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Artificial Analysis Intelligence Index v4.2 released, Anthropic leads rankings

By PulseAugur Editorial · [2 sources] ·

Artificial Analysis has released version 4.2 of its Intelligence Index, introducing new evaluations like AA-Briefcase for agentic knowledge work and GDP.pdf for long-context document reasoning. This update increases the weighting of private, held-out test sets to 40% to prevent gaming and includes infrastructure upgrades for more robust grading. The latest rankings show Anthropic's Claude Fable 5.1 leading, followed by OpenAI's GPT-6 Astra and Meta. AI

IMPACT This update to a prominent AI benchmark index reflects the rapid pace of model development and aims to provide more realistic evaluations for agentic capabilities and long-context reasoning.

RANK_REASON Update to an existing AI benchmark index with new evaluations and updated rankings.

Read on Hacker News — AI stories ≥50 points →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Artificial Analysis Intelligence Index v4.2 released, Anthropic leads rankings

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Research
Update to an existing AI benchmark index with new evaluations and updated rankings.
Source corroboration
2 independent sources
Multiple independent publishers reporting the same story raises confidence that it's real and newsworthy.
Topics
product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
46 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [2]

  1. Hacker News — AI stories ≥50 points TIER_1 English(EN) · nojs ·

    Artificial Analysis Intelligence Index v4.2

  2. r/singularity TIER_2 English(EN) · /u/Profanion ·

    Artificial Analysis updates its Intelligence Index to version 4.3

    <table> <tr><td> <a href="https://www.reddit.com/r/singularity/comments/1wa3o5j/artificial_analysis_updates_its_intelligence/"> <img alt="Artificial Analysis updates its Intelligence Index to version 4.3" src="https://external-preview.redd.it/Uw3L3Q9dURCUAiVK11khGxkTuy7trlrKohDe0…

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