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Claude 3.5 Haiku vs Grok 4 Fast
Comprehensive side-by-side LLM comparison
Grok 4 Fast leads with 44.1% higher average benchmark score. Grok 4 Fast offers 1.6M more tokens in context window than Claude 3.5 Haiku. Grok 4 Fast is $4.10 cheaper per million tokens. Grok 4 Fast supports multimodal inputs. Claude 3.5 Haiku is available on 3 providers. Overall, Grok 4 Fast is the stronger choice for coding tasks.
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Anthropic
Claude 3.5 Haiku was developed as the next generation of Anthropic's fastest model, offering similar speed to Claude 3 Haiku while surpassing Claude 3 Opus on many intelligence benchmarks. Built with low latency, improved instruction following, and accurate tool use, it serves user-facing products, specialized sub-agent tasks, and data-heavy applications.
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xAI
Grok 4 Fast is a multimodal language model developed by xAI. It achieves strong performance with an average score of 73.0% across 7 benchmarks. It excels particularly in SimpleQA (95.0%), HMMT 2025 (93.3%), AIME 2025 (92.0%). With a 2.0M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 1 API provider. 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.
10 months newer
Claude 3.5 Haiku
Anthropic
2024-10-22
Grok 4 Fast
xAI
2025-08-28
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Pricing Comparison
Cost per million tokens (USD)
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Claude 3.5 Haiku
Input:$0.80
Output:$4.00
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Grok 4 Fast
Input:$0.20
Output:$0.50($4.10 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude 3.5 Haiku
Average Score:41.6%
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Grok 4 Fast
Average Score:85.7%(+44.1%)
Provider Availability & Performance
Available providers and their performance metrics
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Claude 3.5 Haiku
3 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.3ms
Bedrock
Throughput: 104 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
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Claude 3.5 Haiku
Avg Score:41.6%
Providers:3
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Grok 4 Fast
Avg Score:85.7%(+44.1%)
Providers:1