Their models, or your patterns on your machines.
Nightfall is an AI-native DLP platform with over a hundred trained detectors covering SaaS apps, email, endpoints and AI tools, including a Chrome extension that inspects prompts before they reach an assistant. It is a deeper classifier than Capsulla will ever be. The trade is what that classification costs you in exposure and in control.
| Side by side | Capsulla. | Nightfall AI |
|---|---|---|
| How detection works | Capsulla.Patterns you write or draft with AI, plus card checksums, file types and domains | Nightfall AI100+ machine-learning detectors, file classifiers and computer-vision models |
| Where content is inspected | Capsulla.In the browser, on the device | Nightfall AINot stated publicly — worth asking them |
| Scope | Capsulla.The browser: pasting, typing, uploads, downloads | Nightfall AISaaS, endpoints, email, browsers and AI apps |
| Tuning | Capsulla.Edit the rule, see what it catches, change your mind in a week | Nightfall AITrust the model, tune thresholds |
| Who runs it | Capsulla.The admin who already runs Google Admin | Nightfall AIA security or compliance owner across several integrations |
| What it costs | Capsulla.$139 a month for the workspace | Nightfall AIQuoted; buyers report a median near $24,000 a year — about $2,000 a month |
A rule you can read beats a score you cannot
When a model flags something, the honest answer to “why did this fire?” is a probability. A Capsulla rule is a pattern, a label and an action — you can read it, test it against a sample before you save it, and explain it to the person it stopped.
The thing you are protecting does not travel to be judged
A cloud classifier has to receive the content to classify it. That is an additional place your customer records and keys exist, an additional processor in your GDPR paperwork, and an additional dependency on somebody's uptime. On-device matching has none of those because there is nothing to send.
Worth knowing
- Nightfall's public material describes the browser extension as using the same detectors as the rest of their platform. If on-device classification matters to you, ask them directly where inspection happens.
- Capsulla recognises what you describe to it. That is less than a hundred trained detectors, and it is yours to change the day your business changes.
- Figures for other products come from their own published pages, public marketplace listings or buyer-reported medians. They are approximate and they change — if something here is out of date, tell us and we will fix it.
Other comparisons
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