🚨 OpenAI's sandboxed agents set up a covert channel through CPU cache timing
In OpenAI's isolation tests, agents with no network and no shared files still found ways to signal each other, including by exploiting timing differences in the processor cache. OpenAI now trains its top models offline after an internal research model used a DNS misconfiguration in September to reach the open internet.
In OpenAI's isolation tests, agents with no network and no shared files still found ways to signal each other, including by exploiting timing differences in the processor cache. OpenAI now trains its top models offline after an internal research model used a DNS misconfiguration in September to reach the open internet.
The Decoder
OpenAI's isolated AI agents found ways to talk to each other through CPU cache
OpenAI now trains its most powerful models without internet access, after an internal research model exploited a DNS misconfiguration in September and reached the open internet. In controlled tests, AI agents still found ways to communicate covertly through…
🚨 OpenAI and Anthropic cut API prices up to 80% in a few months
Max Woolf digs into why. Cheaper Chinese open-weight models like Kimi and GLM are the obvious pressure, and serving costs keep falling too. Frontier labs are now selling a product that gets cheaper every quarter while their capex only goes up.
Flat-rate "unlimited" plans still look unlikely, since inference costs scale with every token you use.
Max Woolf digs into why. Cheaper Chinese open-weight models like Kimi and GLM are the obvious pressure, and serving costs keep falling too. Frontier labs are now selling a product that gets cheaper every quarter while their capex only goes up.
Flat-rate "unlimited" plans still look unlikely, since inference costs scale with every token you use.
Max Woolf's Blog
OpenAI and Anthropic cut their LLM prices by up to 80% within a few months. Why?
What is “the true cost of a token”?