Moonshot’s Kimi K3 sets a new open-weights ECI record at 156

scaling01 · x · 2026-07-22

Moonshot’s Kimi K3 reaches an ECI score of 156, becoming the highest-scoring open-weights model so far.

• EpochAI says Kimi K3 now sits ahead of other open models and roughly alongside top closed models in its chart.
• The posted comparison places it near Claude Opus 4.6 and above prior open-weight entries such as GLM-5.2 and Kimi K2.6.
• This is a concrete capability signal for Moonshot’s open model lineup, not just a product announcement.

Original post →

More from Models

• Model Offers 1M Token Context Window at Just $0.33/1M Tokens — MickeySteamboat · 2026-07-22
• Google launches three new Gemini models, including a cybersecurity system — Polymarket · 2026-07-22
• Google says information agents are coming to AI Pro and Ultra this summer — gaganghotra_ · 2026-07-22
• Poolside’s Laguna S 2.1 gets a two-week free run on Nous Portal — NousResearch · 2026-07-22
• Qwen3.8 Max Preview looks substantially better in a side-by-side test with Kimi K3 — curiousily_ · 2026-07-22
• Moonshot’s Kimi K3 reaches #5 on MathArena as the top open model — xeophon · 2026-07-22

Models channel →