# GPT-5.4 Pro vs Qwen3.8-27B

> Side-by-side benchmark comparison for GPT-5.4 Pro and Qwen3.8-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-4-pro-vs-qwen3-8-27b
- Last updated: September 18, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-5.4 Pro and Qwen3.8-27B share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Qwen3.8-27B has the lower published output-token price.
- GPT-5.4 Pro has the larger published context window at 1.05M.

## Model Snapshot

| Property | GPT-5.4 Pro | Qwen3.8-27B |
|----------|----------|----------|
| Creator | OpenAI | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 262K |
| Independent public score (not head-to-head) | 60.49 | 64.29 |
| Benchmarks Covered | 10 | 33 |
| Pricing (input/output) | $30.00 / $180.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: 56.4 (Estimated · #35/154)
- Qwen3.8-27B public-lane score: 63.6 (Supported · #12/154)

| Benchmark | GPT-5.4 Pro | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | 89.3% | Coming soon | Coming soon |
| 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
- GPT-5.4 Pro public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 53.8 (Supported · #42/154)

| Benchmark | GPT-5.4 Pro | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| 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 |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 79.8 (#11/48)

| Benchmark | GPT-5.4 Pro | 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 |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: 70.2 (Unranked · 2 rankable rows)
- Qwen3.8-27B public-lane score: 77.4 (#7/20)

| Benchmark | GPT-5.4 Pro | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 83.3% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: 59 (Estimated · #39/184)
- Qwen3.8-27B public-lane score: 54.1 (Supported · #59/184)

| Benchmark | GPT-5.4 Pro | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| HLE | 58.7% | 30.8% | GPT-5.4 Pro |
| FrontierScience | 36.7% | Coming soon | Coming soon |
| FrontierScience Research | 36.7% | Coming soon | Coming soon |
| HLE w/o tools | 42.7% | 30.8% | GPT-5.4 Pro |
| GPQA | Coming soon | 89.2% | Coming soon |
| GPQA-D | Coming soon | 89.2% | 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
- GPT-5.4 Pro public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 83.2 (#45/124)

| Benchmark | GPT-5.4 Pro | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.5% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.4 Pro public-lane score: 68.8 (Unranked · 4 rankable rows)
- Qwen3.8-27B public-lane score: Coming soon

| Benchmark | GPT-5.4 Pro | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| IPhO 2025 (Theory) | 93.5% | Coming soon | Coming soon |
| FrontierMath (legacy) | 50% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 50.000% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 37.500% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-5.4 Pro and Qwen3.8-27B?

Not yet. The models share only 2 sourced benchmark rows, 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

- [GPT-5.4 Pro vs GPT-5.4](/compare/gpt-5-4-vs-gpt-5-4-pro)
- [Qwen3.8-27B vs GPT-5.4](/compare/gpt-5-4-vs-qwen3-8-27b)
- [GPT-5.4 Pro vs GPT-5.4 mini](/compare/gpt-5-4-mini-vs-gpt-5-4-pro)
- [Qwen3.8-27B vs GPT-5.4 mini](/compare/gpt-5-4-mini-vs-qwen3-8-27b)

## Explore More

- [GPT-5.4 Pro profile](/models/gpt-5-4-pro)
- [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)