# Phi-4-reasoning-plus vs Qwen3.8-27B

> Side-by-side benchmark comparison for Phi-4-reasoning-plus and Qwen3.8-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/phi-4-reasoning-plus-vs-qwen3-8-27b
- Last updated: October 14, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Phi-4-reasoning-plus and Qwen3.8-27B share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Qwen3.8-27B has the larger published context window at 262K.

## Model Snapshot

| Property | Phi-4-reasoning-plus | Qwen3.8-27B |
|----------|----------|----------|
| Creator | Microsoft | Alibaba |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 32K | 262K |
| Independent public score (not head-to-head) | null | 57.7 |
| Benchmarks Covered | 6 | 34 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Phi-4-reasoning-plus public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 63.3 (Supported · #21/124)

| Benchmark | Phi-4-reasoning-plus | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | Coming soon | 73.0% | Coming soon |
| CoWorkBench | Coming soon | 70.7% | Coming soon |
| JobBench | Coming soon | 33.4% | Coming soon |
| Agents' Last Exam | Coming soon | 42.9% | Coming soon |
| OSWorld-Verified | Coming soon | 84.3% | Coming soon |
| WebArena-Verified | Coming soon | 64.8% | Coming soon |
| AndroidWorld | Coming soon | 81.9% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 58.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Phi-4-reasoning-plus public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 46.7 (Supported · #49/148)

| Benchmark | Phi-4-reasoning-plus | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench | 53.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 73.0% | Coming soon |
| SWE-bench Pro | Coming soon | 61.7% | Coming soon |
| NL2Repo | Coming soon | 42.3% | Coming soon |
| DeepSWE | Coming soon | 42.2% | Coming soon |
| LiveCodeBench v6 | Coming soon | 90.3% | Coming soon |
| VulcanBench v3 | Coming soon | 82.6% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 84.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 86.0% | Coming soon |
| Bug Hunt Bench | Coming soon | 15.0 fixes | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Phi-4-reasoning-plus public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 82.2 (#9/29)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Phi-4-reasoning-plus public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 84.4 (#13/54)

| Benchmark | Phi-4-reasoning-plus | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| MathVision | Coming soon | 90.0% | Coming soon |
| MathVision w/ Python | Coming soon | 94.6% | Coming soon |
| BabyVision | Coming soon | 65.7% | Coming soon |
| BabyVision w/ Python | Coming soon | 85.6% | Coming soon |
| Vision2Web | Coming soon | 62.9% | Coming soon |
| CharXiv w/o tools | Coming soon | 83.7% | Coming soon |
| CharXiv | Coming soon | 90.2% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 91.1% | Coming soon |
| RealWorldQA | Coming soon | 85.9% | Coming soon |
| ERQA | Coming soon | 65.5% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Phi-4-reasoning-plus public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 50.8 (Supported · #76/181)

| Benchmark | Phi-4-reasoning-plus | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 68.9% | 89.2% | Qwen3.8-27B |
| MMLU-Pro | 76% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 89.2% | Coming soon |
| HLE | Coming soon | 30.8% | Coming soon |
| HLE w/o tools | Coming soon | 30.8% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 88.9% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 84.3% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Phi-4-reasoning-plus public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 86.9 (#40/128)

| Benchmark | Phi-4-reasoning-plus | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 84.9% | Coming soon | Coming soon |
| IFBench | Coming soon | 79.5% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Phi-4-reasoning-plus public-lane score: Coming soon
- Qwen3.8-27B public-lane score: Coming soon

| Benchmark | Phi-4-reasoning-plus | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 81.3% | Coming soon | Coming soon |
| AIME 2025 | 78% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Phi-4-reasoning-plus and Qwen3.8-27B?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Phi-4-reasoning-plus vs Phi-4-reasoning](/compare/phi-4-reasoning-vs-phi-4-reasoning-plus)
- [Qwen3.8-27B vs Phi-4-reasoning](/compare/phi-4-reasoning-vs-qwen3-8-27b)
- [Phi-4-reasoning-plus vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-phi-4-reasoning-plus)
- [Qwen3.8-27B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-8-27b)

## Explore More

- [Phi-4-reasoning-plus profile](/models/phi-4-reasoning-plus)
- [Qwen3.8-27B profile](/models/qwen3-8-27b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)