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Claude Sonnet 4 vs DeepSeek-V3.1
Comprehensive side-by-side LLM comparison
Claude Sonnet 4 leads with 8.0% higher average benchmark score. Claude Sonnet 4 offers 320 more tokens in context window than DeepSeek-V3.1. DeepSeek-V3.1 is $16.73 cheaper per million tokens. Claude Sonnet 4 supports multimodal inputs. Claude Sonnet 4 is available on 4 providers. Overall, Claude Sonnet 4 is the stronger choice for coding tasks.
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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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DeepSeek
DeepSeek-V3.1 was developed as an incremental advancement over DeepSeek-V3, designed to refine the mixture-of-experts architecture with improved training techniques. Built to enhance quality and efficiency while maintaining the open-source philosophy, it represents continued iteration on DeepSeek's flagship model line.
4 months newer
DeepSeek-V3.1
DeepSeek
2025-01-10
Claude Sonnet 4
Anthropic
2025-05-22
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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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DeepSeek-V3.1
Input:$0.27
Output:$1.00($16.73 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude Sonnet 4
Average Score:63.5%(+8.0%)
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DeepSeek-V3.1
Average Score:55.5%
Performance comparison across key benchmark categories
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Claude Sonnet 4
Coding72.7%(+6.7%)
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DeepSeek-V3.1
Coding66.0%
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:63.5%(+8.0%)
Providers:4
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DeepSeek-V3.1
Avg Score:55.5%
Providers:2