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DeepSeek-V2.5 vs GPT OSS 120B
Comprehensive side-by-side LLM comparison
DeepSeek-V2.5 leads with 30.2% higher average benchmark score. GPT OSS 120B offers 245.8K more tokens in context window than DeepSeek-V2.5. Both models have similar pricing. GPT OSS 120B is available on 5 providers. Overall, DeepSeek-V2.5 is the stronger choice for coding tasks.
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DeepSeek
DeepSeek-V2.5 is a language model developed by DeepSeek. It achieves strong performance with an average score of 71.1% across 15 benchmarks. It excels particularly in GSM8k (95.1%), MT-Bench (90.2%), HumanEval (89.0%). The model is available through 3 API providers. Released in 2024, it represents DeepSeek's latest advancement in AI technology.
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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.
1 year newer
DeepSeek-V2.5
DeepSeek
2024-05-08
GPT OSS 120B
OpenAI
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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DeepSeek-V2.5
Input:$0.14
Output:$0.28($0.12 cheaper)
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GPT OSS 120B
Input:$0.09
Output:$0.45
Performance Metrics
Context window and performance specifications
Average performance across 21 common benchmarks
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DeepSeek-V2.5
Average Score:50.8%(+30.2%)
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GPT OSS 120B
Average Score:20.6%
Provider Availability & Performance
Available providers and their performance metrics
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DeepSeek-V2.5
3 providers
DeepInfra
Throughput: 63 tok/s
Latency: 0.5ms
DeepSeek
Throughput: 100 tok/s
Latency: 0.5ms
Hyperbolic
Throughput: 100 tok/s
Latency: 0.5ms
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DeepSeek-V2.5
Avg Score:50.8%(+30.2%)
Providers:3
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GPT OSS 120B
Avg Score:20.6%
Providers:5