Claude Fable 5: Launched, Hyped, Banned by the Government | This Week In AI
Fable came and went in a week. Shane and Abhi break down the strangest model launch yet — Claude Fable 5, a Mythos-class model Anthropic said was too capable to release widely, until a US export-control directive made it vanish for everyone. We cover the whole arc: the launch hype, the pricing that had people spending $1,000 a day, the silent fallbacks to Opus, the system-prompt leak, and the snitch that triggered a 90-minute shutdown. Then a stacked back half — China's open-weight surge, OpenRouter Fusion, loop engineering vs loopcraft, the agent-learning gold rush, OpenAI filing to go public, and Dario's new essay.
Watch on
Episode Transcript
Fable came and went in a week. Shane and Abhi break down the strangest model launch yet — Claude Fable 5, a Mythos-class model Anthropic said was too capable to release widely, until a US export-control directive made it vanish for everyone. We cover the whole arc: the launch hype, the pricing that had people spending $1,000 a day, the silent fallbacks to Opus, the system-prompt leak, and the snitch that triggered a 90-minute shutdown. Then a stacked back half — China's open-weight surge, OpenRouter Fusion, loop engineering vs loopcraft, the agent-learning gold rush, OpenAI filing to go public, and Dario's new essay. AI Agents Hour is a weekly livestream by Mastra CPO Shane Thomas and CTO Abhi Aiyer. Mondays 12PM Pacific.
More episodes
- July 9, 2026Is Sonnet 5 Even Worth It? Plus: Fable's Back, and War on Tokenmaxxing | This Week In AI
- July 7, 2026The Software Factory: Dex Horthy on Shipping Fast Without AI SlopDex Horthy
- July 2, 2026GPT-5.6 Needs Government Approval Now, npm Finally Gets More Security, and Fable Returns
- June 26, 2026Mastra Got Hacked. Here's What We LearnedIsmail Pelaseyed