Will It Mythos?
The article discusses the effectiveness of Mythos, a tool for finding security bugs, and its comparison to other models. The author created a benchmark suite to test the abilities of different models in identifying bugs. The results show that while some models performed better than others, all of them did worse than expected in finding the bugs.
- ▪Mythos is a powerful tool for finding security bugs, but its effectiveness is being questioned by the author.
- ▪The author created a benchmark suite to compare the abilities of different models in identifying bugs.
- ▪The results of the benchmark show that all models performed worse than expected in finding the bugs, with some performing better than others.
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Story provenance
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | I've done some things |
| Canonical URL | https://swelljoe.com/post/will-it-mythos/ |
| Publication time | Tue, 23 Jun 2026 04:15:04 +0000 |
| Retrieval time | 2026-06-23T04:44:35.046Z |
| Last seen | 2026-06-23T04:44:35.046Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | None |
| Cluster logic | Not yet clustered, or no peer story found in the clustering window. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Will It Mythos?May 30, 2026OK, so Mythos finds really challenging security bugs, right? That’s why it’s cordoned off from the hoi polloi, to protect the world from such a powerful finder of exploits.I am skeptical of the reasons given publicly, I suspect it’s really just so much more expensive to operate than their current models that they don’t want to offer it broadly, yet, given the difficulty they’ve had growing capacity to keep up with use. But, are they telling the truth about how good it is at finding security vulnerabilities or is it just more hype?A while back, I built a tool to automate bug hunting in my own projects called Nelson, and I’d already noticed there are surprising differences in the various models and how effectively they identify bugs. But, I wanted hard numbers.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at I've done some things.
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