Comprehensive side-by-side LLM comparison
Seed-1.8 leads with 8.8% higher average benchmark score. Overall, Seed-1.8 is the stronger choice for coding tasks.
ByteDance
Seed-1.8, developed by ByteDance Seed, is a generalized agentic large language model supporting text and image input, with industry-leading GUI agent capabilities and improvements in multimodal reasoning over its predecessor Seed1.5-VL. It targets information retrieval, code generation, GUI interaction, and complex agentic workflows requiring robust multimodal understanding.
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.
3 months newer
UI-TARS-2
ByteDance
2025-09-04
Seed-1.8
ByteDance
2025-12-18
Average performance across 1 common benchmarks
Seed-1.8
UI-TARS-2
Performance comparison across key benchmark categories
Seed-1.8
UI-TARS-2
Available providers and their performance metrics
Seed-1.8
UI-TARS-2
Seed-1.8
UI-TARS-2