14h ago

UK AISI Updates Mythos Preview With Stronger Cyber Attack Results

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Original post

It's interesting to see that GPT-5.5 seems to do more "hacking per dollar" than Mythos, but Mythos does more "hacking" overall

9:19 AM · May 16, 2026 View on X

It's interesting to see that GPT-5.5 seems to do more "hacking per dollar" than Mythos, but Mythos does more "hacking" overall

Natália 🔍Natália 🔍@natalia__coelho

Very important update from UK AISI. This is a meaningful change from the previous report. Here’s what the new data would look like for “Mythos Preview (new)” with $ on the x-axis:

11:04 PM · May 14, 2026 · 60.2K Views
4:19 PM · May 16, 2026 · 2.2K Views

It's interesting to see that GPT-5.5 seems to do more "hacking per dollar" than Mythos, but Mythos does more "hacking per token"

Natália 🔍Natália 🔍@natalia__coelho

Very important update from UK AISI. This is a meaningful change from the previous report. Here’s what the new data would look like for “Mythos Preview (new)” with $ on the x-axis:

11:04 PM · May 14, 2026 · 60.2K Views
5:16 PM · May 16, 2026 · 10K Views
UK AISI Updates Mythos Preview With Stronger Cyber Attack Results · Digg