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Grok 4.1 Fast vs UI-TARS-72B-DPO
Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
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xAI
Grok 4.1 Fast, released by xAI in November 2025, is a fast-response variant from the Grok 4 family featuring a 2M token context window designed for high-throughput applications. It omits thinking tokens for immediate responses, reducing latency while maintaining strong output quality. Grok 4.1 Fast targets production APIs, real-time assistants, and cost-sensitive applications requiring long-context understanding at high volume.
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ByteDance
UI-TARS-72B-DPO, released by ByteDance in early 2025, is a 72 billion parameter multimodal large language model from the UI-TARS family, built on Qwen-2-VL and fine-tuned for automated GUI interaction and computer control. It features native understanding of screenshots, UI elements, and web interfaces, achieving strong results across GUI benchmarks for perception, grounding, and agentic control. UI-TARS-72B-DPO targets computer-use agents, web automation, and applications requiring robust visual UI reasoning.
10 months newer
UI-TARS-72B-DPO
ByteDance
2025-01
Grok 4.1 Fast
xAI
2025-11-17
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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Grok 4.1 Fast
1 providers
xAI
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UI-TARS-72B-DPO
0 providers
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Grok 4.1 Fast
Avg Score:0.0%
Providers:1
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UI-TARS-72B-DPO
Avg Score:0.0%
Providers:0