Key Takeaways
DeepSeek V3.1 Nex N1 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
DeepSeek V3.1 Nex N1
Benchmark Advantage
GPT-5.2 Pro
Context Window
GPT-5.2 Pro
Speed
GPT-5.2 Pro
Pricing Comparison
Price Comparison
| Metric | DeepSeek V3.1 Nex N1 | GPT-5.2 Pro | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.27 | $21.00 | DeepSeek V3.1 Nex N1 |
| Output (per 1M tokens) | $1.00 | $168.00 | DeepSeek V3.1 Nex N1 |
Using a 3:1 input/output ratio, DeepSeek V3.1 Nex N1 is 99% cheaper overall.
DeepSeek V3.1 Nex N1 Providers
SiliconFlow $0.27 (Cheapest)
GPT-5.2 Pro Providers
OpenAI $21.00 (Cheapest)
Benchmark Comparison
6
Benchmarks Compared
0
DeepSeek V3.1 Nex N1 Wins
0
GPT-5.2 Pro Wins
Benchmark Scores
| Benchmark | DeepSeek V3.1 Nex N1 | GPT-5.2 Pro | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | - | 51.2 | - |
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
DeepSeek V3.1 Nex N1
131,072
tokens
Max output: 163,840 tokens
GPT-5.2 Pro
400,000
tokens
Max output: 128,000 tokens
GPT-5.2 Pro has a 67% larger context window.
Speed Performance
| Metric | DeepSeek V3.1 Nex N1 | GPT-5.2 Pro | Winner |
|---|---|---|---|
| Tokens/second | N/A | 98.3 tok/s | |
| Time to First Token | N/A | 46.57s |
Capabilities
Feature Comparison
| Feature | DeepSeek V3.1 Nex N1 | 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 | DeepSeek V3.1 Nex N1 | GPT-5.2 Pro |
|---|---|---|
| License | Open Source | Proprietary |
| Author | Nex-AGI | OpenAI |
| Released | Dec 2025 | Dec 2025 |
DeepSeek V3.1 Nex N1 Modalities
Input
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Output
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GPT-5.2 Pro Modalities
Input
imagetextfile
Output
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