Fable 5 on Playcode. As well as Sol, Grok 4.5 and GLM 5.2 (playcode.io)

Anthropic has launched Claude Fable 5, its latest flagship AI model, now available in Playcode’s AI website builder. Fable 5 is designed specifically for high-quality front-end coding, outperforming competitors like OpenAI’s GPT-5.6 Sol in key benchmarks such as the Artificial Analysis Intelligence Index and SWE-Bench Pro, achieving around 80% success in complex coding tasks. Although it commands a premium price of $10 per 1M input tokens and $50 per 1M output tokens—double that of its predecessor—its superior output quality makes it an appealing choice for design-critical projects and complex applications. Fable 5 is tailored for situations where precision and quality are paramount, making it ideal for polished designs and intricate coding logic. Users are encouraged to initially draft with more economical models before switching to Fable 5 for final touches. However, its higher cost and slower performance mean it may not be the best choice for quick edits or simpler projects. For those tasks, alternative models like GPT-5.6 Terra or Grok 4.5 may provide a more efficient solution. Overall, Fable 5 sets a new standard for front-end AI development, enhancing the capabilities available to developers and designers alike.