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BenchLM

Gemma 4 E2B vs Gemma 4 E4B

Updated September 30, 2026. Rank says Gemma 4 E4B is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty. This is a same-family comparison, so migration details appear when the source data supports them.

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Decision reading

Gemma 4 E4B has the higher public score estimate, 33.27 versus 32.45, but the 90% score intervals overlap. Treat that as a lead, not a settled winner. 2 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
Google logo

Google

32.45/100

Estimated · Public rank #153

90% interval 20.9–44.0

Model B
Google logo

Google

33.27/100

Estimated · Public rank #149

90% interval 21.8–44.8

Shared results
2
Gemma 4 E2B only
0
Gemma 4 E4B only
0
Like-for-like categories
0 / 8
Estimated: Gemma 4 E2B and Gemma 4 E4BHow the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

No workload recommendation clears the current evidence threshold.

Use the matched evidence, workload costs, and sourced specifications below instead of treating a point score as a universal answer.

Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    Gemma 4 E2B and Gemma 4 E4B are scored on Estimated evidence for coding, so the reading is directional rather than like-for-like.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    Gemma 4 E2B and Gemma 4 E4B are not ranked on the public lane for agentic, so no winner is named for agentic.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    No clear pick

    The documented context windows are equal.

    Confidence: documented
  • Chat turn cost

    1K fresh input + 500 output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. Gemma 4 E2B does not fit this workload in one request. Gemma 4 E4B does not fit this workload in one request. Gemma 4 E2B has no comparable published API token rate. Gemma 4 E4B has no comparable published API token rate.

    Confidence: listed-rates
  • Repository review cost

    50K fresh input + 3K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

19.0Gemma 4 E2B20.1Gemma 4 E4B

Directional only · BenchAlign v5.7

Gemma 4 E4B scores higher, but at least one score rests on Estimated evidence or a different benchmark set. Directional only, no winner.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

3 categories rest on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

  • GPQAKnowledge

    Normalized gap 15.2
    Gemma 4 E2B:43.4%
    Gemma 4 E4B:58.6%
  • MMLU-ProKnowledge

    Normalized gap 9.4
    Gemma 4 E2B:60%
    Gemma 4 E4B:69.4%
Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.7 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Coding

Directional only
Gemma 4 E2B
19.0
Estimated · #130/143
Gemma 4 E4B
20.1
Estimated · #122/143
Basis
BenchAlign v5.7 lane · 0 vs 0 public rows
Reading
Directional only

Knowledge

Directional only
Gemma 4 E2B
27.9
Estimated · #154/169
Gemma 4 E4B
29.6
Estimated · #145/169
Basis
BenchAlign v5.7 lane · 2 vs 2 public rows
Reading
Directional only

Instruction following

Directional only
Gemma 4 E2B
42.4
#96/124
Gemma 4 E4B
50.5
#80/124
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Directional only

Agentic

Not comparable
Gemma 4 E2B
Not ranked
Gemma 4 E4B
Not ranked
Basis
BenchAlign v5.7 lane · 0 vs 0 public rows
Reading
Not comparable

Reasoning

Not comparable
Gemma 4 E2B
33.3
Unranked · 2 rankable rows
Gemma 4 E4B
44.2
Unranked · 2 rankable rows
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Gemma 4 E2B
26.9
Unranked · 1 rankable row
Gemma 4 E4B
36.9
Unranked · 1 rankable row
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
Gemma 4 E2B
Not ranked
Gemma 4 E4B
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
Gemma 4 E2B
Not ranked
Gemma 4 E4B
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.7) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

Gemma 4 E2B
Self-hosted; infrastructure cost varies
Fits in one request
Gemma 4 E4B
Self-hosted; infrastructure cost varies
Fits in one request

Gemma 4 E2B has no comparable published API token rate. Gemma 4 E4B has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

Gemma 4 E2B
Self-hosted; infrastructure cost varies
Fits in one request
Gemma 4 E4B
Self-hosted; infrastructure cost varies
Fits in one request

Gemma 4 E2B has no comparable published API token rate. Gemma 4 E4B has no comparable published API token rate.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

Gemma 4 E2B
Self-hosted; infrastructure cost varies
Does not fit in one request
Cached-input rate unavailable
Gemma 4 E4B
Self-hosted; infrastructure cost varies
Does not fit in one request
Cached-input rate unavailable

Gemma 4 E2B does not fit this workload in one request. Gemma 4 E4B does not fit this workload in one request. Gemma 4 E2B has no comparable published API token rate. Gemma 4 E4B has no comparable published API token rate.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

API model ID

Gemma 4 E2B

Not sourced

Gemma 4 E4B

Not sourced

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

Gemma 4 E2B

No comparable hosted API rate

Gemma 4 E4B

No comparable hosted API rate

Reasoning profile

Gemma 4 E2B

Reasoning

Gemma 4 E4B

Reasoning

Weight access

Gemma 4 E2B

Open Weight

Gemma 4 E4B

Open Weight

License

Gemma 4 E2B

Open Weight

Gemma 4 E4B

Open Weight

Release date

Gemma 4 E2B

2026-04-02

Gemma 4 E4B

2026-04-02

If you are choosing between sibling variants

Deployment change
Both entries list Google as the provider. Confirm endpoint, model ID, limits, and feature support before switching.
Quality signal
Gemma 4 E4B has the higher public score estimate, 33.27 versus 32.45, but the 90% score intervals overlap.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
Both models list 128K.
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, Gemma 4 E2B or Gemma 4 E4B?

Gemma 4 E4B has the higher public score estimate, 33.27 versus 32.45, but the 90% score intervals overlap. The higher estimate is not a decisive winner because the uncertainty ranges overlap.

Which is better for coding, Gemma 4 E2B or Gemma 4 E4B?

Gemma 4 E4B scores higher for coding on the public lane, 20.1 to 19. Gemma 4 E2B and Gemma 4 E4B are scored on Estimated evidence for coding, so the reading is directional rather than like-for-like. BenchLM does not name a winner for coding from a directional reading; read the shared benchmark rows directly and test the models on the same task set.

Which is better for agentic tasks, Gemma 4 E2B or Gemma 4 E4B?

Gemma 4 E2B and Gemma 4 E4B are not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.

Which costs less, Gemma 4 E2B or Gemma 4 E4B?

Both models do not have comparable published API token rates, so this page does not name a universal price winner.

Which has the larger context window, Gemma 4 E2B or Gemma 4 E4B?

Both models list the same context window, 128K.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence2 rows

Knowledge

  • Gemma 4 E2B43.4%
    Gemma 4 E4B58.6%

    Gemma 4 E4B leads this result

  • Gemma 4 E2B60%
    Gemma 4 E4B69.4%

    Gemma 4 E4B leads this result

2 public results · 2 shared

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Last updated September 30, 2026