ZMIME
Comparison · 2 models · Updated Oct 4, 2026

Qwen3.5 35B-A3B vs Nemotron 3 Ultra 550B A55B

Qwen3.5 35B-A3B comes out ahead, 66 to 62 on our weighted score, and it is the cheaper option too.

  1. Our pick

    Alibaba (Qwen)

    Qwen3.5 35B-A3B

    Released Feb 23, 2026

    66/100
    • ECI142.5
    • Price$0.25 / $2.00
    • Context262K
    Full specs Remove Qwen3.5 35B-A3B

  2. NVIDIA

    Nemotron 3 Ultra 550B A55B

    Released Jun 4, 2026

    62/100
    • ECI146.2
    • Price$0.50 / $2.50
    • Context1M
    Full specs Remove Nemotron 3 Ultra 550B A55B

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Qwen3.5 35B-A3B is our pick

Qwen3.5 35B-A3B is the better all-round choice, scoring 66/100 against Nemotron 3 Ultra 550B A55B (62). It leads on price and inputs & features. Nemotron 3 Ultra 550B A55B wins on capability and context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityNemotron 3 Ultra 550B A55BCapabilities Index (ECI): Nemotron 3 Ultra 550B A55B 146.2 · Qwen3.5 35B-A3B 142.5
  • Lowest priceQwen3.5 35B-A3BQwen3.5 35B-A3B $0.688 · Nemotron 3 Ultra 550B A55B $1.00 per 1M tokens (3:1 blend)
  • Longest contextNemotron 3 Ultra 550B A55BNemotron 3 Ultra 550B A55B 1,000,000 · Qwen3.5 35B-A3B 262,144 tokens
  • Widest inputsQwen3.5 35B-A3BQwen3.5 35B-A3B: Text, Images, Audio, Video · Nemotron 3 Ultra 550B A55B: Text
  • Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
How the score is built
MeasureWeightQwen3.5 35B-A3BNemotron 3 Ultra 550B A55B
CapabilityCapabilities Index (ECI)50%6973
Price25%5850
Inputs & features15%9045
Context window10%3760
Overall100%66/10062/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Qwen3.5 35B-A3B vs Nemotron 3 Ultra 550B A55B specifications side by side
SpecificationQwen3.5 35B-A3BAlibaba (Qwen)Nemotron 3 Ultra 550B A55BNVIDIA
Capability
Capabilities Index (ECI)142.5146.2 (best)
ECI rank#88 of 148#70 of 148 (best)
GPQA DiamondGraduate-level science questions83.5%85.4% (best)
OTIS Mock AIME 2024–2025Competition mathematics70.0%86.7% (best)
Price per million tokens
Input$0.25 (best)$0.50
Output$2.00 (best)$2.50
Cached input—$0.15
Blended (3:1)$0.688 (best)$1.00
Long-context rateSame rateSame rate
Price sourceOfficial Alibaba APIOfficial Nvidia API
Limits
Context window262,144 tokens1,000,000 tokens (best)
Max output65,536 tokens128,000 tokens (best)
Inputs and features
TextYesYes
ImagesYesNo
PDFsNoNo
AudioYesNo
VideoYesNo
ReasoningYesYes
Tool callingYesYes
Structured outputYesYes
Availability
WeightsOpenOpen
API model IDqwen3.5-35b-a3bnvidia/nemotron-3-ultra-550b-a55b
API providers1821 (best)
ReleasedFeb 23, 2026Jun 4, 2026
Knowledge cutoff——
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Qwen3.5 35B-A3B$6.50
  • Nemotron 3 Ultra 550B A55B$10.00
04 — Questions

Which should you choose?

Which is better: Qwen3.5 35B-A3B or Nemotron 3 Ultra 550B A55B?

Qwen3.5 35B-A3B is the better all-round choice, scoring 66/100 against Nemotron 3 Ultra 550B A55B (62). It leads on price and inputs & features. Nemotron 3 Ultra 550B A55B wins on capability and context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Qwen3.5 35B-A3B or Nemotron 3 Ultra 550B A55B?

Qwen3.5 35B-A3B is cheaper at $0.25 input / $2.00 output per million tokens (official Alibaba API price). Nemotron 3 Ultra 550B A55B costs $0.50 input / $2.50 output per million tokens (official Nvidia API price). At a typical mix of three input tokens to one output token, that is $0.688 per million tokens for Qwen3.5 35B-A3B versus $1.00 for Nemotron 3 Ultra 550B A55B (1.5× as much).

Which scores higher on benchmarks?

Nemotron 3 Ultra 550B A55B scores higher on the Capabilities Index (ECI): Nemotron 3 Ultra 550B A55B 146.2 (#70 of 148) and Qwen3.5 35B-A3B 142.5 (#88 of 148). The confidence ranges of the top two overlap (143.9–148.1 vs 140.2–144.8), so treat the gap as small. On individual benchmarks: GPQA Diamond — Nemotron 3 Ultra 550B A55B 85.4%, Qwen3.5 35B-A3B 83.5%; OTIS Mock AIME 2024–2025 — Nemotron 3 Ultra 550B A55B 86.7%, Qwen3.5 35B-A3B 70.0%.

Which is better for coding?

There are no published SWE-bench Verified results for Qwen3.5 35B-A3B and Nemotron 3 Ultra 550B A55B yet, so there is no like-for-like coding score. On overall capability, Nemotron 3 Ultra 550B A55B leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

Nemotron 3 Ultra 550B A55B has the largest context window at 1,000,000 tokens, against 262,144 for Qwen3.5 35B-A3B. Maximum output per response: Qwen3.5 35B-A3B up to 65,536, Nemotron 3 Ultra 550B A55B up to 128,000 tokens.

Which can read images, PDFs, audio or video?

Qwen3.5 35B-A3B accepts text, images, audio and video; Nemotron 3 Ultra 550B A55B accepts text. Qwen3.5 35B-A3B handles the widest range of inputs.

Are any of these open source?

Yes, both publish their weights, so you can self-host them.

Which is newer?

Nemotron 3 Ultra 550B A55B is the newest, released Jun 4, 2026. Qwen3.5 35B-A3B came out Feb 23, 2026.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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