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GPT OSS 20B vs Grok-2
Comprehensive side-by-side LLM comparison
Grok-2 leads with 18.9% higher average benchmark score. GPT OSS 20B offers 126.1K more tokens in context window than Grok-2. GPT OSS 20B is $11.75 cheaper per million tokens. Grok-2 supports multimodal inputs. GPT OSS 20B is available on 4 providers. Overall, Grok-2 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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xAI
Grok-2 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 76.5% across 8 benchmarks. It excels particularly in DocVQA (93.6%), HumanEval (88.4%), MMLU (87.5%). It supports a 136K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents xAI's latest advancement in AI technology.
11 months newer
Grok-2
xAI
2024-08-13
GPT OSS 20B
OpenAI
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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GPT OSS 20B
Input:$0.05
Output:$0.20($11.75 cheaper)
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Grok-2
Input:$2.00
Output:$10.00
Performance Metrics
Context window and performance specifications
Average performance across 13 common benchmarks
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GPT OSS 20B
Average Score:28.2%
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Grok-2
Average Score:47.1%(+18.9%)
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:28.2%
Providers:4
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Grok-2
Avg Score:47.1%(+18.9%)
Providers:1