Head-to-head comparison

Nemotron Cascade 2 30B A3B vs Qwen3.5 4B

Nemotron Cascade 2 30B A3B (NVIDIA) 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 9 September 2026

As of 9 September 2026, Nemotron Cascade 2 30B A3B holds the stronger ModelCap Index position (#108 vs #109); and Qwen3.5 4B ships open weights.

Which should you choose?

Choose Nemotron Cascade 2 30B A3B if…

you want the stronger overall ModelCap Index position — #108 against #109 (38.4 vs 38.4 points).
AA Humanity's Last Exam is your yardstick — 12.0% against 9.9%.
you want the more recently listed model — Nemotron Cascade 2 30B A3B was listed 18 March 2026, Qwen3.5 4B 27 February 2026.

Choose Qwen3.5 4B if…

you want to self-host: Qwen3.5 4B ships open weights while Nemotron Cascade 2 30B A3B is restricted license.
AA Terminal-Bench 2.1 is your yardstick — 25.8% against 20.6%.
AA τ²-Bench Telecom is your yardstick — 92.1% against 53.2%.

Nemotron Cascade 2 30B A3B vs Qwen3.5 4B: specs, pricing and context

Specification comparison of Nemotron Cascade 2 30B A3B and Qwen3.5 4B
Field	Nemotron Cascade 2 30B A3BNVIDIA	Qwen3.5 4BQwen
ModelCap Index position	#108	#109
Index score	38.4	38.4
Evidence	Estimated	Estimated
Input price / 1M tokens	Unlisted	Unlisted
Output price / 1M tokens	Unlisted	Unlisted
Context window	— tokens	— tokens
Max output tokens	—	—
API providers listed	0	0
Weight access	Restricted license	Open weights
Input modalities	Text	Text, Image
First listed	18 March 2026	27 February 2026
Publisher	NVIDIA	Qwen

Evidence: publisher-corpus-prior over 182 held-out anchors (57%); launch card against 3 resolved peers on 11 rows (43%); exceeds every named peer on 3 of 11 rows; optimism haircut 0 from cross-lab-probe; shrunk 4.9 up toward the measured corpus · publisher-corpus-prior over 182 held-out anchors (27%); launch card against 3 resolved peers on 10 rows (73%); exceeds every named peer on 2 of 10 rows; optimism haircut 0.6 from cross-lab-probe; shrunk 4.1 up toward the measured corpus. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Nemotron Cascade 2 30B A3B vs Qwen3.5 4B

Public benchmark boards where Nemotron Cascade 2 30B A3B or Qwen3.5 4B has a published result
Board	Nemotron Cascade 2 30B A3B	Qwen3.5 4B	Leads
AA Terminal-Bench 2.1Artificial Analysis	20.6%terminal-bench:2.1:terminus-2:e2b:pass-at-1:3-repeats:source-model="Nemotron Cascade 2 30B A3B":reasoning=true	25.8%terminal-bench:2.1:terminus-2:e2b:pass-at-1:3-repeats:source-model="Qwen3.5 4B":reasoning=true	Qwen3.5 4B
AA τ²-Bench TelecomArtificial Analysis	53.2%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Nemotron Cascade 2 30B A3B":reasoning=true	92.1%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Qwen3.5 4B":reasoning=true	Qwen3.5 4B
AA Humanity's Last ExamArtificial Analysis	12.0%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Nemotron Cascade 2 30B A3B":reasoning=true	9.9%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Qwen3.5 4B":reasoning=true	Nemotron Cascade 2 30B A3B

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.

Nemotron Cascade 2 30B A3B vs Qwen3.5 4B: common questions

Is Nemotron Cascade 2 30B A3B better than Qwen3.5 4B?

Nemotron Cascade 2 30B A3B ranks higher on the ModelCap Index as of 9 September 2026: #108 against #109. 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 Nemotron Cascade 2 30B A3B 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, Nemotron Cascade 2 30B A3B or Qwen3.5 4B?

Both publish a —-token context window.

Which is better for coding, Nemotron Cascade 2 30B A3B or Qwen3.5 4B?

AA Terminal-Bench 2.1: Nemotron Cascade 2 30B A3B 20.6%, Qwen3.5 4B 25.8% — Qwen3.5 4B leads.

Are Nemotron Cascade 2 30B A3B and Qwen3.5 4B open-weight models?

Nemotron Cascade 2 30B A3B: 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 Nemotron Cascade 2 30B A3B and Qwen3.5 4B?

ModelCap currently lists 0 API providers for Nemotron Cascade 2 30B A3B 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 Nemotron Cascade 2 30B A3B vs Qwen3.5 4B comparison?

Every figure comes from the sealed ModelCap dataset published 9 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.