UI-TARS

Open-source multimodal GUI agent

An open-source multimodal GUI agent from ByteDance for controlling computer interfaces and completing tasks through visual and language understanding.

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workflowPRIMARY2026-05-10

UI-TARS opens desktop control with accessibility API workflows

UI-TARS resurfaced as an open-source desktop-control stack while Opendesk described using accessibility APIs and marked elements instead of raw pixel guesses. The approach makes computer-use workflows more repeatable, but it still depends on human-oriented interfaces.