truespeech

In Ursula Le Guin's Earthsea, the True Speech is the language of wizards and dragons — a language in which words are bound elementally to the things they name, making lies and deception impossible.

truespeech is a technology for LLM-to-human communication that guarantees what the user sees is valid and accurate. It is a programming language in which an LLM expresses its claims, and a runtime that validates those claims against real data before rendering them into English. The result is communication that is deterministic, auditable, and provably correct.

The full truespeech stack is under active development. In building it, we found that a key piece of infrastructure did not yet exist: a lightweight, browser-ready runtime for the Open Semantic Interchange standard. So we built one and are sharing it now.