Scalaris Atlas
Scalaris Atlas turns a computer into a local host for AI models, serving them to compatible clients.
What Scalaris Atlas is
Scalaris Atlas turns a computer into a local host for AI models, serving them to compatible clients. It accepts OpenAI-compatible clients at localhost and provides routes for chat completions, embeddings, and model lists. Atlas includes Pulsar, and its model manager lets users install other models. The API covers only a strict subset of the OpenAI HTTP surface; requests to unimplemented endpoints receive a typed 501 response. Atlas runs locally on Linux, macOS, and Windows. The maker says models stay on the machine, with no telemetry or phone-home behavior. Network egress is denied by default, and Atlas refuses non-loopback binds unless the user changes that setting. Scalaris Toolbox installs and supervises Atlas. Configuration is kept in one TOML file, with settings reloaded when the file changes. If GPU memory is exhausted, Atlas can fall back to CPU only when the user enables `--allow-cpu`. The free plan is free, with free-forever access and zero egress by default.
Good
- Runs models locally on three desktop platforms.
- Supports chat completions, embeddings, and model-list routes.
- Includes Pulsar and a model manager.
- Egress is denied by default.
- Configuration reloads when its TOML file changes.
Watch out
- API supports only a subset of the OpenAI HTTP surface.
- Unimplemented endpoints return a typed 501 response.
- CPU fallback requires enabling `--allow-cpu`.
- Installed and supervised through Scalaris Toolbox.
Who it suits
Atlas suits people using OpenAI-compatible clients who want to run models locally on Linux, macOS, or Windows. It may also suit users who want local serving with egress denied by default.
Verdict
Atlas provides local model serving for compatible clients, with network controls and model-management features. Its API is limited to a subset of the OpenAI HTTP surface, and CPU fallback requires an explicit setting.
Plans and prices
From Scalaris Atlas's own pricing page, checked 8 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Free forever · zero egress by default |
The facts
Each one read from Scalaris Atlas's own pages, with the date it was checked.
What it does
- API compatibility
- Atlas accepts OpenAI-compatible clients at localhost and exposes chat completions, embeddings, and model-list routes.checked 8 Oct 2001
- API limits
- Atlas exposes a strict subset of the OpenAI HTTP surface, and unimplemented endpoints return a typed 501 response.checked 8 Oct 2001
- Configuration
- Atlas configuration is stored in one TOML file, and settings reload when that file changes.checked 8 Oct 2001
- Installation
- Atlas is installed and supervised through Scalaris Toolbox.checked 8 Oct 2001
- Integration
- The maker says to point an OpenAI-compatible client at localhost:8787 to integrate Atlas.checked 8 Oct 2001
- Intended users
- Atlas is for people using OpenAI-compatible clients who want to run AI models locally.checked 8 Oct 2001
- Local processing
- The maker says models are served locally and nothing leaves the machine.checked 8 Oct 2001
- Model support
- Atlas includes Pulsar and lets users install their own models through its model manager.checked 8 Oct 2001
- Network controls
- Egress is denied by default, and Atlas refuses non-loopback binds unless the user explicitly changes the setting.checked 8 Oct 2001
- Resource handling
- When GPU memory is exhausted, Atlas falls back to CPU only if the user enables --allow-cpu.checked 8 Oct 2001
- Telemetry
- The maker says Atlas has no telemetry and does not phone home.checked 8 Oct 2001
- What it does
- Atlas turns a computer into a private AI host that serves local models to compatible clients.checked 8 Oct 2001
Alternatives to Scalaris Atlas
- 1

Claude Code
Free planAndroidiOSWebWindows7.4From $17 a month - 2

Gemini
Free planAndroidiOSWebWindows6.9Free plan - 3
Computer Use OOTB
Free planWebmacOSSelf-hostedWindows6.8Free plan - 4
Lapu AI
Free planmacOSWindows6.7From €16 a month - 5
QuickDesk
Free planAndroidWebAPImacOS6.5Free plan - 6
Contop
AndroidiOSLinuxmacOS6.4
