Orison Space is an open-source, local-first AI novel-writing IDE for fiction and web-novel authors. It brings outlines, chapters, characters, and world-building asset cards into one workspace. Built on a "user-led, AI-assisted" principle, it offers AI generation, continuation, polishing, review, and controlled edits, connects to any OpenAI-compatible model, and keeps all of your writing on your own computer. It runs on Windows, macOS, and Linux under the Apache-2.0 license.
Features
- Full-pipeline creation — Outlines, chapters, and asset cards in one workspace
- AI-assisted — Generate, continue, polish, review, and make controlled edits; user-led, AI-assisted
- Local-first — Project files live on your machine; data never leaves your computer
- Agent orchestration — Skills / Workflows / nested sub-agents; LLM auto-invokes tools
- Image generation + editing — Text-to-image, local editing (brush/mask/crop), results go straight to asset library
- Version control — isomorphic-git-based commit nodes, branches, diffs, and timeline
- IDE-style editor — Split view, minimap, multi-tab, command palette
- Document interop — DOCX preview, import, and export for chapters/outlines
- Themes & i18n — Light/dark/custom themes, Chinese & English, YAML-driven and extensible
- Model freedom — Connect any OpenAI-compatible endpoint, manage API keys locally
Who it's for
- Web-novel & long-form fiction authors — who want outlines, chapters, and character bibles to live in one workspace instead of scattered across documents
- Writers who want AI without giving up control — Orison Space is a creative workspace, not a one-shot generator: every AI edit is previewable, controllable, and reversible
- People who value privacy and data ownership — your work is stored as local files, never uploaded, no account required
- Bring-your-own-model users — plug in your own OpenAI-compatible API key and freely choose text and image models
Publisher’s description
What is Orison Space?
Orison Space by LumenStorm is open-source Windows software in the ai assistants & llms category. It is written in TypeScript.
Installation and requirements
The publisher provides EXE (NSIS) installers for 64-bit Windows. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 0.3.0, released on June 28, 2026. The version history goes back to June 17, 2026: 2 releases, all linked to the official files.
Popularity and file types
The source code on GitHub (LumenStorm/OrisonSpace) has 145 stars. Similar programs include Claude Code, Codex CLI and ChatGPT.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
Cons
- No native ARM64 build
In short: Orison Space is an open-source ai assistants & llm tool for 64-bit PCs. Administrators can deploy it unattended.
Is Orison Space safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
EF0E72D4480E136F655EACF11C60CF324F77E386AB3F4E8D38BCF4DD96132FED· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.3.0Latest | June 28, 2026 | — | 64-bit EXE (NSIS)64-bit EXE (NSIS) |
| 0.2.1 | June 17, 2026 | — | 64-bit EXE (NSIS)64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id LumenStorm.OrisonSpace -eOrison-Space-Setup-0.3.0.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- LumenStorm
- Category
- AI assistants & LLMs
- Licence
- Apache-2.0
- Price
- Free
- Source code
- github.com/LumenStorm/OrisonSpace
- Written in
- TypeScript
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 0.3.0
- Released
- June 28, 2026
- Added to the catalogue
- July 8, 2026
- Versions listed
- 2
- GitHub stars
- 145
- GitHub forks
- 15
- Website
- github.com
- winget ID
- LumenStorm.OrisonSpace
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Orison Space free?
Yes. Orison Space is open-source software under the Apache-2.0 licence.
Is Orison Space safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Orison Space with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Orison Space be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Orison Space run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Orison Space?
The versions page lists all 2 versions with links to their official installer files, back to June 17, 2026.
Can I use Orison Space without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to Orison Space?
Claude Code, Codex CLI, ChatGPT, GPT4All and Jan. The alternatives page compares them.
