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GPT-OSS-20B vs Grok 4
Comprehensive side-by-side LLM comparison
Grok 4 leads with 7.4% higher average benchmark score. Grok 4 offers 146.4K more tokens in context window than GPT-OSS-20B. Grok 4 is $Infinity cheaper per million tokens. Grok 4 supports multimodal inputs. Overall, Grok 4 is the stronger choice for coding tasks.
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OpenAI
GPT-OSS-20B is an open-weight large language model with 20 billion parameters from OpenAI's open-source model initiative. It targets deployments requiring a smaller, efficient model that can run on consumer or mid-tier hardware while maintaining strong reasoning and coding capabilities relative to its size.
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xAI
Grok 4, released by xAI on July 10, 2025, is a large language model featuring first-principles reasoning and comprehensive multimodal support. It features a 260K token context window and demonstrated strong performance on advanced reasoning and coding benchmarks. Grok 4 targets complex multi-step reasoning tasks, scientific analysis, and agentic workflows via the xAI API.
26 days newer
Grok 4
xAI
2025-07-10
GPT-OSS-20B
OpenAI
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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GPT-OSS-20B
Input:$Infinity
Output:$Infinity
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Grok 4
Input:$5.00
Output:$25.00($Infinity cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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GPT-OSS-20B
Average Score:80.1%
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Grok 4
Average Score:87.5%(+7.4%)
Performance comparison across key benchmark categories
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GPT-OSS-20B
Science80.1%
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Grok 4
Science87.5%(+7.4%)
Provider Availability & Performance
Available providers and their performance metrics
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GPT-OSS-20B
1 providers
Hugging Face
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Grok 4
1 providers
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GPT-OSS-20B
Avg Score:80.1%
Providers:1
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Grok 4
Avg Score:87.5%(+7.4%)
Providers:1