Amazon Nova Act vs Perplexity Comet
Amazon Nova Act (Amazon (AWS)) and Perplexity Comet (Perplexity AI) side by side on public data, as of Oct 6, 2026.
Side-by-side numbers
| Metric | Amazon Nova Act | Perplexity Comet |
|---|---|---|
| Pulse Score | 23 | 24 |
| Overall rank | #111 | #110 |
| Downloads, last 7 days | 71.7K | — |
| Downloads, 7-day change | down 3.5% | — |
| Downloads, 30-day change | down 41.0% | — |
| VS Code installs | — | — |
| Marketplace rating | — | 4.8 / 5 (7,791) |
| GitHub stars | 918 | — |
| Homebrew installs, 30 days | — | 168 |
| Hacker News mentions, 30 days | 0 | 4 |
| Latest stable release | 3.4.187.0 · 5mo ago | — |
| Stable releases, 90 days | 0 | |
| Terminal-Bench (best run) | — | — |
| Price | Usage-based | Free |
| License | Apache-2.0 | Proprietary |
| First released | March 2025 | July 2025 |
| Interfaces | API, CLI, Web | Desktop, Mobile |
| Models | Amazon's custom Nova 2 Lite model |
Trends
Amazon Nova Act
AWS service and Apache-2.0 Python SDK for building and running fleets of UI-automation agents that complete browser workflows from natural-language act() calls plus Python code and hand off to a human when needed. Workflows are developed in a web playground, IDE extension or CLI and deployed on AWS.
Pricing: $4.75 per agent hour (human-in-the-loop wait time excluded; parallel agents are billed separately); available in US East (N. Virginia).
Latest release 3.4.187.0:
- Async Nova Act GA: The async NovaAct implementation is now generally available, giving you full asyncio support for concurrent browser automation workflows
- localStorage Session Persistence: Session providers can now optionally restore localStorage on session start, enabling seamless session continuity for apps that store auth tokens (e.g., JWTs) in…
- [CLI] Local File Browsing: You can now pass file:// URLs as the starting page in the CLI. Security options are automatically configured with the parent directory added to allowed file paths
- [CLI] S3 Key Prefix for Workflows: The act workflow create and act workflow deploy CLI commands now accept --s3-key-prefix for organizing workflow artifacts under a custom S3 key prefix
Perplexity Comet
Chromium-based AI browser from Perplexity with a built-in assistant that summarizes pages, answers questions across tabs and can act for the user, for example drafting email or shopping. It runs on Mac, Windows, Android and iOS.
Pricing: Comet is free to download and use (free for everyone since October 2025); higher limits and Perplexity Computer need a Perplexity Pro or Max plan. Plan prices could not be read from an official page.