Gemma 3 12B
Gemma 3 12B by Google DeepMind is an open-weights multimodal model with a 128K-token context window, 140+ language support, and open availability.
Model Overview
Capabilities, design details, and architectural traits
Gemma 3 12B - Open-Weights Multimodal Model
Gemma 3 12B is a lightweight, open-weights model from Google DeepMind, built from the same research used to create Gemini. It handles both text and image input via a SigLIP vision encoder, producing text output across a range of tasks including question answering, summarization, and reasoning. Its defining design principle is high capability within tight resource constraints.
What Sets Gemma 3 12B Apart from Other Open Models
| Trait | Detail |
|---|---|
| 128K-token context window | Available at the 4B, 12B, and 27B sizes; the 1B is limited to 32K |
| Open weights with two variants | Released as both a pre-trained base and an instruction-tuned (-it) version |
| Multilingual scope | Trained with support for over 140 languages |
| SigLIP vision encoder | Images normalized to 896x896 resolution, encoded to 256 tokens per image |
| Distillation-based training | Trained using knowledge distillation, yielding the novel post-training recipe documented in the Gemma 3 Technical Report |
Gemini-Lineage in an Open, Deployable Form
Gemma 3 12B sits in a five-size family (1B, 4B, 12B, 27B). The 12B variant specifically maintains the full 128K context window shared with the larger 27B. The post-training recipe documented in the technical report targets improvements in math, chat, instruction-following, and multilingual tasks over Gemma 2.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
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| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | Anthropic | Anthropic | |
| Release Date | March 12, 2025 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | Aug 2024 | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 131K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | Free Best Input Pricing | $4 | $2 |
| Output Pricing | Free Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | textimage | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 3.8 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | 5.8 | - | - |
| Agentic Index | 0.1 | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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