Model Comparison

Grok Imagine Image vs Gemini 3.1 Flash ImageWhich is better in 2026?

Comparing Grok Imagine Image and Gemini 3.1 Flash Image across benchmarks, pricing, and capabilities.

Verdict: Grok Imagine Image vs Gemini 3.1 Flash Image — which is better?

Grok Imagine Image (by xAI) and Gemini 3.1 Flash Image (by Google) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

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.

Choose Grok Imagine Image if…

  • you are already invested in the xAI ecosystem

Choose Gemini 3.1 Flash Image if…

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

Human preference votes

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Grok Imagine Image

Proprietary

Closed source

Gemini 3.1 Flash Image

Proprietary

Closed source

Release Timeline

When each model was launched

Grok Imagine Image was released on 2026-01-28, while Gemini 3.1 Flash Image was released on 2026-02-26.

Gemini 3.1 Flash Image is 1 month newer than Grok Imagine Image.

Grok Imagine Image

Jan 28, 2026

4 months ago

Gemini 3.1 Flash Image

Feb 26, 2026

3 months ago

4w newer

Provider Availability

Grok Imagine Image is available from xAI. Gemini 3.1 Flash Image is available from Google.

Grok Imagine Image

xai logo
xAI

Gemini 3.1 Flash Image

google logo
Google
Input Price:Input: $0.50/1MOutput Price:Output: $30.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

xAI

No standout differentiators in the data we have for this pair.

Google
Larger context window (65,536 tokens)

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok Imagine Image
Google
Gemini 3.1 Flash Image

FAQ

Common questions about Grok Imagine Image vs Gemini 3.1 Flash Image.

Which is better, Grok Imagine Image or Gemini 3.1 Flash Image?

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

What are the context window sizes for Grok Imagine Image and Gemini 3.1 Flash Image?

Grok Imagine Image supports 10K tokens and Gemini 3.1 Flash Image supports 66K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok Imagine Image and Gemini 3.1 Flash Image?

Key differences include context window (10K vs 66K). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok Imagine Image and Gemini 3.1 Flash Image?

Grok Imagine Image is developed by xAI and Gemini 3.1 Flash Image is developed by Google.

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