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Comparison · 2 models · Updated Oct 4, 2026

Gemma 4 E4B IT vs Step 3.5 Flash 2603

Gemma 4 E4B IT comes out ahead, 76 to 62 on our weighted score, and it is the cheaper option too.

  1. Our pick

    Google

    Gemma 4 E4B IT

    Released Apr 2, 2026

    76/100
    • ECI—
    • Price$0.11 / $0.15
    • Context131K
  2. StepFun

    Step 3.5 Flash 2603

    Released Apr 2, 2026

    62/100
    • ECI—
    • Price$0.10 / $0.30
    • Context256K
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Gemma 4 E4B IT is our pick

Gemma 4 E4B IT is the better all-round choice, scoring 76/100 against Step 3.5 Flash 2603 (62). It leads on price and inputs & features. Step 3.5 Flash 2603 wins on context window. 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 priceGemma 4 E4B ITGemma 4 E4B IT $0.12 · Step 3.5 Flash 2603 $0.15 per 1M tokens (3:1 blend)
  • Longest contextStep 3.5 Flash 2603Step 3.5 Flash 2603 256,000 · Gemma 4 E4B IT 131,072 tokens
  • Widest inputsGemma 4 E4B ITGemma 4 E4B IT: Text, Images, Audio · Step 3.5 Flash 2603: Text
  • Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
How the score is built
MeasureWeightGemma 4 E4B ITStep 3.5 Flash 2603
Price50%9489
Inputs & features30%8035
Context window20%2436
Overall100%76/10062/100

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.

Gemma 4 E4B IT vs Step 3.5 Flash 2603 specifications side by side
SpecificationGemma 4 E4B ITGoogleStep 3.5 Flash 2603StepFun
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$0.11$0.10 (best)
Output$0.15 (best)$0.30
Cached input—$0.02
Blended (3:1)$0.12 (best)$0.15
Long-context rateSame rateSame rate
Price sourceMedian of 2 providersOfficial StepFun (Global) API
Limits
Context window131,072 tokens256,000 tokens (best)
Max output8,192 tokens256,000 tokens (best)
Inputs and features
TextYesYes
ImagesYesNo
PDFsNoNo
AudioYesNo
VideoNoNo
ReasoningYesYeslow · high
Tool callingYesYes
Structured outputYesNo
Availability
WeightsOpenOpen
API model ID—step-3.5-flash-2603
API providers23 (best)
ReleasedApr 2, 2026Apr 2, 2026
Knowledge cutoff—Jan 2025
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.

  • Gemma 4 E4B IT$1.40
  • Step 3.5 Flash 2603$1.60
04 — Questions

Which should you choose?

Which is better: Gemma 4 E4B IT or Step 3.5 Flash 2603?

Gemma 4 E4B IT is the better all-round choice, scoring 76/100 against Step 3.5 Flash 2603 (62). It leads on price and inputs & features. Step 3.5 Flash 2603 wins on context window. 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, Gemma 4 E4B IT or Step 3.5 Flash 2603?

Gemma 4 E4B IT is cheaper at $0.11 input / $0.15 output per million tokens (median across 2 API providers). Step 3.5 Flash 2603 costs $0.10 input / $0.30 output per million tokens (official StepFun (Global) API price). At a typical mix of three input tokens to one output token, that is $0.12 per million tokens for Gemma 4 E4B IT versus $0.15 for Step 3.5 Flash 2603 (1.3× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Gemma 4 E4B IT has not been scored yet and Step 3.5 Flash 2603 has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Gemma 4 E4B IT and Step 3.5 Flash 2603 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 3.5 Flash 2603 has the largest context window at 256,000 tokens, against 131,072 for Gemma 4 E4B IT. Maximum output per response: Gemma 4 E4B IT up to 8,192, Step 3.5 Flash 2603 up to 256,000 tokens.

Which can read images, PDFs, audio or video?

Gemma 4 E4B IT accepts text, images and audio; Step 3.5 Flash 2603 accepts text. Gemma 4 E4B IT 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?

Gemma 4 E4B IT is the newest, released Apr 2, 2026. Step 3.5 Flash 2603 came out Apr 2, 2026. Knowledge cutoff: Step 3.5 Flash 2603 Jan 2025.

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.