Japanese storywriting AI for drafting fiction, shaping prose, and continuing stories.
AI Novelist is a web-based writing service by Bit192 focused on Japanese prose and fiction. Writers can begin with their own text or an example prompt, then generate passages within an editable document. Its models offer different approaches to narrative, dialogue, poetry, and instruction following.
The service supports an iterative writing process: generate a passage, revise it directly, and use the revised text to guide the next continuation. Selected models also accept instructions for developing scenes or turning plot outlines into prose.
Spiko-sama-04 emphasizes responsive interaction and light novella prose; Spiko Ultra handles complex context; Derrida-04 produces lyrical writing. Damsel+RAY focuses on natural prose without instruction-following or logical capabilities.
Apply prose styles for romance, Japanese internet horror, dark fantasy, light novellas, or tabletop RPG replays. Writers can also train custom mods from their own text.
Edit or delete generated passages anywhere in the document. The existing text influences subsequent output, allowing writers to steer phrasing and narrative direction through revision.
Default, Solid, and Colorful modes balance instruction following and narrative continuation. Solid favors comprehension and logical writing; Colorful uses sub-models specialized in dialogue and story progression. Solid is unavailable in the Lite version.
Spiko models are tuned to develop body text from bullet-point plots. The manual recommends supplying the elements intended for the next 300–1,000 characters rather than an extensive outline at once.
A REST API enables app integration, with an OpenAI-compatible endpoint for Spiko Ultra. Non-legacy models automatically cache repeated prompts for up to 10 minutes. The API is in limited alpha.
Give Spiko a short set of plot points for an upcoming scene, generate prose, then revise the passage before developing the next part.
Try romance, horror, or fantasy style mods to explore how a premise reads in different prose conventions. Historical Japan styling can support period fiction, though historical accuracy is not guaranteed.
Use the supplied pet-raising simulation prompt or tabletop RPG replay style to explore action-driven exchanges and conversations between a narrator and characters.
Use example prompts to produce scene openings from one to three keywords or character profiles from a name, gender, age, and birthday.
The manual recommends creating a document with “New Assistant.” Spiko can also continue existing fiction documents. If starting in normal novel mode, delete the initial text.
Press Send with an empty input field to request more text. If an instruction-tuned model stops at a section boundary, enter “Continue” or disable “Stop output at each paragraph.”
Spiko does not work correctly with the officially supported Chat Prompts or most existing scripts. For a similar conversational workflow, use New Assistant.
API charges vary by model and separate context from generation. Spiko Ultra lists 0.275 Lumina per 1,000 context tokens and 2.25 Lumina per 1,000 generated tokens. The limited alpha does not yet support large-scale public deployment, except personal clients or apps.
Traffic data is for reference only.
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