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GPT-5 Codex vs Kimi-k1.5
Comprehensive side-by-side LLM comparison
Kimi-k1.5 leads with 66.1% higher average benchmark score. Kimi-k1.5 supports multimodal inputs. Overall, Kimi-k1.5 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-k1.5 is a multimodal language model developed by Moonshot AI. This model demonstrates exceptional performance with an average score of 81.7% across 9 benchmarks. It excels particularly in MATH-500 (96.2%), CLUEWSC (91.4%), C-Eval (88.3%). As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
7 months newer
Kimi-k1.5
Moonshot AI
2025-01-20
GPT-5 Codex
OpenAI
2025-09-15
Average performance across 10 common benchmarks
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GPT-5 Codex
Average Score:7.4%
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Kimi-k1.5
Average Score:73.5%(+66.1%)
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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-k1.5
0 providers
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GPT-5 Codex
Avg Score:7.4%
Providers:0
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Kimi-k1.5
Avg Score:73.5%(+66.1%)
Providers:0