Skip to content
ModelCap

Head-to-head comparison

Qwen3.5 4B vs UI Mate 9B

Qwen3.5 4B (Qwen) and UI Mate 9B (Tencent) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 13 September 2026

As of 13 September 2026, UI Mate 9B holds the stronger ModelCap Index position (#113 vs #116).

Which should you choose?

Choose Qwen3.5 4B if…

  • ModelCap publishes no field on which Qwen3.5 4B leads UI Mate 9B for this pair.

Choose UI Mate 9B if…

  • you want the stronger overall ModelCap Index position — #113 against #116 (40.1 vs 38.7 points).
  • you want the more recently listed model — UI Mate 9B was listed 14 August 2026, Qwen3.5 4B 27 February 2026.

Qwen3.5 4B vs UI Mate 9B: specs, pricing and context

Specification comparison of Qwen3.5 4B and UI Mate 9B
FieldQwen3.5 4BQwenUI Mate 9BTencent
ModelCap Index position#116#113
Index score38.740.1
EvidenceEstimatedInherited
Input price / 1M tokensUnlistedUnlisted
Output price / 1M tokensUnlistedUnlisted
Context window— tokens— tokens
Max output tokens——
API providers listed00
Weight accessOpen weightsOpen weights
Input modalitiesText, ImageText, Image
First listed27 February 202614 August 2026
PublisherQwenTencent

Evidence: publisher-corpus-prior over 186 held-out anchors (26%); launch card against 3 resolved peers on 10 rows (74%); exceeds every named peer on 2 of 10 rows; optimism haircut 0.6 from cross-lab-probe; shrunk 4 up toward the measured corpus · finetune of qwen/qwen3.5-9b · finetune (100%). Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Qwen3.5 4B vs UI Mate 9B

Public benchmark boards where Qwen3.5 4B or UI Mate 9B has a published result
BoardQwen3.5 4BUI Mate 9BLeads
AA Terminal-Bench 2.1Artificial Analysis25.8%terminal-bench:2.1:terminus-2:e2b:pass-at-1:3-repeats:source-model="Qwen3.5 4B (Reasoning)":reasoning=true—Only one result
AA τ²-Bench TelecomArtificial Analysis92.1%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Qwen3.5 4B (Reasoning)":reasoning=true—Only one result
AA Humanity's Last ExamArtificial Analysis9.9%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Qwen3.5 4B (Reasoning)":reasoning=true—Only one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Qwen3.5 4B vs UI Mate 9B: common questions

Is Qwen3.5 4B better than UI Mate 9B?

UI Mate 9B ranks higher on the ModelCap Index as of 13 September 2026: #113 against #116. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.

Is Qwen3.5 4B cheaper than UI Mate 9B?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, Qwen3.5 4B or UI Mate 9B?

Both publish a —-token context window.

Which is better for coding, Qwen3.5 4B or UI Mate 9B?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Qwen3.5 4B and UI Mate 9B open-weight models?

Qwen3.5 4B: Open weights. UI Mate 9B: Open weights. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Qwen3.5 4B and UI Mate 9B?

ModelCap currently lists 0 API providers for Qwen3.5 4B and 0 for UI Mate 9B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Qwen3.5 4B vs UI Mate 9B comparison?

Every figure comes from the sealed ModelCap dataset published 13 September 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

Explore further