# Scion — AI Coding Tool Review & Pricing

> Scion is an open-source, experimental orchestration platform from Google Cloud Platform for teams of AI agents and the people working with them. It runs harnesses such as Claude Code, Antigravity, Codex and OpenCode as independent containerized agents with their own roles, configuration and credentials, letting them delegate tasks, share findings and work in parallel locally or on cloud infrastructure.

Source: https://ai.dosa.dev/tools/scion · Updated Oct 22, 2026 · Category: Autonomous & Async Agents · Published by dosa.dev

## At a glance

- **Tool**: Scion
- **Company**: Google Cloud Platform
- **Category**: [Autonomous & Async Agents](https://ai.dosa.dev/category/async-agents)
- **Pricing model**: Open Source
- **Official website**: https://googlecloudplatform.github.io/scion/

## Key features

- Runs Claude Code, Antigravity, Codex and OpenCode as independent agent processes with per-agent configuration and credentials
- Shared workspaces or separate Git worktrees and clones per agent
- Agent roles, delegation, and group and direct messaging between agents
- `scion` CLI plus a Workstation web UI with an onboarding wizard
- Local, Workstation, single-node hosted and HA hosted Hub modes on Docker, Podman, Apple Container, Kubernetes or Cloud Run
- Templates, a versioned Skill Bank and an A2A bridge to other agent systems

## Pricing

**Model**: Open Source

Free and open source under the Apache-2.0 license; you supply your own coding-agent harness subscriptions or model credentials and container or cloud infrastructure (Docker, Podman, Apple Container, Kubernetes or Cloud Run).

## Who it is for

- **Best for**: Engineers and teams experimenting with multi-agent collaboration patterns who want to orchestrate several off-the-shelf coding agents in isolated containers, from a laptop up to a shared hosted Hub.
- **Not ideal for**: Teams that need a stable, supported product; Scion is pre-1.0, its APIs and configuration change between releases, and it is not an officially supported Google product.

## Verdict

A serious, fast-moving testbed for multi-agent orchestration backed by Google Cloud engineers, with broad harness and runtime support; best treated as an experimental platform rather than production infrastructure.

## Recent updates

Open-sourced in April 2026 (covered by InfoQ); the repository publishes nightly builds (latest nightly-20261022) and receives daily commits, with Homebrew installation via the community homebrew-scion tap and Workstation, hosted Hub and Kubernetes runtimes in active use.

## Frequently asked questions

### Is Scion free?

Yes - Scion is Open Source. Free and open source under the Apache-2.0 license; you supply your own coding-agent harness subscriptions or model credentials and container or cloud infrastructure (Docker, Podman, Apple Container, Kubernetes or Cloud Run).

### Is Scion open source?

Yes - Scion is open source. Free and open source under the Apache-2.0 license; you supply your own coding-agent harness subscriptions or model credentials and container or cloud infrastructure (Docker, Podman, Apple Container, Kubernetes or Cloud Run).

### Who is Scion best for?

Engineers and teams experimenting with multi-agent collaboration patterns who want to orchestrate several off-the-shelf coding agents in isolated containers, from a laptop up to a shared hosted Hub.

### Who is Scion not ideal for?

Teams that need a stable, supported product; Scion is pre-1.0, its APIs and configuration change between releases, and it is not an officially supported Google product.

### What are the best Scion alternatives?

The closest Scion alternatives on ai.dosa.dev are Jules, OpenHands, SWE-agent - all listed under Autonomous & Async Agents.

### Who makes Scion?

Scion is developed by Google Cloud Platform. It is listed in the Autonomous & Async Agents category on ai.dosa.dev.

## Top alternatives

- [Jules](https://ai.dosa.dev/tools/jules) (Freemium) — Developers looking to automate routine maintenance, bug fixing, dependency upgrades, and complex multi-step coding tasks within a GitHub-centric workflow.
- [OpenHands](https://ai.dosa.dev/tools/openhands) (Freemium) — Individual developers and software teams looking to automate repetitive coding tasks, repository maintenance, and issue resolution through autonomous agents.
- [SWE-agent](https://ai.dosa.dev/tools/swe-agent) (Open Source) — Developers and researchers looking to automate software engineering tasks, resolve GitHub issues, or perform complex coding challenges autonomously.
- [Sweep](https://ai.dosa.dev/tools/sweep) (Freemium) — Individual developers and teams who live in JetBrains IDEs and want a native-feeling assistant for autocomplete, bug fixes, and routine coding tasks.
- [Ellipsis](https://ai.dosa.dev/tools/ellipsis) (Freemium) — Engineering teams needing to automate repetitive coding tasks, code reviews, and maintenance workflows with governance and security oversight.
- [Genie](https://ai.dosa.dev/tools/genie) (Freemium) — Teams working with large, complex production codebases that require an autonomous agent to handle full engineering tasks asynchronously rather than acting as a real-time typing assistant.
- Full alternatives guide: https://ai.dosa.dev/tools/scion/alternatives