Key Takeaways
DeepSeek V3.1 Terminus wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Has reasoning mode
Phi-3 Mini 128K Instruct wins:
- Cheaper input tokens
- Cheaper output tokens
Price Advantage
Phi-3 Mini 128K Instruct
Benchmark Advantage
DeepSeek V3.1 Terminus
Context Window
DeepSeek V3.1 Terminus
Speed
DeepSeek V3.1 Terminus
Pricing Comparison
Price Comparison
| Metric | DeepSeek V3.1 Terminus | Phi-3 Mini 128K Instruct | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.21 | $0.10 | Phi-3 Mini 128K Instruct |
| Output (per 1M tokens) | $0.79 | $0.10 | Phi-3 Mini 128K Instruct |
| Cache Read (per 1M) | $0.12 | N/A | DeepSeek V3.1 Terminus |
Using a 3:1 input/output ratio, Phi-3 Mini 128K Instruct is 72% cheaper overall.
DeepSeek V3.1 Terminus Providers
No provider data available
Phi-3 Mini 128K Instruct Providers
No provider data available
Benchmark Comparison
7
Benchmarks Compared
3
DeepSeek V3.1 Terminus Wins
0
Phi-3 Mini 128K Instruct Wins
Benchmark Scores
| Benchmark | DeepSeek V3.1 Terminus | Phi-3 Mini 128K Instruct | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 28.5 | 26.3 | |
Coding Index Code generation & understanding | 31.9 | - | - |
Math Index Mathematical reasoning | 53.7 | - | - |
MMLU Pro Academic knowledge | 83.6 | 30.4 | |
GPQA Graduate-level science | 75.1 | 9.1 | |
LiveCodeBench Competitive programming | 52.9 | - | - |
BBH Big-Bench Hard | - | 37.1 | - |
DeepSeek V3.1 Terminus significantly outperforms in coding benchmarks.
Cost vs Quality
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DeepSeek V3.1 Terminus
Other models
Context & Performance
Context Window
DeepSeek V3.1 Terminus
163,840
tokens
Phi-3 Mini 128K Instruct
128,000
tokens
DeepSeek V3.1 Terminus has a 22% larger context window.
Speed Performance
| Metric | DeepSeek V3.1 Terminus | Phi-3 Mini 128K Instruct | Winner |
|---|---|---|---|
| Tokens/second | 0.0 tok/s | N/A | |
| Time to First Token | 0.00s | N/A |
Capabilities
Feature Comparison
| Feature | DeepSeek V3.1 Terminus | Phi-3 Mini 128K Instruct |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | DeepSeek V3.1 Terminus | Phi-3 Mini 128K Instruct |
|---|---|---|
| License | Open Source | Open Source |
| Author | Deepseek | Microsoft |
| Released | Sep 2025 | Unknown |
DeepSeek V3.1 Terminus Modalities
Input
text
Output
text
Phi-3 Mini 128K Instruct Modalities
Input
Output