# DeepSeek V3.1 vs Phi-4-reasoning

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

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

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

## Quick Verdict

Pick Phi-4-reasoning if you want the stronger benchmark profile. DeepSeek V3.1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Phi-4-reasoning leads overall 49 to 40.79.
- The biggest single benchmark swing is AIME 2025 in Mathematics, with scores of 49.8% and 62.9%.
- DeepSeek V3.1 also has the larger context window at 128K.

## Model Snapshot

| Property | DeepSeek V3.1 | Phi-4-reasoning |
|----------|----------|----------|
| Creator | DeepSeek | Microsoft |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 32K |
| Overall Score | 40.79 | null |
| Benchmarks Covered | 6 | 6 |
| Pricing (input/output) | $0.00 / $0.00 | N/A |

## Category Breakdown

### Coding

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

| Benchmark | DeepSeek V3.1 | Phi-4-reasoning | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 66% | Coming soon | Coming soon |
| LiveCodeBench | 56.4% | 53.8% | DeepSeek V3.1 |

### Reasoning

- Winner: Not comparable
- DeepSeek V3.1 public-lane score: 58.1 (Unranked · 2 rankable rows)
- Phi-4-reasoning public-lane score: Coming soon

### Knowledge

- Winner: Not comparable
- DeepSeek V3.1 public-lane score: 38.6 (Supported · #119/181)
- Phi-4-reasoning public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 | Phi-4-reasoning | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 74.9% | 65.8% | DeepSeek V3.1 |
| MMLU-Pro | 83.7% | 74.3% | DeepSeek V3.1 |

### Instruction Following

- Winner: Not comparable
- DeepSeek V3.1 public-lane score: 43.5 (#99/128)
- Phi-4-reasoning public-lane score: Coming soon

| Benchmark | DeepSeek V3.1 | Phi-4-reasoning | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 83.4% | Coming soon |

### Mathematics

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

| Benchmark | DeepSeek V3.1 | Phi-4-reasoning | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 66.3% | 75.3% | Phi-4-reasoning |
| AIME 2025 | 49.8% | 62.9% | Phi-4-reasoning |

## FAQ

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

Phi-4-reasoning is ahead overall on BenchLM right now.

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

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

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

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

## Related Comparisons

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

## Explore More

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