# Qwen3.8-Flash-Next vs Step 3.5 Flash

> Side-by-side benchmark comparison for Qwen3.8-Flash-Next and Step 3.5 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/qwen3-8-flash-next-vs-step-3-5-flash
- Last updated: October 10, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Qwen3.8-Flash-Next and Step 3.5 Flash 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-Flash-Next has the lower published output-token price.
- Qwen3.8-Flash-Next has the larger published context window at 262K.

## Model Snapshot

| Property | Qwen3.8-Flash-Next | Step 3.5 Flash |
|----------|----------|----------|
| Creator | Alibaba | StepFun |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 262K | 256K |
| Independent public score (not head-to-head) | 64.23 | 42.41 |
| Benchmarks Covered | 24 | 3 |
| Pricing (input/output) | $0.00 / $0.00 | $0.10 / $0.30 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Qwen3.8-Flash-Next public-lane score: 59.5 (Estimated · #24/123)
- Step 3.5 Flash public-lane score: Coming soon

| Benchmark | Qwen3.8-Flash-Next | Step 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| CoWorkBench | 73.9% | Coming soon | Coming soon |
| JobBench | 55.7% | Coming soon | Coming soon |
| Agents' Last Exam | 51.2% | Coming soon | Coming soon |
| Toolathlon-Verified | 73.5% | Coming soon | Coming soon |
| AndroidWorld | 84.5% | Coming soon | Coming soon |
| OSWorld 2.0 | 19.4% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Qwen3.8-Flash-Next public-lane score: 52.4 (Supported · #37/146)
- Step 3.5 Flash public-lane score: Coming soon

| Benchmark | Qwen3.8-Flash-Next | Step 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 62.5% | Coming soon | Coming soon |
| SWE Multilingual | 81% | Coming soon | Coming soon |
| NL2Repo | 48.1% | Coming soon | Coming soon |
| DeepSWE | 58.7% | Coming soon | Coming soon |
| LiveCodeBench v6 | 91.9% | 86.4% | Qwen3.8-Flash-Next |
| SWE-bench Verified | Coming soon | 74.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Qwen3.8-Flash-Next public-lane score: 80.9 (Unranked · 2 rankable rows)
- Step 3.5 Flash public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Qwen3.8-Flash-Next public-lane score: 87.7 (#8/54)
- Step 3.5 Flash public-lane score: Coming soon

| Benchmark | Qwen3.8-Flash-Next | Step 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| Vision2Web | 64.0% | Coming soon | Coming soon |
| ERQA | 72.3% | Coming soon | Coming soon |
| LVBench | 76.6% | Coming soon | Coming soon |
| RealWorldQA | 88.5% | Coming soon | Coming soon |
| MathVision | 90.6% | Coming soon | Coming soon |
| MathVision w/ Python | 95.7% | Coming soon | Coming soon |
| CharXiv w/o tools | 84.6% | Coming soon | Coming soon |
| CharXiv | 90.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Qwen3.8-Flash-Next public-lane score: 59.4 (Supported · #47/177)
- Step 3.5 Flash public-lane score: Coming soon

| Benchmark | Qwen3.8-Flash-Next | Step 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.7% | Coming soon | Coming soon |
| GPQA-D | 91.7% | Coming soon | Coming soon |
| HLE | 35.9% | Coming soon | Coming soon |
| HLE w/o tools | 35.9% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Qwen3.8-Flash-Next public-lane score: 91.2 (#22/127)
- Step 3.5 Flash public-lane score: Coming soon

| Benchmark | Qwen3.8-Flash-Next | Step 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 81.3% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Qwen3.8-Flash-Next public-lane score: Coming soon
- Step 3.5 Flash public-lane score: Coming soon

| Benchmark | Qwen3.8-Flash-Next | Step 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | Coming soon | 97.3% | Coming soon |

## FAQ

### Is there enough evidence to pick between Qwen3.8-Flash-Next and Step 3.5 Flash?

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

- [Qwen3.8-Flash-Next vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-8-flash-next)
- [Step 3.5 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-step-3-5-flash)
- [Qwen3.8-Flash-Next vs GPT-6 Astra](/compare/gpt-6-astra-vs-qwen3-8-flash-next)
- [Step 3.5 Flash vs GPT-6 Astra](/compare/gpt-6-astra-vs-step-3-5-flash)

## Explore More

- [Qwen3.8-Flash-Next profile](/models/qwen3-8-flash-next)
- [Step 3.5 Flash profile](/models/step-3-5-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)