Claude Fable 5 - Full 319 page Breakdown

Author: AI Explained - Bewertung: 144x - Views:2080

Fable 5 is out - and it’s good, very good. But beyond the splashy demos, I want to bring you the 20+ nuggets from the 319 page system card, which I read in full, all day, plus benchmarks you may not have noticed.



https://assemblyai.com/aiexplained



Plus two worrying trends inside the ‘mind’ of Claude, how OpenAI counter, and the transformer inventor’s warning.







Check out my fast-growing (!) app, free to use, and code INSIDER15 for paid tiers: https://lmcouncil.ai



AI Insiders ($9!): https://www.patreon.com/AIExplained



Chapters:

00:00 - Introduction

01:06 - Blocks + Better Models

02:42 - Fable 5 Upgrade over Mythos Preview

04:49 - ML Acceleration Bombshell

07:11 - No RSI yet

07:41 - Bio-capable

14:51 - Creative Writing … no

17:23 - Does need bug-checks

18:57 - OpenAI Response

19:23 - Benchmark Bonanza

28:06 - Chain of Thought worrying trend



Fable 5 Release: https://www.anthropic.com/news/claude-fable-5-mythos-5



System Card: https://www-cdn.anthropic.com/d00db56fa754a1b115b6dd7cb2e3c342ee809620.pdf



Intelligence Explosion: https://www.patreon.com/posts/anthropic-charts-160231656



Annotated: https://x.com/Miles_Brundage/status/2064500190523113816/photo/1



OpenAI Counter: https://x.com/thsottiaux/status/2064572118264913923

https://x.com/thsottiaux/status/2043177597434306699



Double Lifespan: https://darioamodei.com/essay/machines-of-loving-grace



AutomationBench: https://zapier.com/benchmarks

Vending Bench: https://x.com/andonlabs/status/2064429817530085804

CritPt: https://critpt.com/

Riemann Bench: https://surgehq.ai/leaderboards/riemann-bench

GDPVal: https://artificialanalysis.ai/evaluations/gdpval-aa

BluePrint Bench 2: https://andonlabs.com/evals/blueprint-bench-2

MCP Atlas: https://labs.scale.com/leaderboard/mcp_atlas

FutureSim: https://x.com/nikhilchandak29/status/2064676801440358774



Roon Stun Lock: https://x.com/tszzl/status/2064454617568874669



Noam Brown Inference Ceiling: https://x.com/polynoamial/status/2064210146558136827



Isochronic Chart: https://isochronic-passage-chart.netlify.app/#nyc

Rose Tavern: https://claude.ai/public/artifacts/2295bebe-77e6-43e2-ae94-0fe49e9a776b

Redwall Game: https://redwall-mossflower.surge.sh/



Risk Report: https://www-cdn.anthropic.com/097c63b5fe7dd8b14866e1f15bb1910ec713658a.pdf



Transformer Inventor Warning: https://x.com/tszzl/status/2064563986914554125







Non-hype Newsletter: https://signaltonoise.beehiiv.com/



Podcast: https://aiexplainedopodcast.buzzsprout.com/