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Claude Sonnet 4.5 vs DeepSeek-V3 0324
Comprehensive side-by-side LLM comparison
Claude Sonnet 4.5 leads with 25.4% 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 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 75.8% across 9 benchmarks. It excels particularly in MMMLU (89.1%), AIME 2025 (87.0%), TAU-bench Retail (86.2%). It supports a 264K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Anthropic's latest advancement in AI technology.
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DeepSeek
DeepSeek-V3 0324 is a language model developed by DeepSeek. It achieves strong performance with an average score of 70.4% across 5 benchmarks. It excels particularly in MATH-500 (94.0%), MMLU-Pro (81.2%), GPQA (68.4%). It supports a 328K token context window for handling large documents. The model is available through 1 API provider. Released in 2025, it represents DeepSeek's latest advancement in AI technology.
6 months newer
DeepSeek-V3 0324
DeepSeek
2025-03-25
Claude Sonnet 4.5
Anthropic
2025-09-29
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 13 common benchmarks
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Claude Sonnet 4.5
Average Score:52.5%(+25.4%)
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DeepSeek-V3 0324
Average Score:27.1%
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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:52.5%(+25.4%)
Providers:2
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DeepSeek-V3 0324
Avg Score:27.1%
Providers:1