Comprehensive side-by-side LLM comparison
Kimi K2 Base leads with 17.2% higher average benchmark score. Claude Sonnet 4 supports multimodal inputs. Claude Sonnet 4 is available on 4 providers. Overall, Kimi K2 Base is the stronger choice for coding tasks.
Anthropic
Claude Sonnet 4 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 69.4% across 8 benchmarks. It excels particularly in MMMLU (86.5%), TAU-bench Retail (80.5%), GPQA (75.4%). It supports a 328K token context window for handling large documents. The model is available through 4 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.
Moonshot AI
Kimi K2 Base is a language model developed by Moonshot AI. It achieves strong performance with an average score of 69.2% across 13 benchmarks. It excels particularly in C-Eval (92.5%), GSM8k (92.1%), MMLU-redux-2.0 (90.2%). It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
1 month newer
Claude Sonnet 4
Anthropic
2025-05-22
Kimi K2 Base
Moonshot AI
2025-07-11
Context window and performance specifications
Average performance across 20 common benchmarks
Claude Sonnet 4
Kimi K2 Base
Available providers and their performance metrics
Claude Sonnet 4
Anthropic
Bedrock
ZeroEval
Claude Sonnet 4
Kimi K2 Base
Claude Sonnet 4
Kimi K2 Base
Kimi K2 Base