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Claude Fable 5.1 & Mythos 5.1: Benchmarks, Costs, Demos, and What’s New Check out Arcade: https://arcade.dev.plug.dev/xiDRwlA Anthropic has released Claude Fable 5.1 and Mythos 5.1, with Mythos still limited behind the Glasswing program while Fable 5.1 is broadly accessible. The video reviews Anthropic’s announcement, highlights major benchmark gains—especially a near doubling on agentic scientific research—alongside improvements in agentic coding, knowledge work, computer use, and multidisciplinary reasoning, plus Artificial Analysis rankings and cost comparisons. It notes pricing changes that can reduce token-billed workloads by about 25% via cheaper cache reads, and up to 45% for highly agentic work, with an enterprise usage example. Demos include controlling Blender via headless mode to build rich 3D scenes and Simon Willison’s pelican-on-a-bike SVG benchmark across reasoning levels, plus HTML game generation. The episode also covers safer behavior, fewer benign interventions, improved writing tone and formatting, access via Claude Code/web/API, and Dario’s comments on delivering real scientific impact. 00:00 Claude 5.1 Launch 00:31 Benchmarks and Gains 01:45 Pricing and Token Savings 02:48 Blender 3D Demo 03:34 Pelican SVG Reasoning 04:29 Arcade MCP Sponsor 05:43 Terminal Bench Results 06:32 More Demos and Safety 07:15 Writing and Tone Upgrades 07:49 Access and Research Vision 09:11 Wrap Up and CTA
Technical content at the intersection of AI and development. Building with AI agents, Claude Code, and modern dev tools - then showing you exactly how it works.
