Summarization demands precision, brevity, and faithfulness. See how Claude and DeepSeek stack up across five dimensions critical to high-quality summaries.
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Task-specific scoring for summarization workloads across 5 dimensions.
| Dimension | Claude Sonnet 4.5 | DeepSeek V3 | Edge |
|---|---|---|---|
| Key Point Extraction | Consistently identifies the most important points even in lengthy, complex documents. Prioritizes by significance. | Extracts main points effectively from well-structured documents. Can over-emphasize early sections or miss buried nuances. | |
| Brevity | Concise summaries that respect length constraints while preserving essential information. Avoids filler phrases. | Compact summaries efficiently, though occasionally includes unnecessary qualifiers or restates points. | |
| Factual Accuracy | High fidelity to source material with extremely low hallucination rates. Distinguishes stated facts from inferences. | Generally faithful but has slightly higher tendency to introduce subtle inaccuracies or conflate distinct points. | |
| Structure | Logical grouping, clear hierarchies, and smooth transitions. Adapts structure to match document type. | Adequately structured with clear sections. Less adaptive to different formats, tending toward uniform style. | |
| Technical Content | Handles domain-specific terminology accurately. Leverages 200K context for lengthy technical documents. | Competent with technical content, especially in math and CS domains. May oversimplify in fields like medicine or law. | tie |
Choose Claude Sonnet 4.5 for summarizing lengthy documents, research papers, legal texts, or content where factual accuracy is non-negotiable.
Choose DeepSeek V3 for high-volume summarization of shorter, well-structured content where cost efficiency outweighs maximum precision.
Claude Sonnet 4.5 is the stronger summarization model with superior key point extraction, factual accuracy, and structural adaptation. Its 200K context gives it a decisive advantage for long documents. DeepSeek V3 is a viable budget alternative for straightforward tasks.
Use LLMWise Compare mode to test Claude Sonnet 4.5 vs DeepSeek V3 on your own summarization prompts.
You only pay credits per request. No monthly subscription. Paid credits never expire.
Replace multiple AI subscriptions with one wallet that includes routing, failover, and optimization.