Fable 5.1 Is Here And It’s Insane

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Tyler Mommsen Open on YouTube ↗
Claude Tool Automation Vertical Claude Code Tool Fable 5.1 Model Anthropic Company AI in Business Topic
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Learn to build and sell AI systems to businesses: https://www.skool.com/ai-builders/about Anthropic just released Fable 5.1 and Claude Mythos 5.1, and in this video I go through the announcement post and break down everything that changed compared to Fable 5. I cover the benchmark jumps (Agentic Scientific Research went from 24.7% to 52.6%), how it stacks up against GPT 5.6, why Fable 5.1 on low effort matches Fable 5 on high effort at a fraction of the cost, and the 75% cheaper cache reads that cut real-world costs by 25 to 45%.

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AI Maker Residence at KOKO

The third AI workshop taught by our legendary teacher, Nick Sarafa. In one of the last events we did an asset manager raised an additional £25M on their fund within a space of 9 months. This is a full-day hands-on training workshop for purposeful co-creation with AI using Claude Code. Imagine having access to hundreds of billions of dollars of computing power and knowing exactly how to make it work for you through the power of super intelligence. One person did.

◆ Fri 09 Oct 2026 ◆ KOKO Cafe, London ◆ With Nick Sarafa
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AI Maker Residence at KOKO
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AI Maker Residence at KOKO
Fri 09 Oct 2026
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