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Claude Haiku 4.5 vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 9.5% higher average benchmark score. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
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Anthropic
Claude Haiku 4.5 continues Anthropic's tradition of fast, efficient models in the fourth generation Claude family. Designed to maintain the hallmark speed and cost-effectiveness of the Haiku line while incorporating advancements from the Claude 4 series, it serves applications requiring rapid processing and quick turnaround times.
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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.
3 months newer
Grok-4 Heavy
xAI
2025-07-09
Claude Haiku 4.5
Anthropic
2025-10-15
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Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Claude Haiku 4.5
Average Score:84.7%
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Grok-4 Heavy
Average Score:94.2%(+9.5%)
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Knowledge Cutoff
Training data recency comparison
Grok-4 Heavy
2024-12-31
Claude Haiku 4.5
2025-02-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude Haiku 4.5
1 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.3ms
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Grok-4 Heavy
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Claude Haiku 4.5
Avg Score:84.7%
Providers:1
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Grok-4 Heavy
Avg Score:94.2%(+9.5%)
Providers:0