Key Takeaways
Gemini 3 Pro Preview wins:
- Larger context window
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
- Has reasoning mode
- Supports tool calls
GPT-OSS-120b wins:
- Cheaper input tokens
- Cheaper output tokens
- Faster response time
Price Advantage
GPT-OSS-120b
Benchmark Advantage
Gemini 3 Pro Preview
Context Window
Gemini 3 Pro Preview
Speed
GPT-OSS-120b
Pricing Comparison
Price Comparison
| Metric | Gemini 3 Pro Preview | GPT-OSS-120b | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $2.00 | $0.04 | GPT-OSS-120b |
| Output (per 1M tokens) | $12.00 | $0.19 | GPT-OSS-120b |
| Cache Read (per 1M) | $200000.00 | N/A | Gemini 3 Pro Preview |
| Cache Write (per 1M) | $375000.00 | N/A | Gemini 3 Pro Preview |
Using a 3:1 input/output ratio, GPT-OSS-120b is 98% cheaper overall.
Gemini 3 Pro Preview Providers
Google AI Studio $2.00 (Cheapest)
Google $2.00 (Cheapest)
GPT-OSS-120b Providers
Chutes $0.04 (Cheapest)
SiliconFlow $0.05
Novita $0.05
Clarifai $0.09
Google $0.09
Benchmark Comparison
7
Benchmarks Compared
6
Gemini 3 Pro Preview Wins
0
GPT-OSS-120b Wins
Benchmark Scores
| Benchmark | Gemini 3 Pro Preview | GPT-OSS-120b | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 48.4 | 33.3 | |
Coding Index Code generation & understanding | 46.5 | 28.6 | |
Math Index Mathematical reasoning | 95.7 | 93.4 | |
MMLU Pro Academic knowledge | 89.8 | 80.8 | |
GPQA Graduate-level science | 90.8 | 78.2 | |
LiveCodeBench Competitive programming | 91.7 | 87.8 | |
Aider Real-world code editing | - | 41.8 | - |
Gemini 3 Pro Preview significantly outperforms in coding benchmarks.
Cost vs Quality
X-axis:
Y-axis:
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Gemini 3 Pro Preview
Other models
Context & Performance
Context Window
Gemini 3 Pro Preview
1,048,576
tokens
Max output: 65,536 tokens
GPT-OSS-120b
131,072
tokens
Gemini 3 Pro Preview has a 88% larger context window.
Speed Performance
| Metric | Gemini 3 Pro Preview | GPT-OSS-120b | Winner |
|---|---|---|---|
| Tokens/second | 132.8 tok/s | 311.5 tok/s | |
| Time to First Token | 30.65s | 0.47s |
GPT-OSS-120b responds 134% faster on average.
Capabilities
Feature Comparison
| Feature | Gemini 3 Pro Preview | GPT-OSS-120b |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Gemini 3 Pro Preview | GPT-OSS-120b |
|---|---|---|
| License | Proprietary | Open Source |
| Author | OpenAI | |
| Released | Nov 2025 | Aug 2025 |
Gemini 3 Pro Preview Modalities
Input
textimagefileaudiovideo
Output
text
GPT-OSS-120b Modalities
Input
text
Output
text