Artificial Analysis launches VIALS-AA benchmark; Fable 5.2 leads multiple rankings

Artificial Analysis released VIALS-AA, a life-science visual reasoning benchmark covering gel blots, plasmid maps and phylogenetic trees, where Claude Fable 5.2 topped multiple rankings at 67% with 1.6 tool calls per turn; the data also showed Anthropic models call tools more as they get stronger, unlike OpenAI's.

2026-11-10 ~ 2026-11-10 · 4 related posts

• Claude Fable 5.2 tops VIALS-AA science visual reasoning benchmark at 67% with heavy tool use — ArtificialAnlys · 2026-11-10
• Anthropic models use more tools as they improve, OpenAI models fewer: VIALS-AA data — ArtificialAnlys · 2026-11-10
• Claude Fable 5.2 tops VIALS-AA with 1.60 tool calls per turn, most of any model — ArtificialAnlys · 2026-11-10
• VIALS-AA benchmark: Gemini 4 Carbon leads at 64%, but more tool calls don't mean better answers — ArtificialAnlys · 2026-11-10