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Comparison · 2 models · Updated Oct 4, 2026

Step 3.7 Flash vs Nemotron 3 Nano Omni 30B A3B Reasoning

Nemotron 3 Nano Omni 30B A3B Reasoning comes out ahead, 69 to 62 on our weighted score, and it is the cheaper option too.

  1. StepFun

    Step 3.7 Flash

    Released May 29, 2026

    62/100
    • ECI—
    • Price$0.185 / $1.11
    • Context256K
    Full specs Remove Step 3.7 Flash
  2. Our pick

    NVIDIA

    Nemotron 3 Nano Omni 30B A3B Reasoning

    Released Apr 28, 2026

    69/100
    • ECI—
    • Price$0.25 / $0.85
    • Context256K
    Full specs Remove Nemotron 3 Nano Omni 30B A3B Reasoning

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Nemotron 3 Nano Omni 30B A3B Reasoning is our pick

Nemotron 3 Nano Omni 30B A3B Reasoning is the better all-round choice, scoring 69/100 against Step 3.7 Flash (62). It leads on inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceNemotron 3 Nano Omni 30B A3B ReasoningNemotron 3 Nano Omni 30B A3B Reasoning $0.40 · Step 3.7 Flash $0.416 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameStep 3.7 Flash 256,000 · Nemotron 3 Nano Omni 30B A3B Reasoning 256,000 tokens
  • Widest inputsNemotron 3 Nano Omni 30B A3B ReasoningStep 3.7 Flash: Text, Images, Video · Nemotron 3 Nano Omni 30B A3B Reasoning: Text, Images, Audio, Video
  • Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
How the score is built
MeasureWeightStep 3.7 FlashNemotron 3 Nano Omni 30B A3B Reasoning
Price50%6869
Inputs & features30%7090
Context window20%3636
Overall100%62/10069/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

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

Step 3.7 Flash vs Nemotron 3 Nano Omni 30B A3B Reasoning specifications side by side
SpecificationStep 3.7 FlashStepFunNemotron 3 Nano Omni 30B A3B ReasoningNVIDIA
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$0.185 (best)$0.25
Output$1.11$0.85 (best)
Cached input$0.037—
Blended (3:1)$0.416$0.40 (best)
Long-context rateSame rateSame rate
Price sourceOfficial StepFun (Global) APIMedian of 4 providers
Limits
Context window256,000 tokens256,000 tokens
Max output256,000 tokens (best)65,536 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoYes
VideoYesYes
ReasoningYeslow · medium · highYes
Tool callingYesYes
Structured outputNoYes
Availability
WeightsOpenOpen
API model IDstep-3.7-flashnvidia/nemotron-3-nano-omni-30b-a3b-reasoning
API providers18 (best)8
ReleasedMay 29, 2026Apr 28, 2026
Knowledge cutoffMar 1, 2026—
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.

  • Step 3.7 Flash$4.07
  • Nemotron 3 Nano Omni 30B A3B Reasoning$4.20
04 — Questions

Which should you choose?

Which is better: Step 3.7 Flash or Nemotron 3 Nano Omni 30B A3B Reasoning?

Nemotron 3 Nano Omni 30B A3B Reasoning is the better all-round choice, scoring 69/100 against Step 3.7 Flash (62). It leads on inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Step 3.7 Flash or Nemotron 3 Nano Omni 30B A3B Reasoning?

Nemotron 3 Nano Omni 30B A3B Reasoning is cheaper at $0.25 input / $0.85 output per million tokens (median across 4 API providers; free on Nvidia). Step 3.7 Flash costs $0.185 input / $1.11 output per million tokens (official StepFun (Global) API price). At a typical mix of three input tokens to one output token, that is $0.40 per million tokens for Nemotron 3 Nano Omni 30B A3B Reasoning versus $0.416 for Step 3.7 Flash (1× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Step 3.7 Flash has not been scored yet and Nemotron 3 Nano Omni 30B A3B Reasoning has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Step 3.7 Flash and Nemotron 3 Nano Omni 30B A3B Reasoning yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Step 3.7 Flash and Nemotron 3 Nano Omni 30B A3B Reasoning share the same 256,000-token context window. Maximum output per response: Step 3.7 Flash up to 256,000, Nemotron 3 Nano Omni 30B A3B Reasoning up to 65,536 tokens.

Which can read images, PDFs, audio or video?

Step 3.7 Flash accepts text, images and video; Nemotron 3 Nano Omni 30B A3B Reasoning accepts text, images, audio and video. Nemotron 3 Nano Omni 30B A3B Reasoning 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?

Step 3.7 Flash is the newest, released May 29, 2026. Nemotron 3 Nano Omni 30B A3B Reasoning came out Apr 28, 2026. Knowledge cutoff: Step 3.7 Flash Mar 1, 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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