Head-to-head
Qwen-UI-Agent vs Step 5 Preview
A 13.5-point composite gap — but the real story is the dimension mix. Same weights, unpacked: who leads where, and whether the premium is justified.
The short answer
The composites differ by 13.5 points, and their strengths do not overlap.
Stronger overall: Step 5 Preview. If you only run one workload, read the dimension table instead.
Overlaid radar
Same weights, same scale; overlap means parity
- Qwen-UI-Agent79.5
- Step 5 Preview93.0
Dimension deltas
A on the left, B on the right; 100 max per row
Qwen-UI-Agent leads 1, Step 5 Preview leads 7.
Spec sheet
Hard specs in one table
| Item | Qwen-UI-Agent | Step 5 Preview |
|---|---|---|
| Composite | 79.5 | 93.0 |
| Tier | B+ | S |
| Visual perception & grounding | 90 | 96WIN |
| Document parsing & Chinese OCR | 80 | 95WIN |
| Chart & document reasoning | 70 | 93WIN |
| Video & long-horizon reasoning | 60 | 91WIN |
| GUI agents & tool use | 98WIN | 94 |
| Generation & editing | 50 | 78WIN |
| Chinese context & culture | 88 | 93WIN |
| Ecosystem, cost & availability | 86 | 94WIN |
| Output price | ¥0 / M | ¥4 / M |
| Context | 128K | 1M |
| Parameters | 27B main / 35B-A3B / 4B tiers | 600B total / 27B active (MoE) |
| Licence | Open weights (Apache-2.0) | Open weights (StepFun community licence) |
| Native multimodal | Yes | Yes |
| Evidence grade | B | B |
How to choose
Choose Qwen-UI-Agent if…
- Mobile app automation testing
- GUI agents and RPA
- Accessibility and assisted control
- You cannot accept its limitation: Generation 50 and video 60: it operates, it does not understand content.
How to choose
Choose Step 5 Preview if…
- A flagship-class stand-in for edge-cloud products
- Production video understanding
- Self-hosted tier-S multimodal work
- You cannot accept its limitation: Generation and editing at 78 — effectively no usable text-to-image or Chinese glyph rendering.
Scenario check
Five scenarios, who holds up
| Scenario | Qwen-UI-Agent | Step 5 Preview | Better |
|---|---|---|---|
| Mobile GUI control | 98 | 95 | Qwen-UI-Agent |
| Chinese screenshot OCR | 80 | 93 | Step 5 Preview |
| Chart data extraction | 70 | 91 | Step 5 Preview |
| 30-min video QA | 60 | 94 | Step 5 Preview |
| Chinese cultural context | 88 | 93 | Step 5 Preview |
Comparison FAQ
Qwen-UI-Agent vs Step 5 Preview: which is stronger?
Composite: Qwen-UI-Agent 79.5, Step 5 Preview 93.0. Qwen-UI-Agent leads on GUI agents & tool use; Step 5 Preview leads on Visual perception & grounding, Document parsing & Chinese OCR, Chart & document reasoning, Video & long-horizon reasoning, Generation & editing, Chinese context & culture, Ecosystem, cost & availability. The stronger overall is Step 5 Preview.
How much more expensive is Qwen-UI-Agent than Step 5 Preview?
Qwen-UI-Agent is ¥0/1M output tokens; Step 5 Preview is ¥4/1M. On output price, Step 5 Preview is pricier; real cost also depends on image tokens and input share.
Can Step 5 Preview replace Qwen-UI-Agent?
It depends on your primary workload. If it sits in Step 5 Preview’s strengths (A flagship-class stand-in for edge-cloud products, Production video understanding, Self-hosted tier-S multimodal work), yes. If you need Mobile app automation testing, switching will cost quality.
Personal ranking · Not an official score
Every ranking, score and comparison on this page is an independent personal ranking, not an official score, and represents no vendor, institution or regulator. Scores are a subjective mapping of public evidence under our own weights — change the weights and the order changes. Disagree, or spotted a factual error? Contact the site owner: jizhi2024@foxmail.com — we check each report and log corrections in the changelog.