Summary & Key Takeaways ​

• Moonshot has released Kimi K3.1 Pro, a new frontier AI model.
• It shows benchmark performance comparable to GPT-6 Astra and Claude Opus 5.5.
• Full model weights are slated for release by November 4, 2026.
• Pricing is competitive, matching GPT-6.1 Sol.
• This is the first time a soon-to-be open-weight model has scored so highly against frontier models.

Our Commentary ​

Kimi K3.1 Pro is a bombshell. A frontier model, competitive with the best, and soon-to-be open-weight? This is exactly what we need to push the open-source AI ecosystem forward. I'm genuinely excited to see what developers build with this once the weights drop. This could really shake things up.