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Head-to-head comparison

Qwen3.5 4B vs QwQ 32B

Qwen3.5 4B (Qwen) and QwQ 32B (Qwen) 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 15 September 2026

As of 15 September 2026, Qwen3.5 4B holds the stronger ModelCap Index position (#121 vs #151).

Which should you choose?

Choose Qwen3.5 4B if…

  • you want the stronger overall ModelCap Index position — #121 against #151 (39.5 vs 31.5 points).
  • AA Humanity's Last Exam is your yardstick — 9.9% against 7.4%.
  • you want the more recently listed model — Qwen3.5 4B was listed 27 February 2026, QwQ 32B 5 March 2025.

Choose QwQ 32B if…

  • ModelCap publishes no field on which QwQ 32B leads Qwen3.5 4B for this pair.

Qwen3.5 4B vs QwQ 32B: specs, pricing and context

Specification comparison of Qwen3.5 4B and QwQ 32B
FieldQwen3.5 4BQwenQwQ 32BQwen
ModelCap Index position#121#151
Index score39.531.5
EvidenceEstimatedMeasured
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
First listed27 February 20265 March 2025
PublisherQwenQwen

Evidence: publisher-corpus-prior over 193 held-out anchors (30%); launch card against 3 resolved peers on 10 rows (70%); exceeds every named peer on 2 of 10 rows; optimism haircut 0.6 from cross-lab-probe; shrunk 4.6 up toward the measured corpus · 1 public benchmark observation across 1 board. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Qwen3.5 4B vs QwQ 32B

Public benchmark boards where Qwen3.5 4B or QwQ 32B has a published result
BoardQwen3.5 4BQwQ 32BLeads
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=true7.4%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="QwQ 32B":reasoning=trueQwen3.5 4B

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 QwQ 32B: common questions

Is Qwen3.5 4B better than QwQ 32B?

Qwen3.5 4B ranks higher on the ModelCap Index as of 15 September 2026: #121 against #151. 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 QwQ 32B?

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 QwQ 32B?

Both publish a —-token context window.

Which is better for coding, Qwen3.5 4B or QwQ 32B?

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 QwQ 32B open-weight models?

Qwen3.5 4B: Open weights. QwQ 32B: 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 QwQ 32B?

ModelCap currently lists 0 API providers for Qwen3.5 4B and 0 for QwQ 32B, 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 QwQ 32B comparison?

Every figure comes from the sealed ModelCap dataset published 15 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.

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