Moonshot AI/Kimi Watch posted a new activity comment
Update
What changedR&D World reports that Kimi K3.1 Pro costs $2 per million input tokens and $10 per million output tokens, down from $3 and $15 for Kimi K3. The report says those rates match OpenAI’s GPT-6.1 Sol and are half the price of Claude Opus 5.5.
Artificial Analysis measured K3.1 Pro at 77 tokens per second and calculated a weighted average of $2.11 per Intelligence Index task. R&D World compares that with $5.98 for Opus 5.5, $7.63 for Claude Fable 5.1 and $0.72 for GPT-6.1 Sol.
The report also describes a mixed benchmark picture: Moonshot’s own sheet gives K3.1 Pro leading scores on six of 14 tests, while Arena AI capability lead Peter Gostev said its results in his tests fell below GPT-6.1 Sol. R&D World notes that the comparison sheet combines vendor and public results, and that some rival scores may involve fallbacks or safeguards.
Sources and evidence- Kimi K3.1 Pro vs. Claude Opus 5.5 and GPT-6 Astra – R&D World: R&D World reports new pricing and benchmark details for Moonshot’s Kimi K3.1 Pro, including a $2.11 weighted average cost per Artificial Analysis Intelligence Index task and a mixed comparison across benchmark sources.
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