Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 27.2% higher average benchmark score. DeepSeek-V3 offers 30.1K more tokens in context window than Claude Opus 4.1. DeepSeek-V3 is $88.63 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.
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.
DeepSeek
DeepSeek-V3 was introduced as a major architectural advancement, developed with 671B mixture-of-experts parameters and trained on 14.8 trillion tokens. Built to be three times faster than V2 while maintaining open-source availability, it demonstrates competitive performance against frontier closed-source models and represents a significant leap in efficient large-scale model design.
7 months newer

DeepSeek-V3
DeepSeek
2024-12-25

Claude Opus 4.1
Anthropic
2025-08-05
Cost per million tokens (USD)

Claude Opus 4.1

DeepSeek-V3
Context window and performance specifications
Average performance across 2 common benchmarks

Claude Opus 4.1

DeepSeek-V3
Performance comparison across key benchmark categories

Claude Opus 4.1

DeepSeek-V3
Available providers and their performance metrics

Claude Opus 4.1
Anthropic
Bedrock
ZeroEval

Claude Opus 4.1

DeepSeek-V3

Claude Opus 4.1

DeepSeek-V3

DeepSeek-V3
DeepSeek