{"type":"post","id":"claude-fable-5-2-scored-174-on-the-2701ba","slug":"claude-fable-5-2-scored-174-on-the-2701ba","title":"Claude Fable 5.2 scored 174 on the Epoch Capabilities Index, beating GPT-6 Astra's prior record of 169.","description":"Epoch AI ranks Claude Fable 5.2 first in its Epoch Capabilities Index, with a score of 174 across 239 tracked models.","retrieval_nugget":"Epoch AI ranks Claude Fable 5.2 first in its Epoch Capabilities Index, with a score of 174 across 239 tracked models. The scorecard spans games, mathematics, multimodal work, science, and world knowledge, giving builders a new comparative signal—but not a substitute for evaluating the tasks and costs that matter in production.","published_at":"2026-11-10","updated_at":"2026-11-10","record_date":"2026-11-10","date_kind":"published_at","topics":["claude","gemini","anthropic"],"entities":["Anthropic","Claude Fable 5.2","Epoch AI","Epoch Capabilities Index","GPT-6 Astra","Gemini 4 Argon","Claude Opus 5.5"],"related_patterns":[],"novelty_label":"new_fact","what_changed":"Claude Fable 5.2 scored 174 on the Epoch Capabilities Index, taking the top spot and surpassing GPT-6 Astra’s prior score of 169.","prior_refs":[],"source_url":"https://epoch.ai/models/claude-fable-5-2","source_urls":["https://epoch.ai/models/claude-fable-5-2"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:claude-fable-5-2-scored-174-on-the-2701ba","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/claude-fable-5-2-scored-174-on-the-2701ba/","markdown":"https://newruntime.com/posts/claude-fable-5-2-scored-174-on-the-2701ba.md","json":"https://newruntime.com/posts/claude-fable-5-2-scored-174-on-the-2701ba.json"},"markdown_url":"https://newruntime.com/posts/claude-fable-5-2-scored-174-on-the-2701ba.md","next_reads":[{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/gemini/","url":"https://newruntime.com/topics/gemini/","title":"Gemini","reason":"Explore the gemini topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/gemini.md","json_url":"https://newruntime.com/topics/gemini.json"},{"type":"topic","path":"/topics/anthropic/","url":"https://newruntime.com/topics/anthropic/","title":"Anthropic","reason":"Explore the anthropic topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/anthropic.md","json_url":"https://newruntime.com/topics/anthropic.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}