Arcjet
Runtime security for AI agents, coding agents and web apps
Free planPaid from $2515-day trial
- API / SDK
- CLI / Terminal
Arcjet vs Simular (Sai)
A side-by-side comparison to help you choose.
Arcjet
Arcjet edges ahead on overall rating and fit.
Try Arcjet
Simular (Sai)
Sai, an autonomous computer agent that runs your screen tasks in the cloud or on your…
Paid Subscription$50
- Web app
- macOS
- Windows
- Linux
Feature comparison
| Arcjet | Simular (Sai) | |
|---|---|---|
| Rating | 4.3 / 5 | 4.0 / 5 |
| Pricing | Free+Paid | Paid Subscription |
| Starting price | $25 | $50 |
| Free plan | Included | Included |
| Offers free trial | Yes (15 days) | No |
| Platforms | API / SDK, CLI / Terminal | Web app, macOS, Windows, Linux, API / SDK |
| Integrations | Claude | — |
| Best for | Developer teams shipping AI agents or AI-powered features who need guardrails against prompt injection, data leaks and runaway token spend, and who are happy to integrate an SDK. | Operators, founders and teams who lose hours to repetitive screen work in tools that have no API, and who want an agent that can work on a Windows or Mac machine. |
| Founded | 2023 | — |
| Company | Arcjet Labs, Inc. | Simular Inc. |