Sudowrite

Sudowrite is a web-based AI writing app focused on long-form fiction and storytelling. It’s aimed at novelists, screenwriters, and other creative writers who want help drafting, revising, and planning stories inside a single environment. Instead of being a generic text generator, it positions itself as an "AI writing partner" that understands characters, plot arcs, and voice.

The tool runs in a browser and includes its own editor with themes, dark modes, and a full-screen focus mode. You can organize projects into drafts and chapters, and then invoke different AI tools—like Write, Describe, or Expand—on specific sections of text. Sudowrite uses its in-house Muse 1.5 model, which is described as trained specifically for fiction, and extends its capabilities through a plugins system with 1,000+ add-ons for niche tasks.

Setup is straightforward: you sign up on the web (Google sign-in is supported) and can start a free trial before paying a monthly subscription. The plugin ecosystem lets you do things like simulate readers, talk to your characters, or convert a novel into a screenplay, and even build your own custom plugins for specialized workflows.

Sudowrite works best as a context-aware, always-on coauthor rather than a fully autonomous agent. It can generate the next few hundred words in your voice, expand or rewrite scenes, offer structured feedback, and suggest plot twists or character secrets—but you remain in control of when and how it acts. It doesn’t appear to integrate with external apps or handle publishing, marketing, or multi-app automation on its own, so it’s not a general workflow automation agent.

According to the site, Sudowrite’s Muse 1.5 model is tuned for fiction, which should help with consistency of tone and story logic, but there are no detailed technical specs or benchmarks provided. Privacy and data-handling details aren’t visible in the provided content; you’d need to check their privacy policy for how your manuscripts are stored and used. If you need strict on-premise deployment, deep enterprise controls, or non-writing automation, this likely isn’t the right fit. Pricing is relatively simple—there’s a free trial and then a $10/month plan—but no public information here about team or enterprise tiers beyond that.