Gemma 3 27B
Google Gemma 3 27B: a multimodal open-weights model with text and image input, 14T training tokens, SigLIP vision, 128K context, and 140+ languages.
Model Overview
Capabilities, design details, and architectural traits
Gemma 3 27B - Multimodal Open-Weights Model
Gemma 3 27B is a multimodal open-weights model in Google's Gemma 3 family, accepting text and image input and generating text output. It was trained on 14 trillion tokens and supports a 128K context window with multilingual coverage across over 140 languages.
| Trait | Detail |
|---|---|
| Training tokens | 14 trillion |
| SigLIP vision encoder | Shared frozen SigLIP encoder; processes images as 256 compact soft tokens via MultiModalProjector |
| Pan and Scan image handling | Adaptively crops non-square or high-resolution images into 896x896 tiles for improved document and text-in-image tasks |
| Context window | 128K tokens; achieved by scaling from 32K pre-training via RoPE rescaling with a base frequency of 1M on global attention layers |
Gemma 3 27B as the Foundation for MedGemma 27B
The Gemma 3 27B multimodal architecture serves as the base model for MedGemma 27B, Google's open medical AI model designed for health AI development. This makes the 27B size the specific Gemma 3 variant chosen for specialized downstream medical fine-tuning in Google's own research ecosystem.
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 | 4.9 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | 10.1 | - | - |
| 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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