#model selection
3 total
News
7 minGPT-6.1 Terra lands in the API: the model card, official pricing, and the GPT-6 family price table
The official changelog brought GPT-6.1 Terra into the API on 2026-10-26: a 1.05M context window, 922K max input, and $1/$5 short-context pricing with 5% cached reads. Card specs, family pricing, and the Codex 500K window.
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7 minGPT-6.1 Terra announced and live in GitHub Copilot: the everyday agentic coding tier
Verified 2026-10-27: OpenAI announced Introducing GPT-6.1 Terra on 10-26, and GitHub's changelog shipped it GA in Copilot the same day. Only what loadable sources actually say.
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4 minGPT-5.6 Model Selection Guide (2026): Sol, Terra, or Luna?
How to pick between GPT-5.6 Sol / Terra / Luna without wasting money or breaking quality: a workload-first framework, the reasoning.effort dial, cost math, and the o-series boundary.
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