Gemma 3 12B Base
A pretrained 12B multimodal Gemma 3 checkpoint with a 128,000-token context window.
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Why this model scores 50.6
Greater scale, vision and long context raise general capability, while base status limits autonomy. Open local deployment keeps misuse and control difficulty material.
News tied to Gemma 3 12B Base
The model score of 50.6 rates this model's risk profile. The overall Doom Index of 67.9 measures the complete temporally weighted evidence record. These values answer different questions.
Each article's current Doom Index contribution is divided equally among the exact models named on that article. This prevents multi-model evidence from being claimed in full on several model pages. Model risk scores use a bounded temporal offset around their technical profile, but never feed back into the overall index.
Google releases eight Gemma 3 open model checkpoints
Google released Gemma 3 base and instruction-tuned checkpoints at 1B, 4B, 12B and 27B sizes, with multimodal reasoning, long context and broad local and cloud distribution.
- Full item contribution
- +0.14
- Gemma 3 12B Base equal share
- +0.02
Model score history
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R4
Doom Score 50.6
Source-backed model availability audit using the model's existing primary or authoritative catalogue evidence. Exact-version evidence chronology replayed under temporal-monthly-pressure-v4.
12 Aug 2026 -
R3
Doom Score 50.6
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.
12 Aug 2026 -
R2
Doom Score 50.8
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R1
Doom Score 51.5
Initial exact profile for the separately released 12B base checkpoint.
12 Aug 2026