Nano Banana Pro (Gemini 3 Pro Image) vs ShieldGemma 9B
Nano Banana Pro (Gemini 3 Pro Image) (2026) and ShieldGemma 9B (2024) are frontier reasoning models from Google DeepMind. Nano Banana Pro (Gemini 3 Pro Image) ships a 66k-token context window, while ShieldGemma 9B ships a 8k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Nano Banana Pro (Gemini 3 Pro Image) fits 8x more tokens; pick it for long-context work and ShieldGemma 9B for tighter calls.
Decision scorecard
Local evidence first| Signal | Nano Banana Pro (Gemini 3 Pro Image) | ShieldGemma 9B |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | general production evaluation |
| Decision fit | Agents, Vision, and JSON / Tool use | Classification |
| Context window | 66k | 8k |
| Cheapest output | $120/1M tokens | - |
| Provider routes | 1 tracked | 1 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Nano Banana Pro (Gemini 3 Pro Image) has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Nano Banana Pro (Gemini 3 Pro Image) uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags Nano Banana Pro (Gemini 3 Pro Image) for Agents, Vision, and JSON / Tool use.
- Local decision data tags ShieldGemma 9B for Classification.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Nano Banana Pro (Gemini 3 Pro Image)
$31,600
Cheapest tracked route/tier: Google AI Studio
ShieldGemma 9B
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Nano Banana Pro (Gemini 3 Pro Image) and ShieldGemma 9B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
- No overlapping tracked provider route is sourced for ShieldGemma 9B and Nano Banana Pro (Gemini 3 Pro Image); plan for SDK, billing, or endpoint changes.
- Nano Banana Pro (Gemini 3 Pro Image) adds Vision, Multimodal, and Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-05-28 | 2024-07-01 |
| Context window | 66k | 8k |
| Parameters | — | 9B |
| Architecture | decoder only | decoder only |
| License | Proprietary | Gemma |
| Openness | Proprietary | Open weights |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | 2025-01 | - |
Pricing and availability
| Pricing attribute | Nano Banana Pro (Gemini 3 Pro Image) | ShieldGemma 9B |
|---|---|---|
| Input price | $2/1M tokens | - |
| Output price | $120/1M tokens | - |
| Providers |
Capabilities
| Capability | Nano Banana Pro (Gemini 3 Pro Image) | ShieldGemma 9B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | No |
| Function calling | No | No |
| Tool use | Yes | No |
| Structured outputs | Yes | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Nano Banana Pro (Gemini 3 Pro Image), multimodal input: Nano Banana Pro (Gemini 3 Pro Image), reasoning mode: Nano Banana Pro (Gemini 3 Pro Image), tool use: Nano Banana Pro (Gemini 3 Pro Image), and structured outputs: Nano Banana Pro (Gemini 3 Pro Image). 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: Nano Banana Pro (Gemini 3 Pro Image) has $2/1M input tokens and ShieldGemma 9B has no token price sourced yet. Provider availability is 1 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Nano Banana Pro (Gemini 3 Pro Image) when reasoning depth and larger context windows 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.
FAQ
Which has a larger context window, Nano Banana Pro (Gemini 3 Pro Image) or ShieldGemma 9B?
Nano Banana Pro (Gemini 3 Pro Image) supports 66k tokens, while ShieldGemma 9B supports 8k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Nano Banana Pro (Gemini 3 Pro Image) or ShieldGemma 9B open source?
Nano Banana Pro (Gemini 3 Pro Image) is listed under Proprietary. ShieldGemma 9B is listed under Gemma. 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 vision, Nano Banana Pro (Gemini 3 Pro Image) or ShieldGemma 9B?
Nano Banana Pro (Gemini 3 Pro Image) has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for multimodal input, Nano Banana Pro (Gemini 3 Pro Image) or ShieldGemma 9B?
Nano Banana Pro (Gemini 3 Pro Image) has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for reasoning mode, Nano Banana Pro (Gemini 3 Pro Image) or ShieldGemma 9B?
Nano Banana Pro (Gemini 3 Pro Image) has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Nano Banana Pro (Gemini 3 Pro Image) and ShieldGemma 9B?
Nano Banana Pro (Gemini 3 Pro Image) is available on Google AI Studio. ShieldGemma 9B is available on NVIDIA NIM. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-05. Data sourced from public model cards and provider documentation.