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GPT OSS 120B vs Kimi K2 0905
Comprehensive side-by-side LLM comparison
Kimi K2 0905 leads with 6.6% higher average benchmark score. Kimi K2 0905 offers 262.1K more tokens in context window than GPT OSS 120B. GPT OSS 120B is $2.56 cheaper per million tokens. GPT OSS 120B is available on 5 providers. Overall, Kimi K2 0905 is the stronger choice for coding tasks.
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OpenAI
GPT OSS 120B is a language model developed by OpenAI. It achieves strong performance with an average score of 61.7% across 7 benchmarks. It excels particularly in MMLU (90.0%), CodeForces (87.4%), GPQA (80.1%). It supports a 262K token context window for handling large documents. The model is available through 5 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 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.
1 month newer
GPT OSS 120B
OpenAI
2025-08-05
Kimi K2 0905
Moonshot AI
2025-09-05
Pricing Comparison
Cost per million tokens (USD)
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GPT OSS 120B
Input:$0.09
Output:$0.45($2.56 cheaper)
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Kimi K2 0905
Input:$0.60
Output:$2.50
Performance Metrics
Context window and performance specifications
Average performance across 11 common benchmarks
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GPT OSS 120B
Average Score:39.3%
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Kimi K2 0905
Average Score:45.8%(+6.6%)
Provider Availability & Performance
Available providers and their performance metrics
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GPT OSS 120B
5 providers
DeepInfra
Groq
Throughput: 500 tok/s
Latency: 0.5ms
Novita
OpenAI
Throughput: 115 tok/s
Latency: 5.2ms
ZeroEval
Throughput: 500 tok/s
Latency: 0.5ms
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GPT OSS 120B
Avg Score:39.3%
Providers:5
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Kimi K2 0905
Avg Score:45.8%(+6.6%)
Providers:2