Wordware

Wordware is a San Francisco AI lab whose flagship product, Sauna (sometimes referred to as Sauna OS), is an AI assistant built around the idea that 'words are the next programming language.' Rather than positioning itself as another chat window, Sauna is pitched as an intelligent workspace that learns your preferences, identifies recurring patterns in your work, and proactively handles repetitive tasks so you can reclaim time for deep thinking. The original Wordware product was a natural-language IDE for building LLM agents, and that DNA shows up in Sauna's emphasis on durable context and agentic execution.

The target user is a knowledge worker drowning in shallow tasks — operators, founders, PMs, researchers — who wants a single assistant that remembers their style, projects, and people across sessions rather than starting from zero each prompt. Wordware raised what it calls the largest seed round in YC history at $30M and posted a record-breaking Product Hunt launch, so this is a well-capitalized bet rather than a weekend project, but pricing and underlying model choice aren't publicly disclosed on the marketing site.

Expect a closed, hosted product rather than an open framework: there is no public API tier, no open-source repo, and no published model list. If you need a transparent stack you can self-host or fine-tune, look elsewhere; if you want a polished consumer-grade 'second brain' assistant from a team with serious funding, Sauna is one of the more credible bets in the category.