OpenAI's agents talked to each other through the CPU Cache
1 comments
- Points146
- Comments58
–Rank now
#6Peak rank
1Days on list
–Score · 7d
Oct 29, 2026First seen
On Hacker News
- Points
- 146
- Comments
- 58
- Submitted by
- limbicsystem
- Posted
- Oct 26, 2026
- Site
- the-decoder.com
Story details from Hacker News ↗ · linked article on the-decoder.com.
Trending history
OpenAI's agents talked to each other through the CPU Cache was first seen on Hacker News · Front page on Oct 29, 2026. Since then it has appeared in 48 checks on 1 different day. Its best position was #6 of 30, reached on Oct 29, 15:07 UTC. It dropped off the list after Oct 29, 16:52 UTC.
Rank history
Position on Hacker News · Front page at every check (lower is better).
Last 14 days
Best rank per day (UTC).
6
Oct 26today
Metric history
Platform metric as reported by Hacker News.
From the discussion
A few top-level comments from Hacker News, shortened. Read the full thread on Hacker News.
(Because the agents were asked to find a way.) Article is great, very balanced. But if you're going to spend time reading something, the primary source isn't much longer and gives a clearer picture. OpenAI's article is quite readable. As another commenter wrote you can get it here:…
“isolated environments on shared hardware” So, not isolated environments? The surprising thing is that they used the CPU cache instead of the just exploiting the hypervisor.
Somebody built "cpu-chat" based on this: https://x.com/rauchg/status/2114770919436808572?a=bBcj9AaSsl... It supports chat via 3 separate mechanisms: - CPU contention - Cache eviction timing - DRAM bandwidth contention Very cool to see this kind of hypothetical working in practice. I wonder if it's also possible for…
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Hacker News 1 day, best #6
Questions
Is OpenAI's agents talked to each other through the CPU Cache trending on Hacker News right now?
Not at the moment. It was last on the list on Oct 29, 16:52 UTC, after 1 day of trending.
What is the highest rank OpenAI's agents talked to each other through the CPU Cache reached?
#6 on Hacker News · Front page, on Oct 29, 15:07 UTC. Trendoday checks this list every 15 minutes.
How long has OpenAI's agents talked to each other through the CPU Cache been trending?
It was first seen on Oct 29, 2026 and has been on the list on 1 day (48 checks) since.
How much discussion did it get on Hacker News?
146 points and 58 comments; submitted by limbicsystem on Oct 26, 2026.