder 899 Kimi K3.1 Pro 8810 Claude Haiku 5.5 87Week 45, 2026 standings1 Claude Opus 5.5 962 Gemini 4 Carbon 953 GPT-6 Astra 934 GPT-6.1 Sol 935 Claude Sonnet 5.5 926 Gemini 4 Argon 917 Claude Fable 5.1 908 Muse Wonder 899 Kimi K3.1 Pro 8810 Claude Haiku 5.5 87

OpenAI · Language model

GPT-6.1 Terra

OpenAI's new mid-tier model, between GPT-6 Luna and GPT-6.1 Sol. It replaces GPT-5.6 Terra at half the price and is pitched at computer use: reading the screen and acting across apps.

#11Power Rankings #10Coding #2Best Value

MakerOpenAI

ReleasedOctober 26, 2026

API price (per 1M tokens)$1 in / $5 out

Open weightsNo

Best for

Computer-use and browser agents
Everyday office work in ChatGPT and Codex
Apps that need more than Luna but can't justify Sol

Strengths

$1 / $5, half the price of GPT-6.1 Sol
Available in ChatGPT (Plus, Pro, Enterprise, Edu), Codex and the API from day one
About a 1.1M-token context window, per OpenRouter's listing

Watch out for

OpenAI says it matches GPT-6 Astra at a tenth of the price; Artificial Analysis puts it clearly below Sol, so treat that claim with care
Its best scores need max effort, which bills many more output tokens

Ranking history

Edition	Power Rankings	Coding	Best Value	Open-Weight Watch	Image Generation	Video Generation
Week 45, 2026	#11 (86)	#10 (84)	#2 (92)	—	—	—