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Gemma 3 4B vs GPT OSS 20B
Comprehensive side-by-side LLM comparison
GPT OSS 20B leads with 40.7% higher average benchmark score. Both models have similar pricing. Gemma 3 4B supports multimodal inputs. GPT OSS 20B is available on 4 providers. Overall, GPT OSS 20B is the stronger choice for coding tasks.
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Gemma 3 4B was developed as a compact yet capable open-source model, designed to strike a balance between performance and resource efficiency. Built with 4 billion parameters and instruction tuning, it provides a practical option for applications requiring moderate capability with manageable computational costs.
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OpenAI
GPT-OSS 20B was created as a smaller open-source variant, designed to balance capability with accessibility for researchers and developers. Built with 20 billion parameters, it provides a more approachable entry point for those seeking to work with open-source language models while benefiting from OpenAI's architectural insights.
4 months newer
Gemma 3 4B
2025-03-12
GPT OSS 20B
OpenAI
2025-08-05
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Pricing Comparison
Cost per million tokens (USD)
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Gemma 3 4B
Input:$0.02
Output:$0.04($0.19 cheaper)
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GPT OSS 20B
Input:$0.05
Output:$0.20
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Gemma 3 4B
Average Score:30.8%
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GPT OSS 20B
Average Score:71.5%(+40.7%)
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Knowledge Cutoff
Training data recency comparison
Gemma 3 4B
2024-08-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Gemma 3 4B
1 providers
DeepInfra
Throughput: 33 tok/s
Latency: 0.2ms
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GPT OSS 20B
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Gemma 3 4B
Avg Score:30.8%
Providers:1
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GPT OSS 20B
Avg Score:71.5%(+40.7%)
Providers:4