Sudowrite

Sudowrite is an AI-assisted writing platform founded in 2020 by Amit Gupta and James Yu, based in San Francisco, California. The product is built specifically for fiction writers, distinguishing it from general-purpose writing assistants by focusing on narrative elements such as plot development, character building, scene generation, and prose revision.

The platform integrates multiple large language models, including Anthropic's Claude and OpenAI's GPT series, alongside a proprietary model called Muse developed internally for creative writing tasks. Core features include a "Story Engine" for structured long-form drafting, a "Describe" tool for sensory detail generation, and rewrite and brainstorm functions designed to match a writer's existing voice and style. Sudowrite has been used by novelists, screenwriters, and hobbyist fiction authors.

Sudowrite has operated without disclosed external venture funding and is believed to be largely bootstrapped. The founding team is small, with the company maintaining a headcount in the single digits. Amit Gupta, a co-founder, has served as the primary public face of the company. The platform gained notable attention in 2022 and 2023 as debates around AI-generated fiction intensified in publishing communities.