beryl vs momenticSame problem.
Same problem.
Opposite direction.
Momentic moves testing into its own platform — editor, agents, dashboard. Beryl goes the other way: the AI coding assistant you already use writes and maintains the tests, each test replays identically, and your workflow doesn't change. If you ship from Claude Code or Cursor, that decides it.
Momentic moves testing into its own platform. Beryl goes the other way: the AI coding assistant you already use writes and maintains the tests — your workflow doesn't change.
Where they differ
What it is
Beryl
A plug-in (MCP server) and CLI for the AI coding assistant you already use. It writes the tests; Beryl runs and repairs them
Momentic
A hosted AI testing platform — its own editor, agents, and dashboard
Who writes the tests
Beryl
Your coding assistant, in your editor — it clicks through your app in a live browser and writes each test as a step-by-step plan
Momentic
Your team or Momentic's agents, in plain-English steps stored as YAML
What a test is
Beryl
A step-by-step plan plus one line stating what it must prove, compiled to a Playwright test
Momentic
Plain-English YAML steps, interpreted by Momentic's runner
AI while tests run
Beryl
None — tests replay as plain Playwright, the same steps every time
Momentic
AI interprets the steps at run time, with a cache for repeat runs
When the UI changes
Beryl
Beryl repairs tests broken by cosmetic changes (a moved or renamed button); a genuine break stays red and is flagged as such
Momentic
Auto-heal and maintenance agents update tests as the product changes
Email codes & login links
Beryl
Each project has its own inbox, fresh address per run; a test reads the code or follows the link — on your laptop too
Momentic
Momentic-provisioned inboxes and phone numbers, via JavaScript steps
Running on your machine
Beryl
Full runs on your laptop with your own Playwright; results sync to the cloud (or stay local)
Momentic
CLI runs on laptops and in CI, or queues runs on Momentic's cloud
Setup & cleanup
Beryl
Before/after steps per test; after-steps run on pass and fail, so tests always clean up
Momentic
Handled as ordinary steps inside the test
Environments
Beryl
Per-environment URL, login, accounts, and schedule; one flag points a run at a preview URL
Momentic
Environment config via momentic.config and env files
Variables & secrets
Beryl
Project variables, encrypted secrets, and uploaded files — scoped per environment
Momentic
Variables from config, shell, or CI; secrets via .env and CI
Scheduling & alerts
Beryl
Daily or weekly runs per environment; Slack alerts on failures
Momentic
Scheduled runs, plus CLI/CI triggers; Slack notifications
Leaving
Beryl
Export any time — standard Playwright test files that run anywhere
Momentic
YAML lives in your repo — but runs only on Momentic
Browsers
Beryl
Chrome (Chromium), managed for you — in the cloud or on your machine
Momentic
Chromium-based browsers
Mobile app testing
Beryl
Web apps only — that's the focus
Momentic
iOS simulators and Android emulators
Compliance
Beryl
SOC 2 compliant
Momentic
SOC 2 Type 2, uptime SLA, SSO & RBAC, dedicated CSM
| Beryl | Momentic | |
|---|---|---|
| What it is | A plug-in (MCP server) and CLI for the AI coding assistant you already use. It writes the tests; Beryl runs and repairs them | A hosted AI testing platform — its own editor, agents, and dashboard |
| Who writes the tests | Your coding assistant, in your editor — it clicks through your app in a live browser and writes each test as a step-by-step plan | Your team or Momentic's agents, in plain-English steps stored as YAML |
| What a test is | A step-by-step plan plus one line stating what it must prove, compiled to a Playwright test | Plain-English YAML steps, interpreted by Momentic's runner |
| AI while tests run | None — tests replay as plain Playwright, the same steps every time | AI interprets the steps at run time, with a cache for repeat runs |
| When the UI changes | Beryl repairs tests broken by cosmetic changes (a moved or renamed button); a genuine break stays red and is flagged as such | Auto-heal and maintenance agents update tests as the product changes |
| Email codes & login links | Each project has its own inbox, fresh address per run; a test reads the code or follows the link — on your laptop too | Momentic-provisioned inboxes and phone numbers, via JavaScript steps |
| Running on your machine | Full runs on your laptop with your own Playwright; results sync to the cloud (or stay local) | CLI runs on laptops and in CI, or queues runs on Momentic's cloud |
| Setup & cleanup | Before/after steps per test; after-steps run on pass and fail, so tests always clean up | Handled as ordinary steps inside the test |
| Environments | Per-environment URL, login, accounts, and schedule; one flag points a run at a preview URL | Environment config via momentic.config and env files |
| Variables & secrets | Project variables, encrypted secrets, and uploaded files — scoped per environment | Variables from config, shell, or CI; secrets via .env and CI |
| Scheduling & alerts | Daily or weekly runs per environment; Slack alerts on failures | Scheduled runs, plus CLI/CI triggers; Slack notifications |
| Leaving | Export any time — standard Playwright test files that run anywhere | YAML lives in your repo — but runs only on Momentic |
| Browsers | Chrome (Chromium), managed for you — in the cloud or on your machine | Chromium-based browsers |
| Mobile app testing | Web apps only — that's the focus | iOS simulators and Android emulators |
| Compliance | SOC 2 compliant | SOC 2 Type 2, uptime SLA, SSO & RBAC, dedicated CSM |
Why teams pick Beryl
With Beryl
- You ship from Claude Code or Cursor and want tests written there
- You want tests that replay identically every time — no AI at run time
- Sign-up, email-code, and login-link flows are core
- You want a local write-run-fix loop your assistant can drive
- You want a way out — standard Playwright files you can take anywhere
Where Momentic still fits
- You need mobile app testing alongside web
- Non-engineers own the suite and want a platform UI for it
- Enterprise extras (uptime SLA, SSO/RBAC, dedicated CSM) are hard requirements
Momentic capabilities summarized from momentic.ai as of August 2026 — verify current capabilities with the vendor.