Best · Best open-weights AI model for factuality — October 2026
Best open-weights AI model for factuality — October 2026
As of Oct 14, 2026, Mimo V2.6 Pro is state of the art in Factuality, open weights (since Sep 25, 2026; sources LMArena Text factuality; methodology v1.0).
Leading, crown pending confirmation: Kimi K3.
Top 10
Ranks
Recent crowns
Last crown changes
- Sep 25, 2026 — Factuality: Mimo V2.6 Pro takes the crown
Weights
Which benchmarks count
- SimpleQA Verified — primary, weight 1
- LMArena Text factuality — primary, weight 0.8
Who is SOTA in Factuality, open weights?
As of Oct 14, 2026, Mimo V2.6 Pro is state of the art in Factuality, open weights (since Sep 25, 2026; sources LMArena Text factuality; methodology v1.0).
Since when is the Factuality, open weights crown current?
The current crown in Factuality, open weights has held since Sep 25, 2026.