Comprehensive side-by-side LLM comparison
Kimi-k1.5 leads with 9.0% higher average benchmark score. Claude Opus 4.1 is available on 4 providers. Overall, Kimi-k1.5 is the stronger choice for coding tasks.
Anthropic
Claude Opus 4.1 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 72.7% across 8 benchmarks. It excels particularly in MMMLU (89.5%), TAU-bench Retail (82.4%), GPQA (80.9%). It supports a 232K 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-k1.5 is a multimodal language model developed by Moonshot AI. This model demonstrates exceptional performance with an average score of 81.7% across 9 benchmarks. It excels particularly in MATH-500 (96.2%), CLUEWSC (91.4%), C-Eval (88.3%). As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
6 months newer
Kimi-k1.5
Moonshot AI
2025-01-20
Claude Opus 4.1
Anthropic
2025-08-05
Context window and performance specifications
Average performance across 17 common benchmarks
Claude Opus 4.1
Kimi-k1.5
Available providers and their performance metrics
Claude Opus 4.1
Anthropic
Bedrock
ZeroEval
Claude Opus 4.1
Kimi-k1.5
Claude Opus 4.1
Kimi-k1.5
Kimi-k1.5