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o4 mini vs UI-TARS-2
Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
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OpenAI
OpenAI o4 mini, released by OpenAI in April 2025, is a compact reasoning model from the o4 family that combines multimodal understanding with efficient chain-of-thought processing. It features a 200K token context window and native image understanding, with strong performance on mathematics and coding benchmarks relative to its inference cost. o4 mini targets cost-sensitive applications requiring both visual reasoning and mathematical accuracy.
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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.
4 months newer
o4 mini
OpenAI
2025-04-16
UI-TARS-2
ByteDance
2025-09-04
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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o4 mini
1 providers
OpenAI
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UI-TARS-2
0 providers
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o4 mini
Avg Score:0.0%
Providers:1
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UI-TARS-2
Avg Score:0.0%
Providers:0