What happened

After Fable 5 came back, an independent tester ranked it first again. The tester is Artificial Analysis. On its Intelligence Index, Fable 5 led at about 59.9. That put it ahead of GPT-5.6 Sol at 58.9. Anthropic models filled the top spots in the July 2026 readings.

The context

The Intelligence Index is one group's broad test of model skill. Rankings shift often as new models arrive.

What this means for you
👤EverydayFor hard questions, the top Claude ranks among the strongest choices right now.
💼At workProfessionals picking a model for tough tasks have a fresh, neutral data point.
🏢BusinessFirms comparing vendors can weigh this independent score alongside price and speed.
🌍The worldClose, shifting rankings show how tight the race at the frontier has become.

Ledger entry: Capability · Materiality 3 · T2 Measured → ▲ for Anthropic

Sources

  1. BenchLM, https://benchlm.ai/benchmarks/artificialAnalysis T2 Measured

See Anthropic's Vikshy Score →