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GPT-5 Codex vs Kimi K2 0905
Comprehensive side-by-side LLM comparison
Kimi K2 0905 leads with 61.4% higher average benchmark score. Kimi K2 0905 is available on 2 providers. Overall, Kimi K2 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 0905 is a language model developed by Moonshot AI. This model demonstrates exceptional performance with an average score of 84.0% across 6 benchmarks. It excels particularly in HumanEval (94.5%), MMLU (90.2%), MATH (89.1%). It supports a 524K token context window for handling large documents. The model is available through 2 API providers. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
10 days newer
Kimi K2 0905
Moonshot AI
2025-09-05
GPT-5 Codex
OpenAI
2025-09-15
Performance Metrics
Context window and performance specifications
Average performance across 7 common benchmarks
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GPT-5 Codex
Average Score:10.6%
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Kimi K2 0905
Average Score:72.0%(+61.4%)
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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 0905
2 providers
Novita
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GPT-5 Codex
Avg Score:10.6%
Providers:0
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Kimi K2 0905
Avg Score:72.0%(+61.4%)
Providers:2