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Grok-4 Heavy vs Kimi K2 Base
Comprehensive side-by-side LLM comparison
Kimi K2 Base leads with 23.5% higher average benchmark score. Grok-4 Heavy supports multimodal inputs. Overall, Kimi K2 Base is the stronger choice for coding tasks.
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xAI
Grok-4 Heavy is a multimodal language model developed by xAI. It achieves strong performance with an average score of 79.5% across 6 benchmarks. It excels particularly in AIME 2025 (100.0%), HMMT25 (96.7%), GPQA (88.4%). As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents xAI's latest advancement in AI technology.
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Moonshot AI
Kimi K2 Base is a language model developed by Moonshot AI. It achieves strong performance with an average score of 69.2% across 13 benchmarks. It excels particularly in C-Eval (92.5%), GSM8k (92.1%), MMLU-redux-2.0 (90.2%). It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
2 days newer
Grok-4 Heavy
xAI
2025-07-09
Kimi K2 Base
Moonshot AI
2025-07-11
Average performance across 18 common benchmarks
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Grok-4 Heavy
Average Score:26.5%
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Kimi K2 Base
Average Score:50.0%(+23.5%)
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Knowledge Cutoff
Training data recency comparison
Grok-4 Heavy
2024-12-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Grok-4 Heavy
0 providers
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Kimi K2 Base
0 providers
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Grok-4 Heavy
Avg Score:26.5%
Providers:0
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Kimi K2 Base
Avg Score:50.0%(+23.5%)
Providers:0