AI Models · Open-Source vs Paid

Gemma 4 26B A4B Open vs Gemini 3.1 Pro Preview Paid

Gemma 4 26B A4B vs Gemini 3.1 Pro Preview compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Gemma 4 26B A4BOpenGoogle
$0.04 /M input
$0.22 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window262K tokens
MultimodalYes
Self-hostYes
Gemini 3.1 Pro PreviewPaidGoogle
$2 /M input
$12 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
Choose Gemma 4 26B A4B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Gemini 3.1 Pro Preview if you want frontier capability through a managed API with zero infrastructure to run.

Gemma 4 26B A4B vs Gemini 3.1 Pro Preview specs

SpecGemma 4 26B A4BGemini 3.1 Pro PreviewWinner
MakerGoogleGoogle
TypeOpen-weightProprietaryGemma 4 26B A4B
Context window262K tokens1M tokensGemini 3.1 Pro Preview
Input price$0.04/M · free self-host$2/MGemma 4 26B A4B
Output price$0.22/M · free self-host$12/MGemma 4 26B A4B
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Gemma 4 26B A4B
LicenseGemma LicenseProprietaryGemma 4 26B A4B

Price gap & when to choose each

55×cheaper per output token

Gemma 4 26B A4B is ~55× cheaper than Gemini 3.1 Pro Preview on output tokens ($0.22 vs $12 per M tokens).

Choose Gemma 4 26B A4B if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose Gemini 3.1 Pro Preview if…
  • You want frontier performance through a managed API
  • You need the longer 1M context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityGemma 4 26B A4BGemini 3.1 Pro Preview
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Gemma 4 26B A4B vs Gemini 3.1 Pro Preview

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Gemma 4 26B A4B delivers 14× more intelligence per dollar.
Gemma 4 26B A4B
Gemini 3.1 Pro Preview
Intelligence index
16.7
30.4
Coding index
39.3
68.8
GPQA
79.2%
94.1%
Humanity's Last Exam
19.3%
47%
Long Context Reasoning
65.7%
82%
IFBench
72.4%
77.1%
τ²-Bench
43.6%
95.6%
τ-Bench Banking
12%
21.4%
Terminal-Bench
39%
73.8%
Terminal-Bench Hard
13.6%
53.8%
SciCode
58.7%
Speed
0 tok/s
125.2 tok/s
Latency
0s
24.48s
Intelligence per $
93.3
6.8

Benchmark data by Artificial Analysis.

How Gemma 4 26B A4B and Gemini 3.1 Pro Preview score

🏆 Best value & openness: Gemma 4 26B A4B (4.8 vs 3.2 / 5)
CriterionGemma 4 26B A4BGemini 3.1 Pro Preview
Cost-efficiency5.03.5
Context window4.05.0
Openness5.01.5
Self-hosting5.01.0
Multimodality5.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Gemma 4 26B A4B Open

Google · Open-weight

Gemma 4 26B A4B IT is an instruction-tuned Mixture-of-Experts (MoE) model from Google DeepMind. Despite 25.2B total parameters, only 3.8B activate per token during inference — delivering near-31B quality at...

Gemini 3.1 Pro Preview Paid

Google · Proprietary

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation.

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Gemma 4 26B A4B (free)Gemma 4 31B (batch)Gemma 4 31BGemma 4 31B (free)Gemma 3 27BGemma 3 4BGemma 3 12BGemma 2 27B
Other variants tracked
Gemini 3.1 Pro Preview (batch)Gemini 2.5 ProGemini 2.5 Pro (batch)Gemini 2.5 Pro Preview 05-06Gemini 3.1 Pro Preview Custom ToolsNano Banana Pro (Gemini 3 Pro Image Preview)

Frequently asked questions

Is Gemma 4 26B A4B as good as Gemini 3.1 Pro Preview?

Gemma 4 26B A4B is open-weight and competitive on many tasks, but Gemini 3.1 Pro Preview may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Gemma 4 26B A4B locally?

Yes. Gemma 4 26B A4B has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Gemini 3.1 Pro Preview is API-only and cannot be self-hosted.

How much cheaper is Gemma 4 26B A4B?

Gemma 4 26B A4B costs $0.22/M output vs $12/M for Gemini 3.1 Pro Preview — roughly 55x cheaper via API, and free if you self-host.

Gemma 4 26B A4B vs Gemini 3.1 Pro Preview — which should I pick in 2026?

Choose Gemma 4 26B A4B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Gemini 3.1 Pro Preview if you want frontier capability through a managed API with zero infrastructure to run.

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