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Gemini 3.8 Flash vs Gemini Diffusion

Gemini 3.8 Flash leads the LLM Stats Score 51.0 to 1.0.

Google · Google · Updated for 2026

Which is better?

Gemini 3.8 Flash leads the overall LLM Stats Score 51.0 to 1.0, ranking #15 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 3.8 Flash

  • overall performance matters — it scores 51.0 and ranks #15 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Gemini Diffusion

  • you are already invested in the Google ecosystem

At a glance

The differences that matter most.

Gemini 3.8 Flash
Google
Gemini Diffusion
Google
Core performance indexes
LLM Stats Score
51.0
#15
1.0
#311
Reasoning
46.9
#24
1.0
#301
Coding
39.3
#14
3.0
#213
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.75 / M
— / M
Output price
$3.75 / M
— / M
Context window
1,048,576
—

Individual benchmarks

13 reported for Gemini 3.8 Flash · 10 for Gemini Diffusion

No common benchmarks found

Gemini 3.8 Flash and Gemini Diffusiondon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Gemini 3.8 Flash specifies input context (1,048,576 tokens). Only Gemini 3.8 Flash specifies output context (65,536 tokens).

Google
Gemini 3.8 Flash
Input1,048,576 tokens
Output65,536 tokens
Google
Gemini Diffusion
Input- tokens
Output- tokens
Fri Sep 04 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemini 3.8 Flash supports multimodal inputs, whereas Gemini Diffusion does not.

Gemini 3.8 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3.8 Flash

Text
Images
Audio
Video

Gemini Diffusion

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 3.8 Flash

Proprietary

Closed source

Gemini Diffusion

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.8 Flash was released on 2026-09-02, while Gemini Diffusion was released on 2025-05-20.

Gemini 3.8 Flash is 16 months newer than Gemini Diffusion.

Gemini 3.8 Flash

Sep 2, 2026

1 days ago

1.3yr newer
Gemini Diffusion

May 20, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

Gemini 3.8 Flash has a documented knowledge cutoff of 2026-03-31, while Gemini Diffusion's cutoff date is not specified.

We can confirm Gemini 3.8 Flash's training data extends to 2026-03-31, but cannot make a direct comparison without Gemini Diffusion's cutoff date.

Gemini 3.8 Flash

Mar 2026

Gemini Diffusion

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 3.8 Flash and Gemini Diffusion side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash
✓ Preferred
Gemini Diffusion
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash vs Gemini Diffusion.

Which is better, Gemini 3.8 Flash or Gemini Diffusion?

Gemini 3.8 Flash leads the LLM Stats Score 51.0 to 1.0. Gemini 3.8 Flash is made by Google and Gemini Diffusion is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3.8 Flash compare to Gemini Diffusion in benchmarks?

Gemini 3.8 Flash scores Terminal-Bench 2.1: 89.4%, LVBench: 87.1%, CharXiv-R: 86.2%, LABBench2: 86.2%, DeepSWE 1.1: 73.7%. Gemini Diffusion scores HumanEval: 89.6%, MBPP: 76.0%, Global-MMLU-Lite: 69.1%, LBPP (v2): 56.8%, BigCodeBench: 45.4%.

What are the context window sizes for Gemini 3.8 Flash and Gemini Diffusion?

Gemini 3.8 Flash supports 1.0M tokens and Gemini Diffusion supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.8 Flash and Gemini Diffusion?

Key differences include LLM Stats Score (51.0 vs 1.0), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

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