Overview Sudowrite is the AI writing tool built explicitly for fiction — novelists, short story writers, screenwriters, and hobbyist fiction hobbyists — in a category where every other "AI writer" is priced, positioned, and product designed around marketing copy, ad variations, and SEO blog posts. Founded in 2020 by novelist Amit Gupta and James Yu, the product was seeded on GPT 3 and evolved through 2022–2026 into a serious craft tool with story bible support, plot brainstorming, prose expansion, "show don't tell" rewrites, and a Canvas style workspace built around chapters rather than templates. It is one of the few AI writing tools whose founders openly write fiction themselves, and it shows in the product decisions — Sudowrite treats "extend this scene with vivid sensory detail in my narrator's voice" as a first class command instead of a bolted on prompt. What Sudowrite actually does, cleanly stated, is help fiction writers draft, revise, and expand prose at the paragraph and scene level while keeping character, world, and voice consistent across a long manuscript. You paste a scene, and Sudowrite offers Write (continue the prose in your voice), Rewrite (recast the passage in a different tone, POV, or level of description), Describe (generate sensory detail — sight, sound, smell, touch, taste — for a scene, character, or object), Brainstorm (generate alternatives for names, plot beats, twists, character motivations), and Expand (turn a summary paragraph into a fully drafted scene). Around this core the product wraps a Story Bible — a workspace…