Self-hosted AI workspace with chat, agents, deep research, documents, email, notes and calendar, using local models or your own API keys.
Open-source alternative toChatGPT Plus
Odysseus at a glance
Checked 18 Oct 2026Odysseus is an AGPL-3.0 self-hosted web workspace: chat and agents (tools, MCP, files, shell, memory) on local or API models, a Cookbook that recommends, downloads and serves local models, multi-step web research, blind model comparison, a document editor, an IMAP/SMTP email client, and notes, tasks and CalDAV calendar. Install with Docker Compose or natively on Linux, macOS or Windows (Python 3.11+). It is free; you bring local hardware or paid API keys, so answer quality depends on the model you use. The `dev` branch is default and may be unstable.
RepoQuarry. “Odysseus.” Checked 18 Oct 2026. https://repoquarry.dev/projects/odysseusHow much of ChatGPT Plus does it replace?
- Personal use
- Confirmed: Yes
- For a business
- Partial: Partly Commercial use with conditions: Allowed under AGPL-3.0; modified versions offered over a network must share their source
3 of 3 jobs. Replaces the chat interface, file chat and web research; answer quality depends on the local or API model you connect.
Facts, with sources
Every answer links to where we found it. We read the documentation; we did not install it.
A self-hosted AI workspace for chat, agents, research, documents, email, notes, calendar, and local model workflows.github.com · odysseus#readme ↗ 3d ago
The GNU Affero General Public License is a free, copyleft license for software and other kinds of worksgithub.com · LICENSE ↗ 3d ago
AGPL-3.0-or-later -- see LICENSE and ACKNOWLEDGMENTS.md.github.com · odysseus#readme ↗ 3d ago
Chat + Agents — local/API models, tools, MCP, files, shell, skills, and memory.github.com · odysseus#readme ↗ 3d ago
The app itself is lightweight; local model serving is the heavy part and depends on the model, runtime, GPU, and VRAM, so small hosts can connect to API or remote model servers instead.github.com · setup.md ↗ 3d ago
One-command launcher** (creates the venv, installs deps, runs setup, starts the server; safe to re-run)github.com · setup.md ↗ 3d ago
Open http://localhost:7011 when the containers are healthy.github.com · odysseus#readme ↗ 3d ago
No licence changes since we started watching. Licence watch: follow Odysseus and we email you if its licence terms change.
Growth and activity in detail
Is it popular, and is anyone still working on it? From GitHub.
- Actively maintained100+ people committing, active 11 of the last 12 weeks.
100+ people committing in the last 12 months · 31 pull requests merged in 30 days · 177 issues opened, 94 closed in 30 days
Stars over time
Building history+203 stars since 18 Oct 2026. The 7-day comparison and the trend label start once there is a full week of daily counts.
- Odysseus
Tracked daily since 18 Oct 2026. Dashed history: estimated from public records of when people starred the repo. Lines connect observations only; gaps contain no measured points.
Commits per week, last 52 weeks
active 11 of the last 12 weeksDown 74% on the 12 weeks before.
Where these numbers come from
- Stars, forks, releases: GitHub's public API, fetched every night (last fetch today).
- Star history: counted every night since 18 Oct 2026.
- Commits and people committing: GitHub's repository statistics, counted weekly. Names are never stored.
- Pull requests and issues: counted from GitHub for the last 30 days.
- Stars show popularity, not quality. The facts below are checked separately, by reading the project's own documentation. How we check.