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Anthropic brings Mythos to the masses with Claude Fable 5, its most powerful generally available model ever
Anthropic has released two new AI models, Claude Fable 5 and Claude Mythos 5, representing their most powerful "Mythos-class" AI capabilities. Fable 5, intended for general users and developers, significantly outperforms previous Claude models in software engineering, knowledge work, scientific research, and long-running tasks. Claude Mythos 5 offers less restricted capabilities but is only available to Anthropic-approved users, including cybersecurity partners and select researchers. The primary distinction is Fable 5's enhanced safety features, which reroute high-risk queries to an older model, a limitation not present in Mythos 5. Both models share underlying capabilities, with Fable 5 incorporating an additional safeguard layer. Fable 5 is accessible through Anthropic's website, apps, and API, while Mythos 5 is initially limited to existing Mythos Preview users. Both models are priced at $10 per million input tokens and $50 per million output tokens. Fable 5 demonstrates remarkable improvements in autonomous coding, outperforming competitors on benchmarks and enabling complex tasks like large codebase migrations. It also shows enhanced performance in knowledge work, finance, legal, and operational tasks, excelling in document reasoning and complex problem-solving. Furthermore, Fable 5 boasts Anthropic's strongest vision capabilities to date, allowing for tasks like extracting data from scientific figures and rebuilding application code from screenshots. The company is positioning these models for enterprise use, enabling AI agents to handle larger, more complex projects with greater autonomy.
