Qwen1.5 32B Chat (Qwen) and Qwen3.5 4B (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 23 September 2026
As of 23 September 2026, Qwen3.5 4B holds the stronger ModelCap Index position (#126 vs #232); and Qwen3.5 4B ships open weights.
Evidence: 2 public benchmark observations across 2 boards · publisher-corpus-prior over 215 held-out anchors (22%); launch card against 3 resolved peers on 10 rows (78%); exceeds every named peer on 2 of 10 rows; optimism haircut 0.6 from cross-lab-probe; shrunk 3.1 up toward the measured corpus. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.
Benchmark scores: Qwen1.5 32B Chat vs Qwen3.5 4B
Public benchmark boards where Qwen1.5 32B Chat or Qwen3.5 4B has a published result
Qwen3.5 4B ranks higher on the ModelCap Index as of 23 September 2026: #126 against #232. 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 do not overlap, but the aggregate Index does not predict performance on every task; compare the relevant benchmark configurations before choosing.
Is Qwen1.5 32B Chat cheaper than Qwen3.5 4B?
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, Qwen1.5 32B Chat or Qwen3.5 4B?
Both publish a —-token context window.
Which is better for coding, Qwen1.5 32B Chat or Qwen3.5 4B?
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 Qwen1.5 32B Chat and Qwen3.5 4B open-weight models?
Qwen1.5 32B Chat: Restricted license. Qwen3.5 4B: 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 Qwen1.5 32B Chat and Qwen3.5 4B?
ModelCap currently lists 0 API providers for Qwen1.5 32B Chat and 0 for Qwen3.5 4B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.
How current is this Qwen1.5 32B Chat vs Qwen3.5 4B comparison?
Every figure comes from the sealed ModelCap dataset published 23 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.