Model Comparison

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

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

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

Gemini 3.1 Flash Image (by Google) and Grok Imagine Image Pro (by xAI) 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.

Grok Imagine Image Pro also accepts a larger context window (131,072 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 3.1 Flash Image if…

  • you want the most recent training data — it shipped Feb 2026

Choose Grok Imagine Image Pro if…

  • you process long inputs — it offers a 131,072 token context window
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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.

Gemini 3.1 Flash Image

Proprietary

Closed source

Grok Imagine Image Pro

Proprietary

Closed source

Release Timeline

When each model was launched

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

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

Gemini 3.1 Flash Image

Feb 26, 2026

3 months ago

3w newer
Grok Imagine Image Pro

Feb 1, 2026

4 months ago

Provider Availability

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

Gemini 3.1 Flash Image

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

Grok Imagine Image Pro

xai logo
xAI
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Supports multimodal inputs
xAI
Larger context window (131,072 tokens)

Detailed Comparison

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

FAQ

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

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

Gemini 3.1 Flash Image (Google) and Grok Imagine Image Pro (xAI) 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 Gemini 3.1 Flash Image and Grok Imagine Image Pro?

Gemini 3.1 Flash Image supports 66K tokens and Grok Imagine Image Pro supports 131K 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 Grok Imagine Image Pro?

Key differences include context window (66K vs 131K), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Flash Image and Grok Imagine Image Pro?

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

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