{"slug": "claude-fable-5-2-sets-record-on-epoch-capabilities-index-at-174", "title": "Claude Fable 5.2 sets record on Epoch Capabilities Index at 174", "summary": "Anthropic's Claude Fable 5.2, launched November 9, 2026, set a record score of 174 on the Epoch Capabilities Index, surpassing OpenAI's GPT-6 Astra at 169, and also topped the Artificial Analysis Intelligence Index with 65 against Google's Gemini 4 Carbon at 60 and Anthropic's own Claude Opus 5.5 at 59. The model scored 80% on HLE-Diamond and 73% to 75% on Terminal-Bench-Science, supports a 1 million-token context window with up to 128,000 output tokens, and is priced at $8 per million input tokens and $40 per million output tokens, a 20% reduction from Fable 5.1. Anthropic built Fable 5.2 for complex reasoning and agentic tasks, and it remains priced above Claude Opus 5.5.", "body_md": "# Claude Fable 5.2 sets record on Epoch Capabilities Index at 174\n\nPhoto: Tima Miroshnichenko / Pexels\n\nAnthropic's newest model edges past OpenAI's GPT-6 Astra on two major leaderboards and arrives with a lower price than its predecessor\n\n[Anthropic](https://cryptobriefing.com/markets/anthropic/) has a new top scorer. Claude Fable 5.2 posted a 174 on the Epoch Capabilities Index, a new record that clears [OpenAI](https://cryptobriefing.com/markets/openai/)’s GPT-6 Astra and its score of 169.\n\nThe model launched on November 9, 2026. Anthropic built it for complex reasoning and agentic tasks, meaning work where the AI plans and carries out multistep jobs instead of answering one question and stopping.\n\n## The scoreboard, line by line\n\nThe Epoch result is the headline number, but it is not the only leaderboard Fable 5.2 now sits atop.\n\nOn the Artificial Analysis Intelligence Index, the model scored 65, the highest mark on that ranking. [Google](https://cryptobriefing.com/markets/alphabet/)’s Gemini 4 Carbon trails at 60.\n\nAnthropic’s own Claude Opus 5.5 lands at 59, six points back.\n\n### AI, tech, and the markets they move—in one daily briefing.\n\nDaily. Free. Join 34,000+ readers across crypto, finance, and policy.\n\nThe biggest jumps showed up in specialized, harder tests. Fable 5.2 hit 80% on HLE-Diamond and landed between 73% and 75% on Terminal-Bench-Science.\n\n## Cheaper, but still not cheap\n\nFable 5.2 costs $8 per million input tokens and $40 per million output tokens. That pricing marks a 20% reduction from Fable 5.1.\n\nFor the uninitiated, tokens are the small chunks of text a model reads and writes. Input is what you send in, output is what the model generates, and here output costs five times as much as input.\n\nEven with the discount, Fable 5.2 remains a premium product. It still sits above Claude Opus 5.5 on price, so Anthropic is effectively running a tiered menu inside its own lineup.\n\nThe technical specs back up the premium positioning. The model supports a 1 million-token context window and can produce up to 128,000 tokens of output in a single response. The model is also described as performing robustly in high-effort settings, where it is given more room to work through a problem before responding.\n\n**Disclosure:** This article was edited by Diego Almada Lopez. For more information on how we create and review content, see our [Editorial Policy](https://cryptobriefing.com/editorial-policy/).", "url": "https://wpnews.pro/news/claude-fable-5-2-sets-record-on-epoch-capabilities-index-at-174", "canonical_source": "https://cryptobriefing.com/claude-fable-5-2-epoch-record-174/", "published_at": "2026-11-09 21:26:12+00:00", "updated_at": "2026-11-09 21:54:06.581438+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-agents", "ai-research"], "entities": ["Anthropic", "Claude Fable 5.2", "OpenAI", "GPT-6 Astra", "Epoch Capabilities Index", "Artificial Analysis Intelligence Index", "Google", "Gemini 4 Carbon"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/claude-fable-5-2-sets-record-on-epoch-capabilities-index-at-174", "markdown": "https://wpnews.pro/news/claude-fable-5-2-sets-record-on-epoch-capabilities-index-at-174.md", "text": "https://wpnews.pro/news/claude-fable-5-2-sets-record-on-epoch-capabilities-index-at-174.txt", "jsonld": "https://wpnews.pro/news/claude-fable-5-2-sets-record-on-epoch-capabilities-index-at-174.jsonld"}}