cua vs Yansu

cua and Yansu are both workflow automation tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

cua

Cua provisions cross-OS fleets from a single API, forks machine state over copy-on-write snapshots so you can reproduce failures without rebuilding from scratch, and serves pre-booted machines from warm pools that claim in milliseconds. The open-source Cua Driver runs background desktop automation on macOS and Windows — agents click, type, scroll, and inspect accessibility trees without stealing your cursor. Linux support in Cua Driver is in pre-release, so teams with Linux-heavy desktop workflows will hit that wall immediately. At scale, you either point your training loop at live warm pools or order verified trajectory datasets that arrive pre-packaged for your ingestion pipeline.

Yansu

Yansu, from Isoform, flips that contract: it watches how work actually gets done, learns the pattern, and builds the automation from observation rather than instruction. The vendor describes autonomous loop-based execution across desktop tasks, support ticket handling, and form-filling — with a local-first processing model that keeps data off third-party servers. Teams capturing tribal knowledge get the most direct value here; the agent surfaces patterns that live in no documentation. The ceiling appears when workflows require branching logic or cross-system integrations that go beyond what observation can infer, at which point teams are back to configuring manually. No public API is available, which limits how far this plugs into existing engineering stacks.

Attribute	cua	Yansu
Pricing	Paid	Paid
Price	—	$20/mo
Free trial	No	No
Open source	Yes	No
Has API	Yes	No
Self-hosted option	Yes	Yes
Platforms	macOS, Windows, Linux (pre-release), Android	macOS (Apple Silicon & Intel), Windows 10+, Ubuntu 20.04+
Released	—	2025-11
Pros	One API boots Linux, Windows, macOS, and Android machines across six local runtimes or the cloud, so you stop maintaining separate provisioning scripts for each OS your agents target. Copy-on-write snapshot forking lets you branch from a known machine state for every parallel episode, which means failures reproduce against the exact environment that produced them — no manual state reconstruction. Warm pools serve pre-booted machines in milliseconds, so large parallel eval batches do not serialize on cold-start latency the way they do with on-demand VM provisioning. Cua Driver runs background desktop automation without capturing focus or the cursor, so an agent can operate continuously on a developer's machine without interrupting their session — the thing that makes persistent eval loops on shared hardware viable. MIT-licensed open-source control and eval layers mean you can audit, fork, and self-host the Driver and Bench components, so vendor lock-in on the core automation interface is not a forcing function.	Observation-based learning means non-technical users can automate without writing prompts or mapping steps, so the person who knows the process is the person who creates the automation — no translation layer required. Local-first processing keeps observed workflow data off third-party servers, so teams with data residency requirements can deploy without routing sensitive operational data through a vendor cloud. Passive knowledge capture from collaborative interactions encodes institutional knowledge into the system as a byproduct of normal work, so process documentation stops depending on someone remembering to write it down. Autonomous ticket handling and form-filling runs without ongoing human input, so support and ops teams reduce the manual handoff cycles that otherwise consume hours of coordination per week.
Cons	Cua Driver's Linux desktop backend is in pre-release. Teams whose agents target Linux native apps cannot ship production automation against it — they run macOS or Windows coverage and maintain a separate path for Linux, or they wait on a release timeline the docs do not commit to. Verified trajectory datasets are produced and scored by Cua's own evaluators running on Cua's environments. Teams with strict data-provenance requirements or proprietary app surfaces that cannot be handed to a third-party fleet will need to run their own rollouts, which folds the full harness-management burden back onto them. The benchmark data the vendor surfaces — the best frontier agent clearing 6 of 25 expert KiCad tasks — scopes to a narrow expert domain. Teams trying to predict how their agent will perform on general enterprise UI workflows have precious little external validation data to anchor against, and will need to author their own Cua Bench evals before the infrastructure investment pays off.	Workflows with conditional branching — where step three depends on what step two returned — exceed what the observational model can infer. Teams hit this when the second or third automation involves any decision logic, and the workaround is manual configuration, which is the thing the tool was supposed to eliminate. No public API means Yansu cannot be called from external systems or composed into an engineering team's existing pipeline. Teams that need automation outputs to feed downstream services or trigger cross-system events move to a competitor with API access before the first integration sprint is done. The self-hosted option requires local infrastructure management. For small teams without DevOps capacity, the privacy benefit comes with an operational overhead that negates the no-technical-setup pitch.

Bottom line

Cua is open source; only cua exposes a public API. Choose based on which difference matters most for your workflow.

Frequently asked questions

What is the difference between cua and Yansu?

cua is Paid and open source, while Yansu is Paid. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is cua better than Yansu?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.

cua vs Yansu: which should I pick?

Pick cua if its pricing model, openness, or platform fit matches your constraints; pick Yansu otherwise. Check free-trial availability on each listing if you want to test before committing.

Comparison data is sourced and verified by the AIDiveForge data pipeline. AIDiveForge is editorially independent.