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Claude 3.5 Sonnet vs Grok 4
Comprehensive side-by-side LLM comparison
Grok 4 leads with 32.5% higher average benchmark score. Grok 4 offers 70.4K more tokens in context window than Claude 3.5 Sonnet. Claude 3.5 Sonnet is $12.00 cheaper per million tokens. Claude 3.5 Sonnet is available on 3 providers. Overall, Grok 4 is the stronger choice for coding tasks.
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Anthropic
Claude 3.5 Sonnet, updated by Anthropic in October 2024 (originally released June 2024), is a large language model from the Claude 3.5 family that delivered strong performance in coding, reasoning, and instruction-following at its release. It supports a 200K token context window, 8K maximum output tokens, and native image understanding including screenshot analysis and document comprehension. Claude 3.5 Sonnet targets general-purpose development tasks, document analysis, and applications requiring reliable instruction following with visual input support.
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xAI
Grok 4, released by xAI on July 10, 2025, is a large language model featuring first-principles reasoning and comprehensive multimodal support. It features a 260K token context window and demonstrated strong performance on advanced reasoning and coding benchmarks. Grok 4 targets complex multi-step reasoning tasks, scientific analysis, and agentic workflows via the xAI API.
8 months newer
Claude 3.5 Sonnet
Anthropic
2024-10-22
Grok 4
xAI
2025-07-10
Pricing Comparison
Cost per million tokens (USD)
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Claude 3.5 Sonnet
Input:$3.00
Output:$15.00($12.00 cheaper)
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Grok 4
Input:$5.00
Output:$25.00
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude 3.5 Sonnet
Average Score:55.0%
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Grok 4
Average Score:87.5%(+32.5%)
Performance comparison across key benchmark categories
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Claude 3.5 Sonnet
Science55.0%
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Grok 4
Science87.5%(+32.5%)
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Knowledge Cutoff
Training data recency comparison
Claude 3.5 Sonnet
2024-04
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 3.5 Sonnet
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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Grok 4
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Claude 3.5 Sonnet
Avg Score:55.0%
Providers:3
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Grok 4
Avg Score:87.5%(+32.5%)
Providers:1