Key Takeaways
Phi 4 Reasoning Plus wins:
- No clear advantages in compared metrics
GPT-OSS-120b wins:
- Cheaper input tokens
- Cheaper output tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
Price Advantage
GPT-OSS-120b
Benchmark Advantage
GPT-OSS-120b
Context Window
GPT-OSS-120b
Speed
GPT-OSS-120b
Pricing Comparison
Price Comparison
| Metric | Phi 4 Reasoning Plus | GPT-OSS-120b | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.07 | $0.04 | GPT-OSS-120b |
| Output (per 1M tokens) | $0.35 | $0.10 | GPT-OSS-120b |
| Cache Read (per 1M) | N/A | $0.03 | GPT-OSS-120b |
Using a 3:1 input/output ratio, GPT-OSS-120b is 61% cheaper overall.
Phi 4 Reasoning Plus Providers
No provider data available
GPT-OSS-120b Providers
No provider data available
Benchmark Comparison
7
Benchmarks Compared
0
Phi 4 Reasoning Plus Wins
0
GPT-OSS-120b Wins
Benchmark Scores
| Benchmark | Phi 4 Reasoning Plus | GPT-OSS-120b | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | - | 24.5 | - |
Coding Index Code generation & understanding | - | 15.5 | - |
Math Index Mathematical reasoning | - | 66.7 | - |
MMLU Pro Academic knowledge | - | 77.5 | - |
GPQA Graduate-level science | - | 67.2 | - |
LiveCodeBench Competitive programming | - | 70.7 | - |
Aider Real-world code editing | - | 41.8 | - |
GPT-OSS-120b significantly outperforms in coding benchmarks.
Cost vs Quality
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Other models
Context & Performance
Context Window
Phi 4 Reasoning Plus
32,000
tokens
GPT-OSS-120b
131,072
tokens
GPT-OSS-120b has a 76% larger context window.
Speed Performance
| Metric | Phi 4 Reasoning Plus | GPT-OSS-120b | Winner |
|---|---|---|---|
| Tokens/second | N/A | 281.5 tok/s | |
| Time to First Token | N/A | 0.52s |
Capabilities
Feature Comparison
| Feature | Phi 4 Reasoning Plus | GPT-OSS-120b |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Phi 4 Reasoning Plus | GPT-OSS-120b |
|---|---|---|
| License | Open Source | Open Source |
| Author | Microsoft | OpenAI |
| Released | Unknown | Aug 2025 |
Phi 4 Reasoning Plus Modalities
Input
Output
GPT-OSS-120b Modalities
Input
text
Output
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