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Gemini 3.1 Flash Image vs GLM-Image

Comparing Gemini 3.1 Flash Image and GLM-Image across benchmarks, pricing, and capabilities.

Google · Zhipu AI · Updated for 2026

Which is better?

Gemini 3.1 Flash Image and GLM-Image trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

Gemini 3.1 Flash Image also accepts a larger context window (65,536 input tokens), making it the stronger choice for long documents and large codebases.

Based on current benchmark, pricing, and model metadata for 2026.

Choose Gemini 3.1 Flash Image

  • you process long inputs — it offers a 65,536 token context window
  • you want the most recent training data — it shipped Feb 2026

Choose GLM-Image

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 3.1 Flash Image
Google
GLM-Image
Zhipu AI
Benchmark wins
—
—
Input price
$0.50 / M
— / M
Output price
$30.00 / M
— / M
Context window
65,536
4,096
Released
Feb 2026
Jan 2026
License
Proprietary
MIT

Arena Performance

Human preference votes

License

Usage and distribution terms

Gemini 3.1 Flash Image is licensed under a proprietary license, while GLM-Image uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 3.1 Flash Image

Proprietary

Closed source

GLM-Image

MIT

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Flash Image was released on 2026-02-26, while GLM-Image was released on 2026-01-14.

Gemini 3.1 Flash Image is 1 month newer than GLM-Image.

Gemini 3.1 Flash Image

Feb 26, 2026

6 months ago

1mo newer
GLM-Image

Jan 14, 2026

7 months ago

Provider Availability

Gemini 3.1 Flash Image is available from Google. GLM-Image is available from ZAI, Fal.

Gemini 3.1 Flash Image

google logo
Google
Input Price:Input: $0.50/1MOutput Price:Output: $30.00/1M

GLM-Image

z logo
Unknown Organization
fal logo
Fal
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 3.1 Flash Image and GLM-Image side-by-side, then vote on the output you prefer.

Gemini 3.1 Flash Image
✓ Preferred
GLM-Image
Open in Playground

FAQ

Common questions about Gemini 3.1 Flash Image vs GLM-Image.

Which is better, Gemini 3.1 Flash Image or GLM-Image?

Gemini 3.1 Flash Image (Google) and GLM-Image (Zhipu AI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Gemini 3.1 Flash Image compare to GLM-Image in benchmarks?

GLM-Image scores LongText-Bench: 96.6%, CVTG-2K: 91.2%.

What are the context window sizes for Gemini 3.1 Flash Image and GLM-Image?

Gemini 3.1 Flash Image supports 66K tokens and GLM-Image supports 4K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.1 Flash Image and GLM-Image?

Key differences include context window (66K vs 4K), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Flash Image and GLM-Image?

Gemini 3.1 Flash Image is developed by Google and GLM-Image is developed by Zhipu AI.

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