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GPT-5 Codex vs Kimi K2-Instruct-0905
Comprehensive side-by-side LLM comparison
Kimi K2-Instruct-0905 leads with 62.0% higher average benchmark score. Overall, Kimi K2-Instruct-0905 is the stronger choice for coding tasks.
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OpenAI
GPT-5 Codex is a language model developed by OpenAI. It achieves strong performance with an average score of 74.5% across 1 benchmarks. Notable strengths include SWE-Bench Verified (74.5%). Released in 2025, it represents OpenAI's latest advancement in AI technology.
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Moonshot AI
Kimi K2-Instruct-0905 is a language model developed by Moonshot AI. It achieves strong performance with an average score of 64.1% across 29 benchmarks. It excels particularly in MATH-500 (97.4%), MMLU-Redux (92.7%), IFEval (89.8%). It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
10 days newer
Kimi K2-Instruct-0905
Moonshot AI
2025-09-05
GPT-5 Codex
OpenAI
2025-09-15
Average performance across 28 common benchmarks
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GPT-5 Codex
Average Score:2.7%
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Kimi K2-Instruct-0905
Average Score:64.7%(+62.0%)
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Knowledge Cutoff
Training data recency comparison
GPT-5 Codex
2024-09-30
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5 Codex
0 providers
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Kimi K2-Instruct-0905
0 providers
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GPT-5 Codex
Avg Score:2.7%
Providers:0
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Kimi K2-Instruct-0905
Avg Score:64.7%(+62.0%)
Providers:0