Our impressions of Claude Fable/Mythos (we filmed this before the ban)

<p>RIP Fable 5. We recorded this before it got taken offline, but it&#39;s still worth talking about. The model is incredible. We really miss it.</p><p><br></p><p>Thank you, Firecrawl, Depot, and Clerk for sponsoring!</p><ul><li>Firecrawl, the best api for searching and crawling the web: <a href="https://nerdsnipe.link/firecrawl" target="_blank" rel="noopener noreferer">nerdsnipe.link/firecrawl</a></li><li>Depot, better CI in every way: <a href="https://nerdsnipe.link/Depot" target="_blank" rel="ugc noopener noreferrer">nerdsnipe.link/depot</a></li><li>Clerk, the best dx in auth: <a href="https://nerdsnipe.link/Clerk" target="_blank" rel="ugc noopener noreferrer">nerdsnipe.link/clerk</a></li></ul><p><br></p><p>Sources</p><ul><li><a href="https://x.com/thsottiaux/status/2043177597434306699" target="_blank" rel="ugc noopener noreferrer">https://x.com/thsottiaux/status/2043177597434306699</a></li><li><a href="https://cognition.ai/blog/frontier-code" target="_blank" rel="ugc noopener noreferrer">https://cognition.ai/blog/frontier-code</a></li><li><a href="https://x.com/paradite_/status/2064585901351792887" target="_blank" rel="ugc noopener noreferrer">https://x.com/paradite_/status/2064585901351792887</a></li><li><a href="⁠https://www-cdn.anthropic.com/d00db56fa754a1b115b6dd7cb2e3c342ee809620.pdf⁠ (" target="_blank" rel="ugc noopener noreferrer">https://www-cdn.anthropic.com/d00db56fa754a1b115b6dd7cb2e3c342ee809620.pdf (</a>page 13 has the “prompt modification” quote)</li><li><a href="https://www.anthropic.com/institute/recursive-self-improvement" target="_blank" rel="ugc noopener noreferrer">https://www.anthropic.com/institute/recursive-self-improvement</a></li><p><br></p></ul><p>Timestamps</p><ul><li>0:00 Intro</li><li>3:29 Fable First Impressions</li><li>10:24 Benchmark Drama</li><li>26:42 Claude Code &amp; Workflows</li><li>36:07 Pricing &amp; June 22 Cutoff</li><li>39:54 Data Retention</li><li>45:58 Hidden Safeguards</li><li>1:07:01 The Claude Constitution</li></ul>