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Grok-4 Heavy vs Kimi-k1.5
Comprehensive side-by-side LLM comparison
Kimi-k1.5 leads with 17.2% higher average benchmark score. Overall, Kimi-k1.5 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-k1.5 is a multimodal language model developed by Moonshot AI. This model demonstrates exceptional performance with an average score of 81.7% across 9 benchmarks. It excels particularly in MATH-500 (96.2%), CLUEWSC (91.4%), C-Eval (88.3%). As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
5 months newer
Kimi-k1.5
Moonshot AI
2025-01-20
Grok-4 Heavy
xAI
2025-07-09
Average performance across 15 common benchmarks
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Grok-4 Heavy
Average Score:31.8%
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Kimi-k1.5
Average Score:49.0%(+17.2%)
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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-k1.5
0 providers
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Grok-4 Heavy
Avg Score:31.8%
Providers:0
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Kimi-k1.5
Avg Score:49.0%(+17.2%)
Providers:0