Llama 3.1 Nemotron Nano 8B v1 vs Llama Guard 2 8B
Llama 3.1 Nemotron Nano 8B v1 (2025) and Llama Guard 2 8B (2024) are compact production models from NVIDIA AI and AI at Meta. Llama 3.1 Nemotron Nano 8B v1 ships a 4K-token context window, while Llama Guard 2 8B 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.
Llama 3.1 Nemotron Nano 8B v1 is safer overall; choose Llama Guard 2 8B when long-context analysis matters.
Decision scorecard
Local evidence first| Signal | Llama 3.1 Nemotron Nano 8B v1 | Llama Guard 2 8B |
|---|---|---|
| Decision fit | General | Classification |
| Context window | 4K | 8K |
| Cheapest output | - | $0.25/1M tokens |
| Provider routes | 1 tracked | 3 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Use Llama 3.1 Nemotron Nano 8B v1 when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
- Llama Guard 2 8B has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Llama Guard 2 8B has broader tracked provider coverage for fallback and procurement flexibility.
- Local decision data tags Llama Guard 2 8B for Classification.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Llama 3.1 Nemotron Nano 8B v1
Unavailable
No complete token price in local provider data
Llama Guard 2 8B
$103
Cheapest tracked route: Replicate API
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Llama 3.1 Nemotron Nano 8B v1 and Llama Guard 2 8B; plan for SDK, billing, or endpoint changes.
- No overlapping tracked provider route is sourced for Llama Guard 2 8B and Llama 3.1 Nemotron Nano 8B v1; plan for SDK, billing, or endpoint changes.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-03-01 | 2024-04-18 |
| Context window | 4K | 8K |
| Parameters | 8B | 8B |
| Architecture | decoder only | decoder only |
| License | 1 | Open Source |
| Knowledge cutoff | - | 2023-03 |
Pricing and availability
| Pricing attribute | Llama 3.1 Nemotron Nano 8B v1 | Llama Guard 2 8B |
|---|---|---|
| Input price | - | $0.05/1M tokens |
| Output price | - | $0.25/1M tokens |
| Providers |
Capabilities
| Capability | Llama 3.1 Nemotron Nano 8B v1 | Llama Guard 2 8B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | No | No |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint is close: both models cover the core production surface. That makes context budget, benchmark fit, and provider maturity more important than a simple checklist. If your application depends on one integration detail, verify it against the provider route you plan to use, not just the base model listing.
Pricing coverage is uneven: Llama 3.1 Nemotron Nano 8B v1 has no token price sourced yet and Llama Guard 2 8B has $0.05/1M input tokens. Provider availability is 1 tracked routes versus 3. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Llama 3.1 Nemotron Nano 8B v1 when provider fit are central to the workload. Choose Llama Guard 2 8B when long-context analysis, larger context windows, and broader provider choice 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.
FAQ
Which has a larger context window, Llama 3.1 Nemotron Nano 8B v1 or Llama Guard 2 8B?
Llama Guard 2 8B supports 8K tokens, while Llama 3.1 Nemotron Nano 8B v1 supports 4K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Llama 3.1 Nemotron Nano 8B v1 or Llama Guard 2 8B open source?
Llama 3.1 Nemotron Nano 8B v1 is listed under 1. Llama Guard 2 8B is listed under Open Source. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Where can I run Llama 3.1 Nemotron Nano 8B v1 and Llama Guard 2 8B?
Llama 3.1 Nemotron Nano 8B v1 is available on NVIDIA NIM. Llama Guard 2 8B is available on Fireworks AI, OctoAI API (Deprecated), and Replicate API. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Llama 3.1 Nemotron Nano 8B v1 over Llama Guard 2 8B?
Llama 3.1 Nemotron Nano 8B v1 is safer overall; choose Llama Guard 2 8B when long-context analysis matters. If your workload also depends on provider fit, start with Llama 3.1 Nemotron Nano 8B v1; if it depends on long-context analysis, run the same evaluation with Llama Guard 2 8B.
Continue comparing
Last reviewed: 2026-05-02. Data sourced from public model cards and provider documentation.