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Claude Opus 4.1 vs DeepSeek-V3.1
Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 13.7% higher average benchmark score. DeepSeek-V3.1 offers 95.7K more tokens in context window than Claude Opus 4.1. DeepSeek-V3.1 is $88.73 cheaper per million tokens. Claude Opus 4.1 supports multimodal inputs. Claude Opus 4.1 is available on 4 providers. Overall, Claude Opus 4.1 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
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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.
6 months newer
DeepSeek-V3.1
DeepSeek
2025-01-10
Claude Opus 4.1
Anthropic
2025-08-05
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Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
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DeepSeek-V3.1
Input:$0.27
Output:$1.00($88.73 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude Opus 4.1
Average Score:69.2%(+13.7%)
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DeepSeek-V3.1
Average Score:55.5%
Performance comparison across key benchmark categories
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Claude Opus 4.1
Coding74.5%(+8.5%)
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DeepSeek-V3.1
Coding66.0%
Provider Availability & Performance
Available providers and their performance metrics
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Claude Opus 4.1
4 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 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 Opus 4.1
Avg Score:69.2%(+13.7%)
Providers:4
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DeepSeek-V3.1
Avg Score:55.5%
Providers:2