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GPT OSS 20B vs Kimi-k1.5
Comprehensive side-by-side LLM comparison
Kimi-k1.5 leads with 24.6% higher average benchmark score. Kimi-k1.5 supports multimodal inputs. GPT OSS 20B is available on 4 providers. Overall, Kimi-k1.5 is the stronger choice for coding tasks.
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OpenAI
GPT OSS 20B is a language model developed by OpenAI. The model shows competitive results across 7 benchmarks. It excels particularly in MMLU (85.3%), CodeForces (83.9%), GPQA (71.5%). It supports a 262K token context window for handling large documents. The model is available through 4 API providers. It's licensed for commercial use, making it suitable for enterprise applications. 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.
6 months newer
Kimi-k1.5
Moonshot AI
2025-01-20
GPT OSS 20B
OpenAI
2025-08-05
Performance Metrics
Context window and performance specifications
Average performance across 15 common benchmarks
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GPT OSS 20B
Average Score:24.4%
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Kimi-k1.5
Average Score:49.0%(+24.6%)
Provider Availability & Performance
Available providers and their performance metrics
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GPT OSS 20B
4 providers
Groq
Throughput: 1000 tok/s
Latency: 0.38ms
Novita
OpenAI
Throughput: 115 tok/s
Latency: 5.2ms
ZeroEval
Throughput: 1000 tok/s
Latency: 0.38ms
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GPT OSS 20B
Avg Score:24.4%
Providers:4
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Kimi-k1.5
Avg Score:49.0%(+24.6%)
Providers:0