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Five or fewer confirmed AI changes, with original sources, on mornings when something changed.A free source-linked morning brief.

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Model A
Gemma 4 26B A4B

Google

57.2/100

Supported · Public rank #85

90% interval 39.6–74.7

Gemma 4 26B A4B vs Qwen3.5 397B

Updated August 18, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

Model B
Qwen3.5 397B

Alibaba

57.5/100

Estimated · Public rank #82

90% interval 45.9–69.0

Decision reading

Qwen3.5 397B has the higher public score estimate, 57.46 versus 57.16, but the 90% score intervals overlap. Treat that as a lead, not a settled winner.

3 results are shared. Category rows based on different benchmark sets are marked directional and do not name a winner.

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.

  • Long documents

    Prompts that approach the documented context limit

    Gemma 4 26B A4B

    Gemma 4 26B A4B has the larger documented context window.

    Confidence: documented

Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    No shared weighted benchmark basis supports a winner.

    Confidence: limited

  • Agentic work

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

    Not enough matched evidence

    No shared weighted benchmark basis supports a winner.

    Confidence: limited

  • 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. Qwen3.5 397B does not fit this workload in one request. Qwen3.5 397B has no published cached-input rate, so cached tokens use its listed input rate. Gemma 4 26B A4B has no comparable published API token rate.

    Confidence: rate-fallback

  • 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

What is actually comparable

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

Shared results
3
Gemma 4 26B A4B only
1
Qwen3.5 397B only
35
Like-for-like categories
0 / 8

2 categories use different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Category results, on a stated basis

Each row states whether both averages use the same weighted benchmark set. Directional and not-comparable rows remain visible, but they never receive a winner in this template.

Knowledge

Directional only
Gemma 4 26B A4B
43.4
Qwen3.5 397B
56.6
Weighted basis
2 vs 4 rows
Reading
Directional only

Multimodal

Directional only
Gemma 4 26B A4B
73.8
Qwen3.5 397B
79.6
Weighted basis
1 vs 2 rows
Reading
Directional only

Agentic

Not comparable
Gemma 4 26B A4B
Not measured
Qwen3.5 397B
56.5
Weighted basis
0 vs 2 rows
Reading
Not comparable

Coding

Not comparable
Gemma 4 26B A4B
Not measured
Qwen3.5 397B
66.5
Weighted basis
0 vs 2 rows
Reading
Not comparable

Reasoning

Not comparable
Gemma 4 26B A4B
Not measured
Qwen3.5 397B
63.2
Weighted basis
0 vs 1 rows
Reading
Not comparable

Math

Not comparable
Gemma 4 26B A4B
Not measured
Qwen3.5 397B
90.6
Weighted basis
0 vs 2 rows
Reading
Not comparable

Multilingual

Not comparable
Gemma 4 26B A4B
Not measured
Qwen3.5 397B
84.7
Weighted basis
0 vs 1 rows
Reading
Not comparable

Instruction following

Not comparable
Gemma 4 26B A4B
Not measured
Qwen3.5 397B
92.6
Weighted basis
0 vs 1 rows
Reading
Not comparable

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.

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 26B A4B
Self-hosted; infrastructure cost varies
Fits in one request
Qwen3.5 397B
$0.0024
Fits in one request

Gemma 4 26B A4B has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

Gemma 4 26B A4B
Self-hosted; infrastructure cost varies
Fits in one request
Qwen3.5 397B
$0.0408
Fits in one request

Gemma 4 26B A4B has no comparable published API token rate.

Cache-heavy agent loop

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

Gemma 4 26B A4B
Self-hosted; infrastructure cost varies
Fits in one request
Cached-input rate unavailable
Qwen3.5 397B
$0.168
Does not fit in one request
Cached input priced at the published list-input rate

Qwen3.5 397B does not fit this workload in one request. Qwen3.5 397B has no published cached-input rate, so cached tokens use its listed input rate. Gemma 4 26B A4B has no comparable published API token rate.

Specification differences

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

Cached-input rate

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

Gemma 4 26B A4B

No comparable hosted API rate

Qwen3.5 397B

Not published

Provider availability

Gemma 4 26B A4B

Generally Available · Gemini API, Google AI Studio, open weights

Google Gemma Gemini API guide

Qwen3.5 397B

Not sourced

Reasoning profile

Gemma 4 26B A4B

Reasoning

Qwen3.5 397B

Non-Reasoning

Weight access

Gemma 4 26B A4B

Open Weight

Qwen3.5 397B

Open Weight

License

Gemma 4 26B A4B

Open Weight

Qwen3.5 397B

Open Weight

Release date

Gemma 4 26B A4B

2026-04-02

Qwen3.5 397B

2026-02-16

If you already use one of these models
Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
Qwen3.5 397B has the higher public score estimate, 57.46 versus 57.16, but the 90% score intervals overlap.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
Gemma 4 26B A4B has the larger documented window (256K).

Run the same representative tasks against both endpoints before changing production traffic.

Benchmark evidence

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

Browse raw public benchmark evidence39 rows

Agentic

  • Terminal-Bench 2.0

    Gemma 4 26B A4B
    Qwen3.5 397B52.5%
    Source

    Not directly comparable

  • BrowseComp

    Gemma 4 26B A4B
    Qwen3.5 397B62%
    Source

    Not directly comparable

  • Claw-Eval

    Gemma 4 26B A4B
    Qwen3.5 397B56.8%
    Source

    Not directly comparable

  • QwenClawBench

    Gemma 4 26B A4B
    Qwen3.5 397B51.8%
    Source

    Not directly comparable

  • τ³-bench results

    Gemma 4 26B A4B
    Qwen3.5 397B68.4%
    Source

    Not directly comparable

  • VITA-Bench

    Gemma 4 26B A4B
    Qwen3.5 397B43.7%
    Source

    Not directly comparable

  • DeepPlanning

    Gemma 4 26B A4B
    Qwen3.5 397B37.6%
    Source

    Not directly comparable

  • Toolathlon

    Gemma 4 26B A4B
    Qwen3.5 397B36.3%
    Source

    Not directly comparable

  • MCP Atlas

    Gemma 4 26B A4B
    Qwen3.5 397B46.1%
    Source

    Not directly comparable

  • MCP-Tasks

    Gemma 4 26B A4B
    Qwen3.5 397B74.2%
    Source

    Not directly comparable

  • WideResearch

    Gemma 4 26B A4B
    Qwen3.5 397B74.0%
    Source

    Not directly comparable

  • Gert Labs

    Gemma 4 26B A4B
    Qwen3.5 397B46.76%
    Source

    Not directly comparable

  • ResearchClawBench

    Gemma 4 26B A4B
    Qwen3.5 397B14.2%
    Source

    Not directly comparable

Coding

  • SWE-bench Verified

    Gemma 4 26B A4B
    Qwen3.5 397B76.2%
    Source

    Not directly comparable

  • LiveCodeBench v6

    Gemma 4 26B A4B
    Qwen3.5 397B83.6%
    Source

    Not directly comparable

  • SWE-bench Pro

    Gemma 4 26B A4B
    Qwen3.5 397B50.9%
    Source

    Not directly comparable

Reasoning

  • LongBench v2

    Gemma 4 26B A4B
    Qwen3.5 397B63.2%
    Source

    Not directly comparable

  • AI-Needle

    Gemma 4 26B A4B
    Qwen3.5 397B68.7%
    Source

    Not directly comparable

Knowledge

  • MMLU-Pro

    Gemma 4 26B A4B82.6%
    Source
    Qwen3.5 397B87.8%
    Source

    Qwen3.5 397B leads this result

  • HLE

    Gemma 4 26B A4B17.2%
    Source
    Qwen3.5 397B28.7%
    Source

    Qwen3.5 397B leads this result

  • HLE w/o tools

    Gemma 4 26B A4B8.7%
    Source
    Qwen3.5 397B

    Not directly comparable

  • GPQA

    Gemma 4 26B A4B
    Qwen3.5 397B88.4%
    Source

    Not directly comparable

  • SuperGPQA

    Gemma 4 26B A4B
    Qwen3.5 397B70.4%
    Source

    Not directly comparable

  • MMLU-Redux

    Gemma 4 26B A4B
    Qwen3.5 397B94.9%
    Source

    Not directly comparable

  • C-Eval

    Gemma 4 26B A4B
    Qwen3.5 397B93%
    Source

    Not directly comparable

Math

  • AIME26

    Gemma 4 26B A4B
    Qwen3.5 397B93.3%
    Source

    Not directly comparable

  • HMMT Feb 2025

    Gemma 4 26B A4B
    Qwen3.5 397B94.8%
    Source

    Not directly comparable

  • HMMT Nov 2025

    Gemma 4 26B A4B
    Qwen3.5 397B92.7%
    Source

    Not directly comparable

  • HMMT Feb 2026

    Gemma 4 26B A4B
    Qwen3.5 397B87.9%
    Source

    Not directly comparable

  • MMAnswerBench

    Gemma 4 26B A4B
    Qwen3.5 397B80.9%
    Source

    Not directly comparable

Multilingual

  • MMLU-ProX

    Gemma 4 26B A4B
    Qwen3.5 397B84.7%
    Source

    Not directly comparable

  • NOVA-63

    Gemma 4 26B A4B
    Qwen3.5 397B59.1%
    Source

    Not directly comparable

Multimodal

  • MMMU-Pro

    Gemma 4 26B A4B73.8%
    Source
    Qwen3.5 397B79%
    Source

    Qwen3.5 397B leads this result

  • MathVision

    Gemma 4 26B A4B
    Qwen3.5 397B88.6%
    Source

    Not directly comparable

  • CharXiv

    Gemma 4 26B A4B
    Qwen3.5 397B80.8%
    Source

    Not directly comparable

  • VideoMMMU

    Gemma 4 26B A4B
    Qwen3.5 397B84.7%
    Source

    Not directly comparable

  • ScreenSpot Pro

    Gemma 4 26B A4B
    Qwen3.5 397B65.6%
    Source

    Not directly comparable

  • V*

    Gemma 4 26B A4B
    Qwen3.5 397B95.8%
    Source

    Not directly comparable

Instruction following

  • IFEval

    Gemma 4 26B A4B
    Qwen3.5 397B92.6%
    Source

    Not directly comparable

Frequently asked questions

Which is better, Gemma 4 26B A4B or Qwen3.5 397B?

Qwen3.5 397B has the higher public score estimate, 57.46 versus 57.16, 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 26B A4B or Qwen3.5 397B?

The published evidence does not provide a shared weighted coding basis for both models, so BenchLM does not name a coding winner.

Which is better for agentic tasks, Gemma 4 26B A4B or Qwen3.5 397B?

The published evidence does not provide a shared weighted agentic tasks basis for both models, so BenchLM does not name a agentic tasks winner.

Which costs less, Gemma 4 26B A4B or Qwen3.5 397B?

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 26B A4B or Qwen3.5 397B?

Gemma 4 26B A4B has the larger documented context window: 256K, compared with 128K.

Related comparisons

Last updated August 18, 2026

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