Surprise upset: GPT-5.5 beats Claude Fable 5 on brutal new Agents’… | HappeningNow.news

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Surprise upset: GPT-5.5 beats Claude Fable 5 on brutal new Agents’ Last Exam benchmark

Researchers from the University of California, Berkeley's Center for Responsible, Decentralized Intelligence (RDI), alongside an advisory committee of over 300 domain experts, have launched Agents’ Last Exam (ALE) —a grueling new…

Source AI Summary Published June 10, 2026 Brief Under 1 min brief
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AI Summary

A new benchmark called Agents' Last Exam has been launched to measure artificial intelligence's ability to execute professional workflows. This benchmark has been used to compare the performance of different AI models, with GPT-5.5 achieving the top spot.

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