# Mercury 3 vs Qwen3.8-27B

> Side-by-side benchmark comparison for Mercury 3 and Qwen3.8-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mercury-3-vs-qwen3-8-27b
- Last updated: October 19, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Mercury 3 and Qwen3.8-27B share only 3 sourced benchmark rows.

## Summary

- Only 3 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.
- Mercury 3 has the larger published context window at 1M.

## Model Snapshot

| Property | Mercury 3 | Qwen3.8-27B |
|----------|----------|----------|
| Creator | Inception | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 262K |
| Independent public score (not head-to-head) | null | 59.62 |
| Benchmarks Covered | 8 | 34 |
| Pricing (input/output) | $0.10 / $0.35 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 63.3 (Supported · #21/130)

| Benchmark | Mercury 3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 30.2% | Coming soon | Coming soon |
| BrowseComp+ | 55.18% | Coming soon | Coming soon |
| DeepSearchQA | 71.3% | 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
- Mercury 3 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 46.5 (Supported · #52/151)

| Benchmark | Mercury 3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 46.3% | 42.2% | Mercury 3 |
| 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 |
| 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
- Mercury 3 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 81.3 (#7/27)

| Benchmark | Mercury 3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 75.5% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 84.4 (#13/55)

| Benchmark | Mercury 3 | 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
- Mercury 3 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 51.1 (Supported · #79/186)

| Benchmark | Mercury 3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 89.2% | 89.2% | Mercury 3 |
| GPQA | 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
- Mercury 3 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 86.9 (#41/148)

| Benchmark | Mercury 3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 76.8% | 79.5% | Qwen3.8-27B |
| MultiChallenge (provider reports) | 60.35% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Mercury 3 and Qwen3.8-27B?

Not yet. The models share only 3 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

- [Mercury 3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mercury-3)
- [Qwen3.8-27B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-8-27b)
- [Mercury 3 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-mercury-3)
- [Qwen3.8-27B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-qwen3-8-27b)

## Explore More

- [Mercury 3 profile](/models/mercury-3)
- [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)