--- title: Anthropic Claude Fable 5 on AWS: Mythos-class... description: Anthropic's Claude Fable 5 is now available on Amazon Bedrock and Claude Platform on AWS. The model brings Mythos-level capabilities to a broader audience with... canonical: https://daily.dev/posts/anthropic-claude-fable-5-on-aws-mythos-class-capabilities-with-built-in-safeguards-now-available-v5fsy0xiu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Anthropic Claude Fable 5 on AWS: Mythos-class capabilities with built-in safeguards now available | daily.dev og:description: Anthropic's Claude Fable 5 is now available on Amazon Bedrock and Claude Platform on AWS. The model brings Mythos-level capabilities to a broader audience with... og:url: https://daily.dev/posts/anthropic-claude-fable-5-on-aws-mythos-class-capabilities-with-built-in-safeguards-now-available-v5fsy0xiu og:image: https://api.daily.dev/og/posts/V5fSY0xiu.png og:image:alt: Anthropic Claude Fable 5 on AWS: Mythos-class capabilities with built-in safeguards now available og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Anthropic Claude Fable 5 on AWS: Mythos-class capabilities with built-in safeguards now available **[AWS](https://daily.dev/sources/aws)** · 5 min read · 1 upvotes · 0 comments ## Summary Anthropic's Claude Fable 5 is now available on Amazon Bedrock and Claude Platform on AWS. The model brings Mythos-level capabilities to a broader audience with built-in safeguards that route harmful prompts in cybersecurity, biology, chemistry, and health to Opus 4.8 instead. Key features include long-running asynchronous task execution, advanced vision for diagrams and PDFs, and proactive self-verification. Access requires opting into data sharing via the Data Retention API, with Anthropic requiring 30-day retention of inputs and outputs. The model is available via the Anthropic Messages API, Invoke API, and Converse API. A limited preview of Claude Mythos 5 (the unconstrained version) is also available on Bedrock for vetted customers in cybersecurity and life sciences. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#python](https://daily.dev/tags/python), [#llm](https://daily.dev/tags/llm), [#claude](https://daily.dev/tags/claude), [#anthropic](https://daily.dev/tags/anthropic), [#amazon-bedrock](https://daily.dev/tags/amazon-bedrock) [View this post on daily.dev](https://daily.dev/posts/anthropic-claude-fable-5-on-aws-mythos-class-capabilities-with-built-in-safeguards-now-available-v5fsy0xiu) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Anthropic Claude Fable 5 on AWS: Mythos-class capabilities with built-in safeguards now available","url":"https://daily.dev/posts/anthropic-claude-fable-5-on-aws-mythos-class-capabilities-with-built-in-safeguards-now-available-v5fsy0xiu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/anthropic-claude-fable-5-on-aws-mythos-class-capabilities-with-built-in-safeguards-now-available-v5fsy0xiu"},"datePublished":"2026-06-09T18:51:36.812Z","dateModified":"2026-06-09T19:41:51.700Z","description":"Anthropic's Claude Fable 5 is now available on Amazon Bedrock and Claude Platform on AWS. 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