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Claude Opus 4.1 vs Kimi K2 Instruct
Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 12.6% higher average benchmark score. Kimi K2 Instruct offers 30.1K more tokens in context window than Claude Opus 4.1. Kimi K2 Instruct is $87.13 cheaper per million tokens. Claude Opus 4.1 supports multimodal inputs. Claude Opus 4.1 is available on 4 providers. Overall, Claude Opus 4.1 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
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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.
25 days newer
Kimi K2 Instruct
Moonshot AI
2025-07-11
Claude Opus 4.1
Anthropic
2025-08-05
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Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
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Kimi K2 Instruct
Input:$0.57
Output:$2.30($87.13 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude Opus 4.1
Average Score:69.2%(+12.6%)
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Kimi K2 Instruct
Average Score:56.5%
Performance comparison across key benchmark categories
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Claude Opus 4.1
Coding74.5%(+2.9%)
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Kimi K2 Instruct
Coding71.6%
Provider Availability & Performance
Available providers and their performance metrics
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Claude Opus 4.1
4 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 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 Opus 4.1
Avg Score:69.2%(+12.6%)
Providers:4
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Kimi K2 Instruct
Avg Score:56.5%
Providers:1