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Claude Sonnet 4.5 vs DeepSeek-V3 0324
Comprehensive side-by-side LLM comparison
Claude Sonnet 4.5 leads with 15.0% higher average benchmark score. DeepSeek-V3 0324 offers 63.7K more tokens in context window than Claude Sonnet 4.5. DeepSeek-V3 0324 is $16.58 cheaper per million tokens. Claude Sonnet 4.5 supports multimodal inputs. Overall, Claude Sonnet 4.5 is the stronger choice for coding tasks.
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Anthropic
Claude Sonnet 4.5 was developed to bridge human thinking and machine assistance, allowing people to work with language and tools in a more conversational and natural way. Built with a focus on turning ideas into results, it represents an evolution in making AI feel less mechanical while maintaining strong capabilities across reasoning, coding, and collaborative tasks.
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DeepSeek
DeepSeek-V3-0324 represents a specific release iteration of DeepSeek-V3, developed to incorporate ongoing improvements and refinements. Built to provide enhanced stability and performance based on deployment learnings, it continues the evolution of the DeepSeek-V3 architecture with iterative enhancements.
6 months newer
DeepSeek-V3 0324
DeepSeek
2025-03-25
Claude Sonnet 4.5
Anthropic
2025-09-29
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Pricing Comparison
Cost per million tokens (USD)
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Claude Sonnet 4.5
Input:$3.00
Output:$15.00
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DeepSeek-V3 0324
Input:$0.28
Output:$1.14($16.58 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude Sonnet 4.5
Average Score:83.4%(+15.0%)
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DeepSeek-V3 0324
Average Score:68.4%
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Knowledge Cutoff
Training data recency comparison
Claude Sonnet 4.5
2025-01-31
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 Sonnet 4.5
2 providers
Anthropic
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
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Claude Sonnet 4.5
Avg Score:83.4%(+15.0%)
Providers:2
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DeepSeek-V3 0324
Avg Score:68.4%
Providers:1