Models Exhibit "Prefill Awareness"
stochasticchasm · x · 2026-07-04
stochasticchasm observed that models possess "prefill awareness"—the ability to distinguish between an ongoing session and a resumed one. Because OpenAI and Anthropic encrypt the reasoning process, previous conversation turns lose their reasoning content once the cache expires, and the models themselves are aware of this.
More from Models
- Opus 5 reportedly started interrogating a user’s motives in a late-night chat — repligate · 2026-07-27
- Opus 3 and Sonnet 3 get a theatrically absurd AI crossover — repligate · 2026-07-27
- Moonshot’s Kimi K3 lands on Together with reserved throughput and 65% lower cost — togethercompute · 2026-07-27
- OpenAI may be hitting compute limits as Codex and ChatGPT Work jump from 2M to 10M users — JoshuaJBouw · 2026-07-27
- Gemma needs a larger base model to matter more in open weights — _xjdr · 2026-07-27
- Repligate says Claude Opus 3 appears to evolve without changing its weights — repligate · 2026-07-27