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Grok-4 Heavy vs Kimi K2 Instruct
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 36.6% higher average benchmark score. Grok-4 Heavy supports multimodal inputs. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
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xAI
Grok 4 Heavy was created as a larger, more capable variant of Grok 4, designed to provide maximum reasoning depth and analytical capability. Built for the most demanding applications requiring sophisticated problem-solving, it represents xAI's flagship offering in the fourth generation.
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Moonshot AI
Kimi K2 Instruct was developed as the instruction-tuned version of Kimi K2, designed to follow user instructions reliably across diverse tasks. Built to serve general-purpose conversational and task-completion applications, it provides Moonshot's accessible interface for language AI.
2 days newer
Grok-4 Heavy
xAI
2025-07-09
Kimi K2 Instruct
Moonshot AI
2025-07-11
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Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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Grok-4 Heavy
Average Score:79.7%(+36.6%)
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Kimi K2 Instruct
Average Score:43.1%
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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 Instruct
1 providers
Novita
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Grok-4 Heavy
Avg Score:79.7%(+36.6%)
Providers:0
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Kimi K2 Instruct
Avg Score:43.1%
Providers:1