Comprehensive side-by-side LLM comparison
Claude Sonnet 4 leads with 9.7% higher average benchmark score. Claude Sonnet 4 supports multimodal inputs. Claude Sonnet 4 is available on 4 providers. Overall, Claude Sonnet 4 is the stronger choice for coding tasks.
Anthropic
Claude Sonnet 4 was created as the balanced offering in the Claude 4 family, designed to provide strong intelligence with practical speed and cost efficiency. Built to serve as a versatile workhorse for diverse applications, it balances advanced capabilities with operational considerations for everyday enterprise and consumer use.
Moonshot AI
Kimi K2 Instruct-0905 represents a specific release iteration of the K2 Instruct model, developed to incorporate refinements and improvements. Built to provide enhanced instruction-following based on deployment feedback, it continues the evolution of Moonshot's instruction-tuned offerings.
3 months newer

Claude Sonnet 4
Anthropic
2025-05-22

Kimi K2-Instruct-0905
Moonshot AI
2025-09-05
Context window and performance specifications
Average performance across 4 common benchmarks

Claude Sonnet 4

Kimi K2-Instruct-0905
Performance comparison across key benchmark categories

Claude Sonnet 4

Kimi K2-Instruct-0905
Available providers and their performance metrics

Claude Sonnet 4
Anthropic
Bedrock
ZeroEval

Claude Sonnet 4

Kimi K2-Instruct-0905

Claude Sonnet 4

Kimi K2-Instruct-0905

Kimi K2-Instruct-0905