Yi-LargevsClaude Opus 4
01.AI vs Anthropic — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Yi-Large | Claude Opus 4 |
|---|---|---|
| Provider | ||
| Arena Rank | — | #1 |
| Context Window | 32K | 200K |
| Input Pricing | Undisclosed/1M tokens | $5.00/1M tokens |
| Output Pricing | Undisclosed/1M tokens | $25.00/1M tokens |
| Parameters | Undisclosed | Undisclosed |
| Open Source | No | No |
| Best For | Complex reasoning, multilingual, analysis | Complex reasoning, coding, agentic tasks |
| Release Date | May 13, 2024 | May 22, 2025 |
Yi-Large
Yi-Large, developed by 01.AI, is the most powerful model from Kai-Fu Lee's AI company, designed with particular strength in Chinese and English bilingual tasks. The model features a 32K token context window and demonstrates competitive performance on general reasoning, coding, and knowledge-intensive benchmarks. 01.AI built Yi-Large to excel at practical enterprise applications with attention to Chinese language understanding, cultural context, and business use cases prevalent in the Chinese market. The model handles complex Chinese text including classical Chinese, technical documentation, and cross-lingual tasks. 01.AI, founded by the former president of Google China, has rapidly built one of the most well-funded AI companies in China. Yi-Large competes in the Chinese enterprise AI market alongside Qwen, Ernie, GLM, and Baichuan for commercial deployments.
View 01.AI profile →Claude Opus 4
Claude Opus 4 is Anthropic's most powerful AI model, holding the #1 position on the Chatbot Arena leaderboard. It represents a breakthrough in extended thinking and agentic capabilities, able to work autonomously on complex multi-step tasks for hours. With a 200K token context window, it excels at analyzing entire codebases, lengthy legal documents, and research papers in a single pass. The model demonstrates exceptional performance in coding (setting new benchmarks on SWE-bench), advanced reasoning, and nuanced writing tasks. Its agentic capabilities allow it to use tools, navigate computers, and execute multi-step workflows with minimal human oversight. Opus 4 is the preferred choice for enterprises requiring the highest quality output on mission-critical tasks where accuracy and depth matter more than speed or cost.
View Anthropic profile →Key Differences: Yi-Large vs Claude Opus 4
Claude Opus 4 supports a larger context window (200K), allowing it to process longer documents in a single request.
When to use Yi-Large
- +Your use case involves complex reasoning, multilingual, analysis
When to use Claude Opus 4
- +You need to process long documents (200K context)
- +Your use case involves complex reasoning, coding, agentic tasks
The Verdict
Claude Opus 4 wins our head-to-head comparison with 4 out of 5 category wins. It's the stronger choice for complex reasoning, coding, agentic tasks, though Yi-Large holds an edge in complex reasoning, multilingual, analysis.
Last compared: April 2026 · Data sourced from public benchmarks and official pricing pages