{"slug": "claude-fable-s-shepherd-s-dog", "title": "Claude Fable's Shepherd's Dog", "summary": "Anthropic's previously withheld AI model, Claude Fable, successfully generated a complete 1,296-line video game called \"Shepherd's Dog\" in a single 45-minute session costing over 20 euros in tokens. The user reported the model produced the exact game concept they had envisioned for years, marking the first time an AI has delivered such a result in one attempt.", "body_md": "# Claude Fable's Shepherd's Dog\n\nJune 12, 2026\n\n1 min read\n\nA few days ago Anthropic released the model that was supposedly too dangerous for the world to see. I wanted to give the model a try and used my personal benchmark: Can it create an idea for a game that I've had for years in one shot. The model started with a -- very -- long reasoning session and after 45 minutes and more than 20 euros worth of tokens (!) it happily reported that \"Shepherd's Dog is complete — a single 1,296-line index.html with zero dependencies.\"\n\nYou can see the result in the video below or give the game a [try](https://github.com/vnglst/when-ai-fails/blob/main/shepards-dog/README.md) It's really fun and exactly how I imagined it. For me this is the first time an AI model is able to create this for me in one go:\n\n- Other attempts with earlier models:\n[github.com/vnglst/when-ai-fails/blob/main/shepards-dog/README.md](https://github.com/vnglst/when-ai-fails/blob/main/shepards-dog/README.md)", "url": "https://wpnews.pro/news/claude-fable-s-shepherd-s-dog", "canonical_source": "https://koenvangilst.nl/lab/claude-fable-shepherds-dog", "published_at": "2026-06-12 00:00:00+00:00", "updated_at": "2026-06-12 20:09:48.624488+00:00", "lang": "en", "topics": ["large-language-models", "generative-ai", "ai-products", "ai-tools"], "entities": ["Anthropic", "Claude Fable"], "alternates": {"html": "https://wpnews.pro/news/claude-fable-s-shepherd-s-dog", "markdown": "https://wpnews.pro/news/claude-fable-s-shepherd-s-dog.md", "text": "https://wpnews.pro/news/claude-fable-s-shepherd-s-dog.txt", "jsonld": "https://wpnews.pro/news/claude-fable-s-shepherd-s-dog.jsonld"}}