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Claude Sonnet 4 vs Kimi K2 Instruct
Comprehensive side-by-side LLM comparison
Claude Sonnet 4 leads with 7.0% higher average benchmark score. Claude Sonnet 4 offers 65.9K more tokens in context window than Kimi K2 Instruct. Kimi K2 Instruct is $15.13 cheaper per million tokens. 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.
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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.
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Moonshot AI
Kimi K2 Instruct was developed as the instruction-tuned version of Kimi K2, designed to follow user instructions reliably across diverse tasks. Built to serve general-purpose conversational and task-completion applications, it provides Moonshot's accessible interface for language AI.
1 month newer
Claude Sonnet 4
Anthropic
2025-05-22
Kimi K2 Instruct
Moonshot AI
2025-07-11
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Pricing Comparison
Cost per million tokens (USD)
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Claude Sonnet 4
Input:$3.00
Output:$15.00
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Kimi K2 Instruct
Input:$0.57
Output:$2.30($15.13 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude Sonnet 4
Average Score:63.5%(+7.0%)
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Kimi K2 Instruct
Average Score:56.5%
Performance comparison across key benchmark categories
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Claude Sonnet 4
Coding72.7%(+1.1%)
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Kimi K2 Instruct
Coding71.6%
Provider Availability & Performance
Available providers and their performance metrics
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Claude Sonnet 4
4 providers
Anthropic
Throughput: 42 tok/s
Latency: 0.4ms
Bedrock
Throughput: 101 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
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Claude Sonnet 4
Avg Score:63.5%(+7.0%)
Providers:4
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Kimi K2 Instruct
Avg Score:56.5%
Providers:1