All tasks / Models
UI-TARS-1.5-7B
ByteDance Seed's open-weights GUI agent model that operates desktop and browser interfaces from screenshots.
- ByteDance Seed
- Open weights
- Released Apr 2025
Where it ranks
- –Browser & computer agentsModels · Local · no result on this task’s benchmarks yet
Facts
- Vendor
- ByteDance Seed
- Family
- UI-TARS
- Released
- Apr 2025
- Weights
- Open: download and run it yourself
- License
- Apache-2.0
- Parameters
- 8.3B
- GPU memory to run locally
- ~6 GB (4-bit ≈ 8.3 B × 0.57 GB + 1.5 GB ≈ 6 GB, estimate.)
- Access
- Free (open weights)
- Last verified
- 18 Oct 2026
Price from huggingface.co, 18 Oct 2026.
Benchmark results
| Benchmark | Result | Entry on the leaderboard | As of | Source |
|---|---|---|---|---|
| OSWorld-Verified (models) | 29.6% | uitars-1.5-7bSpecialized model; 100 max steps; entry date 2025-07-28; read from osworld_verified_results.xlsx | 18 Oct 2026 | os-world.github.io |
Where you can use it
- –Midscene.jsAgent frameworks · Local
- –UI-TARS DesktopAgent frameworks · Local
Earlier versions
- UI-TARS (2B/7B/72B) · Jan 2025