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Claude Fable 5.2 sets new AI capabilities record, surpassing GPT-6 Astra

By PulseAugur Editorial · [1 sources] ·

Epoch AI has announced that its Claude Fable 5.2 model has achieved a new record on the Epoch Capabilities Index (ECI), scoring 174. This surpasses the previous record of 169 set by GPT-6 Astra. The Fable 5.2 score exceeds the predicted trendline for reasoning models. AI

IMPACT Sets a new benchmark for AI model capabilities, potentially influencing future development and competition.

RANK_REASON The item reports on a new benchmark score for an AI model, which is a research milestone. [lever_c_demoted from research: ic=1 ai=1.0]

Read on Mastodon — fosstodon.org →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Fable 5.2 sets new AI capabilities record, surpassing GPT-6 Astra

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15 / 100
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The item reports on a new benchmark score for an AI model, which is a research milestone. [lever_c_demoted from research: ic=1 ai=1.0]
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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model release, other
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High
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COVERAGE [1]

  1. Mastodon — fosstodon.org TIER_1 English(EN) · [email protected] ·

    Epoch AI @epochai.bsky.social Claude Fable 5.2 sets a new record on the Epoch Capabilities Index (ECI) at 174. The previous high was GPT-6 Astra’s 169. Fable 5.

    Epoch AI @epochai.bsky.social Claude Fable 5.2 sets a new record on the Epoch Capabilities Index (ECI) at 174. The previous high was GPT-6 Astra’s 169. Fable 5.2’s score is above what the pre-Astra trend for reasoning models would have predicted. # AI # Anthropic # Claude https:/…

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