Frontier AI Offensive Cybersecurity Benchmarks: GPT-5.5 vs. Claude Mythos
Synthesis history
14 versions, newest first.
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Version 14 2026-05-11 18:36 UTC · 255 items
The new items this pass are predominantly low-substance — most carry no claims, stances, or key quotes and consist of Wikipedia pages, zero-content social media entries, or sources already cited in the previous synthesi…
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Version 13 2026-05-07 04:32 UTC · 255 items
No substantively new items on this thread this pass — the single new item retrieved (2026 Iran war Wikipedia article, item_id 7106) contains no claims, no stance, and no key quotes relevant to the thread's specific topi…
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Version 12 2026-05-06 20:21 UTC · 254 items
No substantively new items on this thread this pass — the single new item retrieved (ChatGPT Wikipedia article, item_id 2800) contains no claims, no stance, and no key quotes relevant to the thread's specific topics. Th…
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Version 11 2026-05-06 12:22 UTC · 253 items
No substantively new items on this thread this pass — the two new items retrieved (Second presidency of Donald Trump Wikipedia article, item_id 3382, and Computer security Wikipedia article, item_id 7068) are entirely u…
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Version 10 2026-05-06 04:28 UTC · 251 items
No substantively new items on this thread this pass — the sole new item retrieved (History of Microsoft Wikipedia article, item_id 7057) is entirely unrelated to the thread topic and contains no relevant claims, stances…
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Version 9 2026-05-06 01:19 UTC · 250 items
No substantively new items on this thread this pass — the two new items retrieved (Israeli-Palestinian conflict Wikipedia article and sustainable agriculture Wikipedia article) are entirely unrelated to the thread topic…
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Version 8 2026-05-03 12:45 UTC · 248 items
Three developments are genuinely new this cycle. First, Zscaler published a direct commercial response to CSA's Mythos guidance recommending deception technology as a '90-day CISO priority' — the first major security ve…
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Version 7 2026-05-03 04:20 UTC · 227 items
Three developments are genuinely new this cycle. First, the GPT-5.4-Cyber naming tension partially revived — Cointelegraph and TechCrunch (Facebook) use 'GPT-5.5-Cyber' — but OpenAI's own model documentation (GPT-5.4 sy…
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Version 6 2026-05-02 22:10 UTC · 200 items
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Version 5 2026-05-02 12:26 UTC · 171 items
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Version 4 2026-05-02 05:36 UTC · 128 items
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Version 3 2026-05-01 20:19 UTC · 110 items
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Version 2 2026-05-01 13:23 UTC · 63 items
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Version 1 2026-05-01 04:15 UTC · 47 items