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Kimi K2 0905 vs o1
Comprehensive side-by-side LLM comparison
o1 leads with 1.4% higher average benchmark score. Kimi K2 0905 offers 224.3K more tokens in context window than o1. Kimi K2 0905 is $71.90 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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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 was developed as part of OpenAI's reasoning-focused model series, designed to spend more time thinking before responding. Built to excel at complex reasoning tasks in science, coding, and mathematics, it employs extended internal reasoning processes to solve harder problems than traditional language models through careful step-by-step analysis.
8 months newer
o1
OpenAI
2024-12-17
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
Input:$15.00
Output:$60.00
Performance Metrics
Context window and performance specifications
Average performance across 5 common benchmarks
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Kimi K2 0905
Average Score:84.3%
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o1
Average Score:85.7%(+1.4%)
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
2 providers
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Kimi K2 0905
Avg Score:84.3%
Providers:2
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o1
Avg Score:85.7%(+1.4%)
Providers:2