Claude Fable 5 Launched On ChatLLM Try it for hard-coding prompts!! Auto-route to the best model based on prompt hard-coding – Fable 5
design – Opus 4.8
video – Grok Imagine 4.5
image – GPT Image 2 Our agent will automatically find the best AI for your task
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Claude Fable 5 Launch with Auto-Routing to Best Models
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Goal with precise prompt automatically executes
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Just set a /goal with a chonky well defined prompt and it just goes off and rips
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Fable 5 solves an adversarial PPO bug and improves parallelism
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It's 3 AM and Fable 5 just solved a bug for me that I've been struggling with for a week, impossible to find on an adversarial PPO training where the gradient was becoming almost zero… Well, it fixed it. And it also increased my parallelism to 4,557 steps/env/s.
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Claude Fable creates city block simulator with multi-agent traffic in one shot
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Just used claude fable (aka mythos) to create this city block simulator complete with multi-agent traffic, live detection boxes + tracks, and day to night cycle. And it just one shotted it. This is gonna be fun — the gap between idea and execution just keeps collapsing. pic.twitter.com/NqpeztzH84
— Bilawal Sidhu (@bilawalsidhu) 10 juin 2026Just used claude fable (aka mythos) to create this city block simulator complete with multi-agent traffic, live detection boxes + tracks, and day to night cycle. And it just one shotted it. This is gonna be fun — the gap between idea and execution just keeps collapsing.
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The Future of Models: User Satisfaction as a Key Factor
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Soon, as all models approach the same capabilities, the only thing that will matter is the one that is the most pleasant to use.
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Smart AI Voice Recorder Converts Speech to Multilingual Summaries
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Smart #AI Voice Recorder Converts Speech Into Instant Multilingual Summaries
— Ronald van Loon (@Ronald_vanLoon) 10 juin 2026
by @ViralRushX#ArtificialIntelligence #Innovation #Tech #FutureTech pic.twitter.com/P5v9vpQmP4Smart #AI Voice Recorder Converts Speech Into Instant Multilingual Summaries
by @ViralRushX #ArtificialIntelligence #Innovation #Tech #FutureTech -
Scroll in /usage for a detailed summary of consumed tokens
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Scroll down a bit in the /usage view to see a detailed summary of which specific skills/MCPs/plugins are consuming your tokens, in order to optimize token usage.
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Fable’s pelicans for thinking effort levels and API costs
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Here are Fable's pelicans for the different thinking effort levels, plus how much each one cost to generate via the Claude API
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First impressions of Claude Fable 5: slow, expensive, capable
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I wrote my first impressions of Claude Fable 5 – it feels like a big model: slow, expensive and capable of handling almost everything I threw at it.