Key Takeaways
Phi 4 Reasoning Plus wins:
- Cheaper input tokens
- Cheaper output tokens
GPT-5.2 Pro wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
Price Advantage
Phi 4 Reasoning Plus
Benchmark Advantage
GPT-5.2 Pro
Context Window
GPT-5.2 Pro
Speed
GPT-5.2 Pro
Pricing Comparison
Price Comparison
| Metric | Phi 4 Reasoning Plus | GPT-5.2 Pro | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.07 | $10.50 | Phi 4 Reasoning Plus |
| Output (per 1M tokens) | $0.35 | $84.00 | Phi 4 Reasoning Plus |
Using a 3:1 input/output ratio, Phi 4 Reasoning Plus is 100% cheaper overall.
Phi 4 Reasoning Plus Providers
No provider data available
GPT-5.2 Pro Providers
No provider data available
Benchmark Comparison
6
Benchmarks Compared
0
Phi 4 Reasoning Plus Wins
0
GPT-5.2 Pro Wins
Benchmark Scores
| Benchmark | Phi 4 Reasoning Plus | GPT-5.2 Pro | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | - | 51.3 | - |
Coding Index Code generation & understanding | - | 48.7 | - |
Math Index Mathematical reasoning | - | 99.0 | - |
MMLU Pro Academic knowledge | - | 87.4 | - |
GPQA Graduate-level science | - | 90.3 | - |
LiveCodeBench Competitive programming | - | 88.9 | - |
GPT-5.2 Pro 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-5.2 Pro
400,000
tokens
GPT-5.2 Pro has a 92% larger context window.
Speed Performance
| Metric | Phi 4 Reasoning Plus | GPT-5.2 Pro | Winner |
|---|---|---|---|
| Tokens/second | N/A | 78.3 tok/s | |
| Time to First Token | N/A | 124.47s |
Capabilities
Feature Comparison
| Feature | Phi 4 Reasoning Plus | GPT-5.2 Pro |
|---|---|---|
| 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-5.2 Pro |
|---|---|---|
| License | Open Source | Proprietary |
| Author | Microsoft | OpenAI |
| Released | Unknown | Dec 2025 |
Phi 4 Reasoning Plus Modalities
Input
Output
GPT-5.2 Pro Modalities
Input
imagetextfile
Output
text