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GPT-6.1 Terra: price, context window and licence

Priced at exactly half of GPT-6.1 Sol on every line and a tenth of GPT-6 Astra's flagship rate.

Where these figures come from

Taken from the OpenRouter model registry, which lists what providers charge per token, and converted to a per-million rate. Checked 30 Oct 2026. Where OpenRouter publishes no cache-read rate, the cell above is blank rather than inferred.

More on GPT-6.1 Terra

• The Take — The open-weights gap is real, and it is a price list
• Artificial Analysis Intelligence Index v5: Opus 5.5 leads at 58
• GPT-6.1 Terra: $1 per million input tokens, half of Sol's price

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