Key Takeaways
Gemma 3n 4B wins:
- Cheaper input tokens
- Cheaper output tokens
- Supports tool calls
GPT-OSS-20b wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
Price Advantage
Gemma 3n 4B
Benchmark Advantage
GPT-OSS-20b
Context Window
GPT-OSS-20b
Speed
GPT-OSS-20b
Pricing Comparison
Price Comparison
| Metric | Gemma 3n 4B | GPT-OSS-20b | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.02 | $0.03 | Gemma 3n 4B |
| Output (per 1M tokens) | $0.04 | $0.14 | Gemma 3n 4B |
Using a 3:1 input/output ratio, Gemma 3n 4B is 57% cheaper overall.
Gemma 3n 4B Providers
Together $0.02 (Cheapest)
GPT-OSS-20b Providers
DeepInfra $0.03 (Cheapest)
Parasail $0.04
Chutes $0.04
Novita $0.04
Clarifai $0.04
Benchmark Comparison
7
Benchmarks Compared
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Gemma 3n 4B Wins
6
GPT-OSS-20b Wins
Benchmark Scores
| Benchmark | Gemma 3n 4B | GPT-OSS-20b | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 6.3 | 24.5 | |
Coding Index Code generation & understanding | 4.2 | 18.5 | |
Math Index Mathematical reasoning | 14.3 | 89.3 | |
MMLU Pro Academic knowledge | 48.8 | 74.8 | |
GPQA Graduate-level science | 29.6 | 68.8 | |
LiveCodeBench Competitive programming | 14.6 | 77.7 | |
AIME Competition math | 13.7 | - | - |
GPT-OSS-20b significantly outperforms in coding benchmarks.
Cost vs Quality
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Gemma 3n 4B
Other models
Context & Performance
Context Window
Gemma 3n 4B
32,768
tokens
GPT-OSS-20b
131,072
tokens
GPT-OSS-20b has a 75% larger context window.
Speed Performance
| Metric | Gemma 3n 4B | GPT-OSS-20b | Winner |
|---|---|---|---|
| Tokens/second | 38.4 tok/s | 307.3 tok/s | |
| Time to First Token | 0.37s | 0.52s |
GPT-OSS-20b responds 700% faster on average.
Capabilities
Feature Comparison
| Feature | Gemma 3n 4B | GPT-OSS-20b |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Gemma 3n 4B | GPT-OSS-20b |
|---|---|---|
| License | Open Source | Open Source |
| Author | OpenAI | |
| Released | May 2025 | Aug 2025 |
Gemma 3n 4B Modalities
Input
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Output
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GPT-OSS-20b Modalities
Input
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Output
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