Comprehensive side-by-side LLM comparison
UI-TARS-2 leads with 13.1% higher average benchmark score. Overall, UI-TARS-2 is the stronger choice for coding tasks.
ByteDance
Doubao 1.5 Vision Pro, released by ByteDance via Volcano Engine on January 22, 2025, is a multimodal large language model from the Doubao 1.5 family with comprehensive upgrades to visual reasoning, OCR, and fine-grained image understanding. Built on a large-scale sparse MoE architecture, it targets vision-intensive workflows including document analysis, chart interpretation, and visual question answering.
ByteDance
UI-TARS-2, released by ByteDance in September 2025, is a major generational upgrade of the UI-TARS family of GUI interaction models, with enhanced capabilities across computer control, game environments, code generation, and tool use. It targets agentic workflows requiring robust multimodal understanding of graphical interfaces across diverse application domains.
7 months newer
Doubao 1.5 Vision Pro
ByteDance
2025-01-22
UI-TARS-2
ByteDance
2025-09-04
Context window and performance specifications
Average performance across 1 common benchmarks
Doubao 1.5 Vision Pro
UI-TARS-2
Performance comparison across key benchmark categories
Doubao 1.5 Vision Pro
UI-TARS-2
Available providers and their performance metrics
Doubao 1.5 Vision Pro
ByteDance API
UI-TARS-2
Doubao 1.5 Vision Pro
UI-TARS-2
Doubao 1.5 Vision Pro
UI-TARS-2