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Kimi K2 0905 vs o3-mini
Comprehensive side-by-side LLM comparison
o3-mini leads with 5.6% higher average benchmark score. Kimi K2 0905 offers 224.3K more tokens in context window than o3-mini. Kimi K2 0905 is $2.40 cheaper per million tokens. Overall, o3-mini 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
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
7 months newer
o3-mini
OpenAI
2025-01-30
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($2.40 cheaper)
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o3-mini
Input:$1.10
Output:$4.40
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Kimi K2 0905
Average Score:81.8%
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o3-mini
Average Score:87.3%(+5.6%)
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Knowledge Cutoff
Training data recency comparison
o3-mini
2023-09-30
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Kimi K2 0905
2 providers
Novita
ZeroEval
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o3-mini
2 providers
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Kimi K2 0905
Avg Score:81.8%
Providers:2
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o3-mini
Avg Score:87.3%(+5.6%)
Providers:2