DiffusionGemma 26B-A4B (Reasoning)

by Google

DiffusionGemma 26B-A4B (Reasoning) is a reasoning model from Google, released on June 10, 2026. It ranks #126 of 220 models by Intelligence Score with a score of 19.4.

DiffusionGemma 26B-A4B is Google DeepMind's experimental open-weights text diffusion model based on the Gemma 4 26B-A4B Mixture-of-Experts architecture. It uses discrete diffusion to denoise 256-token canvases in parallel, targeting low-latency local and low-concurrency generation workloads with up to 4x faster text generation on dedicated GPUs. The model has 25.2 billion total parameters, 3.8 billion active parameters, a 256K context window, and multimodal text and image inputs.

Key specs

ProviderGoogle
Release date2026-06-10
Licenseopen source
Intelligence Score19.4

Quick answers

Is DiffusionGemma 26B-A4B (Reasoning) open source?

Yes. DiffusionGemma 26B-A4B (Reasoning) is an open model released under the open source license.

When was DiffusionGemma 26B-A4B (Reasoning) released?

Google released DiffusionGemma 26B-A4B (Reasoning) on June 10, 2026.

How does DiffusionGemma 26B-A4B (Reasoning) compare to Claude Opus 5.5 (Reasoning)?

DiffusionGemma 26B-A4B (Reasoning) scores 19.4 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1.

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