Nano Banana Pro (Gemini 3 Pro Image Preview) vs Llama Guard 3 1B
Nano Banana Pro (Gemini 3 Pro Image Preview) (2025) and Llama Guard 3 1B (2024) are compact production models from Google DeepMind and AI at Meta. Nano Banana Pro (Gemini 3 Pro Image Preview) ships a 66k-token context window, while Llama Guard 3 1B ships a 128k-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.
Llama Guard 3 1B is ~1900% cheaper at $0.10/1M; pay for Nano Banana Pro (Gemini 3 Pro Image Preview) only for provider fit.
Decision scorecard
Local evidence first| Signal | Nano Banana Pro (Gemini 3 Pro Image Preview) | Llama Guard 3 1B |
|---|---|---|
| Best for | provider-routed production | general production evaluation |
| Decision fit | General | Long context and Classification |
| Context window | 66k | 128k |
| Cheapest output | $120/1M tokens | $0.10/1M tokens |
| Provider routes | 3 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Nano Banana Pro (Gemini 3 Pro Image Preview) has broader tracked provider coverage for fallback and route flexibility.
- Llama Guard 3 1B has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Llama Guard 3 1B has the lower cheapest tracked output price at $0.10/1M tokens.
- Local decision data tags Llama Guard 3 1B for Long context and 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 Preview)
$31,600
Cheapest tracked route/tier: Google AI Studio
Llama Guard 3 1B
$105
Cheapest tracked route/tier: Fireworks AI
Estimated monthly gap: $31,495. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Nano Banana Pro (Gemini 3 Pro Image Preview) and Llama Guard 3 1B; plan for SDK, billing, or endpoint changes.
- Llama Guard 3 1B is $120/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- No overlapping tracked provider route is sourced for Llama Guard 3 1B and Nano Banana Pro (Gemini 3 Pro Image Preview); plan for SDK, billing, or endpoint changes.
- Nano Banana Pro (Gemini 3 Pro Image Preview) is $120/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-09-01 | 2024-09-25 |
| Context window | 66k | 128k |
| Parameters | — | 1B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Llama 2 Community |
| Openness | Proprietary | Open weights |
| Weights | Not released | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | - | 2023-12 |
Pricing and availability
| Pricing attribute | Nano Banana Pro (Gemini 3 Pro Image Preview) | Llama Guard 3 1B |
|---|---|---|
| Input price | $2/1M tokens | $0.10/1M tokens |
| Output price | $120/1M tokens | $0.10/1M tokens |
| Providers |
Capabilities
| Capability | Nano Banana Pro (Gemini 3 Pro Image Preview) | Llama Guard 3 1B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| JSON / Tool use | No | No |
| Structured outputs | No | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Continue comparing
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Last reviewed: 2026-07-09. Data sourced from public model cards and provider documentation.