{"slug": "aws-bedrock-to-require-sharing-data-with-anthropic-for-mythos-and-future-models", "title": "AWS Bedrock to require sharing data with Anthropic for Mythos and future models", "summary": "AWS Bedrock customers using Anthropic's Mythos-class models, including Fable 5 and Mythos 5, must now consent to 30-day data retention by Anthropic for misuse detection, with data leaving AWS's security boundary during that period. After 30 days, data is automatically deleted unless required for safety investigations or legal obligations. The policy applies to current and future high-capability models on the platform.", "body_md": "> For Fable 5, Mythos 5, and future models on Bedrock with similar or higher capability levels, Anthropic will require 30-day retention for all traffic on Mythos-class models. Retaining data for a limited period allows Anthropic to detect patterns of misuse that are not visible from a single exchange. Once you opt into data retention, your data will leave AWS’s data and security boundary.\n\nFrom the announcement here: [https://aws.amazon.com/blogs/aws/anthropic-claude-fable-5-on...](https://aws.amazon.com/blogs/aws/anthropic-claude-fable-5-on-aws-mythos-class-capabilities-with-built-in-safeguards-now-available/)\n\n> After 30 days, the data is deleted automatically, except in the rare cases where it's part of a safety investigation or we're legally required to keep it.\n\nFrom: [https://support.claude.com/en/articles/15425996-data-retenti...](https://support.claude.com/en/articles/15425996-data-retention-practices-for-mythos-class-models)\n\nComments URL: [https://news.ycombinator.com/item?id=48473166](https://news.ycombinator.com/item?id=48473166)\n\nPoints: 411\n\n# Comments: 249", "url": "https://wpnews.pro/news/aws-bedrock-to-require-sharing-data-with-anthropic-for-mythos-and-future-models", "canonical_source": "https://news.ycombinator.com/item?id=48473166", "published_at": "2026-06-10 08:21:38+00:00", "updated_at": "2026-06-11 17:19:45.500777+00:00", "lang": "en", "topics": ["ai-safety", "ai-policy", "large-language-models", "artificial-intelligence", "ai-products"], "entities": ["AWS", "Anthropic", "Claude", "Fable 5", "Mythos 5"], "alternates": {"html": "https://wpnews.pro/news/aws-bedrock-to-require-sharing-data-with-anthropic-for-mythos-and-future-models", "markdown": "https://wpnews.pro/news/aws-bedrock-to-require-sharing-data-with-anthropic-for-mythos-and-future-models.md", "text": "https://wpnews.pro/news/aws-bedrock-to-require-sharing-data-with-anthropic-for-mythos-and-future-models.txt", "jsonld": "https://wpnews.pro/news/aws-bedrock-to-require-sharing-data-with-anthropic-for-mythos-and-future-models.jsonld"}}