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Comparison · 3 models · Updated Oct 4, 2026

Gemma 4 E4B IT vs Seed 2.0 Mini vs Step 3.5 Flash 2603

Seed 2.0 Mini comes out ahead, 80 to 76 and 62 on our weighted score, and it is the cheaper option too.

  1. Google

    Gemma 4 E4B IT

    Released Apr 2, 2026

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

    ByteDance Seed

    Seed 2.0 Mini

    Released Feb 14, 2026

    80/100
    • ECI—
    • Price$0.03 / $0.297
    • Context256K
  3. StepFun

    Step 3.5 Flash 2603

    Released Apr 2, 2026

    62/100
    • ECI—
    • Price$0.10 / $0.30
    • Context256K
01 — Verdict

Seed 2.0 Mini is our pick

Seed 2.0 Mini is the better all-round choice, scoring 80/100 against Gemma 4 E4B IT (76) and Step 3.5 Flash 2603 (62). It leads on price. 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 priceSeed 2.0 MiniSeed 2.0 Mini $0.097 · Gemma 4 E4B IT $0.12 · Step 3.5 Flash 2603 $0.15 per 1M tokens (3:1 blend)
  • Longest contextSeed 2.0 Mini and Step 3.5 Flash 2603Seed 2.0 Mini 256,000 · Step 3.5 Flash 2603 256,000 · Gemma 4 E4B IT 131,072 tokens
  • Widest inputsGemma 4 E4B IT and Seed 2.0 MiniGemma 4 E4B IT: Text, Images, Audio · Seed 2.0 Mini: Text, Images, Video · Step 3.5 Flash 2603: Text
  • Self-hostingGemma 4 E4B IT and Step 3.5 Flash 2603Publishes downloadable weights
How the score is built
MeasureWeightGemma 4 E4B ITSeed 2.0 MiniStep 3.5 Flash 2603
Price50%949889
Inputs & features30%808035
Context window20%243636
Overall100%76/10080/10062/100

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 Seed 2.0 Mini vs Step 3.5 Flash 2603 specifications side by side
SpecificationGemma 4 E4B ITGoogleSeed 2.0 MiniByteDance SeedStep 3.5 Flash 2603StepFun
Capability
Capabilities Index (ECI)———
ECI rank———
Price per million tokens
Input$0.11$0.03 (best)$0.10
Output$0.15 (best)$0.297$0.30
Cached input—$0.0059 (best)$0.02
Blended (3:1)$0.12$0.097 (best)$0.15
Long-context rateSame rateOver 32K: $0.059 / $0.594Same rate
Price sourceMedian of 2 providersOfficial Volcengine Ark APIOfficial StepFun (Global) API
Limits
Context window131,072 tokens256,000 tokens (best)256,000 tokens (best)
Max output8,192 tokens32,000 tokens256,000 tokens (best)
Inputs and features
TextYesYesYes
ImagesYesYesNo
PDFsNoNoNo
AudioYesNoNo
VideoNoYesNo
ReasoningYesYesminimal · low · medium · high · xhigh · maxYeslow · high
Tool callingYesYesYes
Structured outputYesYesNo
Availability
WeightsOpenProprietaryOpen
API model ID—doubao-seed-2-0-mini-260428step-3.5-flash-2603
API providers28 (best)3
ReleasedApr 2, 2026Feb 14, 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
  • Seed 2.0 Mini$0.891
  • Step 3.5 Flash 2603$1.60
04 — Questions

Which should you choose?

Which is better: Gemma 4 E4B IT, Seed 2.0 Mini or Step 3.5 Flash 2603?

Seed 2.0 Mini is the better all-round choice, scoring 80/100 against Gemma 4 E4B IT (76) and Step 3.5 Flash 2603 (62). It leads on price. 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, Seed 2.0 Mini or Step 3.5 Flash 2603?

Seed 2.0 Mini is cheaper at $0.03 input / $0.297 output per million tokens (official Volcengine Ark API price). Gemma 4 E4B IT costs $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 $0.097 per million tokens for Seed 2.0 Mini versus $0.12 for Gemma 4 E4B IT (1.2× as much) and $0.15 for Step 3.5 Flash 2603 (1.6× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers all three models yet. Gemma 4 E4B IT has not been scored yet, Seed 2.0 Mini 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, Seed 2.0 Mini 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. All three support tool calling for agent workflows.

Which has the bigger context window?

Seed 2.0 Mini and Step 3.5 Flash 2603 have the largest context windows (256,000 and 256,000 tokens), against 131,072 for Gemma 4 E4B IT. Maximum output per response: Gemma 4 E4B IT up to 8,192, Seed 2.0 Mini up to 32,000, 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; Seed 2.0 Mini accepts text, images and video; Step 3.5 Flash 2603 accepts text. Gemma 4 E4B IT handles the widest range of inputs.

Are any of these open source?

Gemma 4 E4B IT and Step 3.5 Flash 2603 publishes its weights and can be self-hosted; Seed 2.0 Mini is proprietary.

Which is newer?

Gemma 4 E4B IT is the newest, released Apr 2, 2026. Step 3.5 Flash 2603 came out Apr 2, 2026; Seed 2.0 Mini came out Feb 14, 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.