# DeepSeek V3.1 (Reasoning) vs Phi-4-reasoning-plus

> Side-by-side benchmark comparison for DeepSeek V3.1 (Reasoning) and Phi-4-reasoning-plus across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v3-1-reasoning-vs-phi-4-reasoning-plus
- Last updated: October 14, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Phi-4-reasoning-plus leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Phi-4-reasoning-plus has the higher overall point estimate 50 to 39.06. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is LiveCodeBench in Coding, with scores of 74.8% and 53.1%.
- DeepSeek V3.1 (Reasoning) also has the larger context window at 128K.

## Model Snapshot

| Property | DeepSeek V3.1 (Reasoning) | Phi-4-reasoning-plus |
|----------|----------|----------|
| Creator | DeepSeek | Microsoft |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 32K |
| Overall Score | 39.06 | null |
| Benchmarks Covered | 6 | 6 |
| Pricing (input/output) | $0.00 / $0.00 | N/A |

## Category Breakdown

### Coding

- Winner: Not comparable
- DeepSeek V3.1 (Reasoning) public-lane score: Coming soon
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 (Reasoning) | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench | 74.8% | 53.1% | DeepSeek V3.1 (Reasoning) |

### Reasoning

- Winner: Not comparable
- DeepSeek V3.1 (Reasoning) public-lane score: 64.8 (Unranked · 2 rankable rows)
- Phi-4-reasoning-plus public-lane score: Coming soon

### Knowledge

- Winner: Not comparable
- DeepSeek V3.1 (Reasoning) public-lane score: 40.6 (Supported · #114/181)
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 (Reasoning) | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 80.1% | 68.9% | DeepSeek V3.1 (Reasoning) |
| MMLU-Pro | 84.8% | 76% | DeepSeek V3.1 (Reasoning) |
| HLE | 15.9% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- DeepSeek V3.1 (Reasoning) public-lane score: 48.4 (#85/128)
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 (Reasoning) | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 84.9% | Coming soon |

### Mathematics

- Winner: Not comparable
- DeepSeek V3.1 (Reasoning) public-lane score: Coming soon
- Phi-4-reasoning-plus public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 (Reasoning) | Phi-4-reasoning-plus | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 93.1% | 81.3% | DeepSeek V3.1 (Reasoning) |
| AIME 2025 | 88.4% | 78% | DeepSeek V3.1 (Reasoning) |

## FAQ

### Which is better overall, DeepSeek V3.1 (Reasoning) or Phi-4-reasoning-plus?

Phi-4-reasoning-plus has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### How many benchmarks does DeepSeek V3.1 (Reasoning) cover on BenchLM?

DeepSeek V3.1 (Reasoning) currently has 6 sourced benchmark scores on BenchLM.

### How many benchmarks does Phi-4-reasoning-plus cover on BenchLM?

Phi-4-reasoning-plus currently has 6 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V3.1 (Reasoning) vs DeepSeek V3.1](/compare/deepseek-v3-1-vs-deepseek-v3-1-reasoning)
- [Phi-4-reasoning-plus vs DeepSeek V3.1](/compare/deepseek-v3-1-vs-phi-4-reasoning-plus)
- [DeepSeek V3.1 (Reasoning) vs Phi-4-reasoning](/compare/deepseek-v3-1-reasoning-vs-phi-4-reasoning)
- [Phi-4-reasoning-plus vs Phi-4-reasoning](/compare/phi-4-reasoning-vs-phi-4-reasoning-plus)

## Explore More

- [DeepSeek V3.1 (Reasoning) profile](/models/deepseek-v3-1-reasoning)
- [Phi-4-reasoning-plus profile](/models/phi-4-reasoning-plus)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)