Hiperyon

Switching between ChatGPT, Claude and other chatbots usually means pasting the same background again and again.

Hiperyon is a Chrome extension and AI productivity tool that keeps one shared memory layer across many popular large language models, so context carries over when you change models.

The extension works inside the browser, so it only helps with browser-based AI tools.

A dedicated dashboard lets you manage what Hiperyon remembers, and activation is simple.

Reported results include up to 30% better response quality and token savings of 90%, though those are the maker's figures and your results will depend on how you work.

Data is encrypted, the service is GDPR compliant, and you keep ownership and control of what is stored.

The free plan covers basic features and is a reasonable way to try it, but it limits requests, memory and the number of supported models.

Applying memory with a keyboard shortcut in Perplexity is listed as coming soon, so that case is not covered yet.