Apache-2.0 · self-hostable

Open core.
Closed loop.

The flag server, the SDKs and the rollback engine are open source. Run it on your own metal, or let us run it for you.

$ docker run -p 8080:8080 rheostat/server

rheostat / rheostatRuntime control for AI-built software★ 18.4kstars⑂ 1.2kforks◉ 412contributorsLanguagesGo 62%TypeScript 28%Python 10%a3f9c21rollback: honour judge thresholds2 h

412 people
wrote this.

Half of last year’s releases started as a community pull request. Good first issues are labelled and mentored.

Good first issues

+ 388 more on GitHub

The roadmap is public.
Vote on it.

Open the board

Shipped3

Judge-aware rollbacksAgents 412 votes
Go zero-alloc evalSDK 298 votes
Parquet exportData 187 votes

In progress3

Kubernetes operatorInfra 366 votes
Rust SDK 1.0SDK 241 votes
Policy dry-run UIUI 158 votes

Next3

Edge worker runtimeInfra 509 votes
Multi-armed banditsExperiments 322 votes
Terraform importInfra 144 votes

Same engine.
Your choice of who runs it.

Self-hosted

Free forever

Docker, Helm or a single binary
Postgres or SQLite
All SDKs and the rollback engine
Community support

Self-host guide

Rheostat Cloud

From $0 · pay per evaluation

Global edge evaluation under 20 ms
Managed upgrades and backups
SSO, audit export, 99.99% SLA
Support from the maintainers

Start on Cloud

Discord
9,800: members, 40 maintainers online most days
Office hours
Thu 17:00: UTC, every week, recorded and posted
Good first issues
64: open and mentored right now

Open core. Closed loop.

412 people wrote this.

The roadmap is public. Vote on it.