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On October 24, 2026, the blogger AYi posted an evaluation of Kimi K3.1 Pro's pricing and its performance on code and terminal tests. They stated that Kimi K3.1 Pro's input, output, and cache-hit prices are all only one-fifth of GPT-6 Astra's, and that its input and output prices are also only half of Opus 5.5's; on code and terminal tests it comprehensively surpasses Opus 5.5, and it will be fully open-sourced in early November. Another tweet cited in the post gives prices of $2 per million tokens for input, $10 for output, and $0.20 for cache hits, with the Highspeed version priced at double for both input and output. At present, this evaluation comes from a single source only, and there are no subsequent factual developments.
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Kimi K3.1 Pro Price Compared with Opus 5.5 and GPT-6 Astra, Fully Open-Sourced in Early NovemberDevelopments
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Blogger reviews Kimi K3.1 Pro pricing and coding terminal performance
Source:Ayi AI Notes
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Oct 24
AYi AI NotesSelected
Kimi K3.1 Pro Price Compared with Opus 5.5 and GPT-6 Astra, Fully Open-Sourced in Early November
The author compared the prices of Kimi K3.1 Pro, Opus 5.5, and GPT-6 Astra: Kimi K3.1 Pro's input, output, and cache-hit prices are all only one-fifth of GPT-6 Astra's, and its input and output prices are also only half of Opus 5.5's. The author states that Kimi K3.1 Pro comprehensively surpasses Opus 5.5 on coding and terminal tests, and will be fully open-sourced in early November. Another tweet cited gives prices of $2 per million tokens for input, $10 for output, and $0.20 for cache hits, with the Highspeed version charging double for both input and output.