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Amazon Nova Act

H - Finding Homes on Zillow

M - Flight Booking (SFO - EWR)

L - Finding weekend activities

Amazon Nova Act

In March 2025, Amazon AGI Labs released Nova Act, a research-preview Python SDK + vision model for building browser agents. Instead of asking a model to finish an entire workflow from one prompt, Nova Act encourages developers to break jobs into small, “atomic” act() calls—each call takes a screenshot + natural-language instruction, returns a low-level action plan (click, type, scroll), and executes it through Playwright. By constraining the model to focused steps, Amazon reports >90 % accuracy on hard UI widgets (date-pickers, dropdowns, pop-ups) and top scores on ScreenSpot & GroundUI-Web benchmarks, outperforming Claude 3.7 and OpenAI CUA on most sub-tasks.

Key features

Reliability-first design – atomic commands stitched together by the developer; suited to workflows that must run unattended.

Playwright integration – the SDK exposes the underlying page object so you can mix direct Python (e.g., typing passwords) with model-driven steps.

Structured extraction – pass a JSON or Pydantic schema to act() and receive validated data instead of free-form text.

Parallel sessions & headless mode – spin up many Nova Act instances for map-reduce-style scraping or run workflows on a schedule once stable.

Trace & video logging – every run can emit an HTML replay and optional MP4 for debugging

Preview limitations & safety notes

U.S.-only wait-list; Mac OS / Ubuntu, Python 3.10+.

No CAPTCHA solving; watch for prompt-injection, and keep secrets out of prompts (use direct Playwright calls instead).

Amazon stores prompts + screenshots for service improvement; email nova-act@amazon.com to delete data.

Nova Act positions itself as “Selenium you can talk to”—a pragmatic, reliability-oriented step toward fully autonomous agents, and the first building block in Amazon’s broader Nova model family

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