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Kimi K2 0905 vs o1-preview
Comprehensive side-by-side LLM comparison
Kimi K2 0905 leads with 8.9% higher average benchmark score. Kimi K2 0905 offers 363.5K more tokens in context window than o1-preview. Kimi K2 0905 is $71.90 cheaper per million tokens. Overall, Kimi K2 0905 is the stronger choice for coding tasks.
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Moonshot AI
Kimi K2 was introduced as the second generation of Moonshot's language model family, designed to provide enhanced capabilities across language understanding and generation. Built with architectural improvements and expanded training, it represents a significant advancement in Moonshot's model offerings.
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OpenAI
o1-preview was introduced as an early version of OpenAI's reasoning model series, designed to demonstrate the potential of AI models that engage in extended thinking before responding. Built to solve complex problems through deliberate reasoning processes, it represented an initial step toward more thoughtful and analytical AI systems.
11 months newer
o1-preview
OpenAI
2024-09-12
Kimi K2 0905
Moonshot AI
2025-09-05
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Pricing Comparison
Cost per million tokens (USD)
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Kimi K2 0905
Input:$0.60
Output:$2.50($71.90 cheaper)
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o1-preview
Input:$15.00
Output:$60.00
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Kimi K2 0905
Average Score:81.8%(+8.9%)
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o1-preview
Average Score:72.9%
Provider Availability & Performance
Available providers and their performance metrics
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Kimi K2 0905
2 providers
Novita
ZeroEval
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o1-preview
2 providers
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Kimi K2 0905
Avg Score:81.8%(+8.9%)
Providers:2
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o1-preview
Avg Score:72.9%
Providers:2