GLM-5.3 and Kimi K3 lead open weights at 44, still 9 points behind GPT-6 Astra and Claude Fable 5.1

ArtificialAnlys · x · 2026-09-08

Artificial Analysis' latest Intelligence Index shows GLM-5.3 and Kimi K3 tied atop open weights models at 44, followed by GLM-5.3-Flash (42), Qwen3.8 2.4T A95B (40), and DeepSeek V4 Pro 0813 (36).

The leading closed models, Claude Fable 5.1 and GPT-6 Astra, both score 53 — leaving the best open weights models 9 points behind the proprietary frontier.

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