Gemma 3 vs ShieldGemma 9B
Gemma 3 (2025) and ShieldGemma 9B (2024) are compact production models from Google DeepMind. Gemma 3 ships a not-yet-sourced context window, while ShieldGemma 9B ships a 8K-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing. The goal is to make the tradeoff clear before deeper testing.
Gemma 3 is safer overall; choose ShieldGemma 9B when provider fit matters.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-03-12 | 2024-07-01 |
| Context window | — | 8K |
| Parameters | — | 9B |
| Architecture | decoder only | decoder only |
| License | Open Source | 1 |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Gemma 3 | ShieldGemma 9B |
|---|---|---|
| Input price | $0.04/1M tokens | - |
| Output price | $0.08/1M tokens | - |
| Providers |
Capabilities
| Capability | Gemma 3 | ShieldGemma 9B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | Yes | No |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on structured outputs: Gemma 3. Both models share the core language-model surface, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
Pricing coverage is uneven: Gemma 3 has $0.04/1M input tokens and ShieldGemma 9B has no token price sourced yet. Provider availability is 3 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Gemma 3 when provider fit and broader provider choice are central to the workload. Choose ShieldGemma 9B when provider fit are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency. For teams standardizing a stack, that distinction is often the difference between a benchmark win and a reliable deployment.
FAQ
Is Gemma 3 or ShieldGemma 9B open source?
Gemma 3 is listed under Open Source. ShieldGemma 9B is listed under 1. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for structured outputs, Gemma 3 or ShieldGemma 9B?
Gemma 3 has the clearer documented structured outputs signal in this comparison. If structured outputs is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Gemma 3 and ShieldGemma 9B?
Gemma 3 is available on OpenRouter, Google AI Studio, and GCP Vertex AI. ShieldGemma 9B is available on NVIDIA NIM. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Gemma 3 over ShieldGemma 9B?
Gemma 3 is safer overall; choose ShieldGemma 9B when provider fit matters. If your workload also depends on provider fit, start with Gemma 3; if it depends on provider fit, run the same evaluation with ShieldGemma 9B.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.