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Claude Sonnet 4 vs Grok Code Fast 1
Comprehensive side-by-side LLM comparison
Claude Sonnet 4 leads with 1.9% higher average benchmark score. Claude Sonnet 4 offers 62.0K more tokens in context window than Grok Code Fast 1. Grok Code Fast 1 is $16.30 cheaper per million tokens. Claude Sonnet 4 supports multimodal inputs. Claude Sonnet 4 is available on 4 providers. Both models have their strengths depending on your specific coding needs.
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Anthropic
Claude Sonnet 4 was created as the balanced offering in the Claude 4 family, designed to provide strong intelligence with practical speed and cost efficiency. Built to serve as a versatile workhorse for diverse applications, it balances advanced capabilities with operational considerations for everyday enterprise and consumer use.
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xAI
Grok Code Fast was developed as a specialized coding model optimized for speed, designed to provide rapid code completion, generation, and assistance. Built to serve developers requiring quick feedback and iterative coding support, it combines programming expertise with low-latency responses.
3 months newer
Claude Sonnet 4
Anthropic
2025-05-22
Grok Code Fast 1
xAI
2025-08-28
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Pricing Comparison
Cost per million tokens (USD)
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Claude Sonnet 4
Input:$3.00
Output:$15.00
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Grok Code Fast 1
Input:$0.20
Output:$1.50($16.30 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude Sonnet 4
Average Score:72.7%(+1.9%)
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Grok Code Fast 1
Average Score:70.8%
Performance comparison across key benchmark categories
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Claude Sonnet 4
Coding72.7%(+1.9%)
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Grok Code Fast 1
Coding70.8%
Provider Availability & Performance
Available providers and their performance metrics
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Claude Sonnet 4
4 providers
Anthropic
Throughput: 42 tok/s
Latency: 0.4ms
Bedrock
Throughput: 101 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
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Claude Sonnet 4
Avg Score:72.7%(+1.9%)
Providers:4
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Grok Code Fast 1
Avg Score:70.8%
Providers:1