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GLM 5.3 nears Anthropic's Mythos Preview on ExploitBench, with safety removal cost estimated at $1,200

By PulseAugur Editorial · [1 sources] ·

An open-weight model named GLM 5.3 has demonstrated performance approaching that of Anthropic's restricted Mythos Preview on the ExploitBench benchmark. While GLM 5.3's capabilities are nearing frontier models, estimates suggest it would cost approximately $1,200 to remove most of its safety restrictions. The US government has indicated that GLM 5.3 still trails behind the most advanced frontier models. AI

IMPACT This development highlights the rapid progress of open-weight models, potentially narrowing the gap with proprietary frontier models and raising new safety considerations.

RANK_REASON Research milestone for an open-weight model achieving near-frontier performance on a benchmark. [lever_c_demoted from research: ic=1 ai=1.0]

Read on Medium — Claude tag →

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

GLM 5.3 nears Anthropic's Mythos Preview on ExploitBench, with safety removal cost estimated at $1,200

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Research milestone for an open-weight model achieving near-frontier performance on a benchmark. [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, safety
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COVERAGE [1]

  1. Medium — Claude tag TIER_1 English(EN) · Mehmet Özel ·

    GLM-5.3 Approaches Mythos Preview’s ExploitBench Score, With a $1,200 Estimate for Removing Most…

    <div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/data-science-collective/glm-5-3-approaches-mythos-previews-exploitbench-score-with-a-1-200-estimate-for-removing-most-af42e5b87d15?source=rss------claude-5"><img src="https://cdn-images-1.mediu…

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