HLE
52.1 score
AskClash combines public benchmark cells into a weighted percentile score and penalizes missing coverage so narrow rows do not dominate better-measured models.
Only benchmark columns with cached public values are shown here. Missing cells remain blank in the live table.
52.1 score
92.8 score
99.0 score
57.7 score
75.1 score
75.0 score
70.6 score
82.8 score
82.1 score
73.3 score
87.1 score
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Cached AskClash article matches that can provide release, provider, or market context around this model.

On evaluating and understanding the frontier of agents, and why I still turn to Claude.
Our evaluation of OpenAI's GPT-5.5 cyber capabilities Simon Willison’s Weblog Subscribe 30th April 2026 - Link Blog Our evaluation of OpenAI's GPT-5.5 cyber capabilities . The UK's AI Security Institute previously evaluated Claude Mythos : now they've evaluated GPT-5.5 for finding security vulnerability and found it to be comparable to Mythos, but unlike Mythos it's generally available right now. Posted 30th April 2026 at 11:03 pm Recent articles LLM 0.32a0 is a major backwards-compatible refact
OpenAI locks GPT-5.5-Cyber behind velvet rope • The Register The Register Home Page Search Search The Register Navigation Topics Security All Security Cyber-crime Patches Research CSO Off-Prem All Off-Prem Edge + IoT Channel PaaS + IaaS SaaS On-Prem All On-Prem Systems Storage Networks HPC Personal Tech Cx0 Public Sector Software All Software AI + ML Applications Databases DevOps OSes Virtualization Offbeat All Offbeat Columnists Science Geek's Guide BOFH Legal Bootnotes Site News About Us More

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Last cached leaderboard date: May 22, 2026. This model page is generated from the AskClash AI Leaderboard cache and linked from the live leaderboard.