Llama Guard 3 8B vs Nemotron 3 Content Safety
Llama Guard 3 8B (2024) and Nemotron 3 Content Safety (2026) are compact production models from AI at Meta and NVIDIA AI. Llama Guard 3 8B ships a 8k-token context window, while Nemotron 3 Content Safety ships a 131k-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.
Nemotron 3 Content Safety fits 16x more tokens; pick it for long-context work and Llama Guard 3 8B for tighter calls.
Decision scorecard
Local evidence first| Signal | Llama Guard 3 8B | Nemotron 3 Content Safety |
|---|---|---|
| Best for | provider-routed production | multimodal apps |
| Decision fit | Classification and JSON / Tool use | Long context, Vision, and Classification |
| Context window | 8k | 131k |
| Cheapest output | $0.20/1M tokens | - |
| Provider routes | 5 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Llama Guard 3 8B has broader tracked provider coverage for fallback and procurement flexibility.
- Llama Guard 3 8B uniquely exposes Structured outputs in local model data.
- Local decision data tags Llama Guard 3 8B for Classification and JSON / Tool use.
- Nemotron 3 Content Safety has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Nemotron 3 Content Safety uniquely exposes Vision and Multimodal in local model data.
- Local decision data tags Nemotron 3 Content Safety for Long context, Vision, and Classification.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Llama Guard 3 8B
$210
Cheapest tracked route/tier: Fireworks AI
Nemotron 3 Content Safety
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 Llama Guard 3 8B and Nemotron 3 Content Safety; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Structured outputs before moving production traffic.
- Nemotron 3 Content Safety adds Vision and Multimodal in local capability data.
- No overlapping tracked provider route is sourced for Nemotron 3 Content Safety and Llama Guard 3 8B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision and Multimodal before moving production traffic.
- Llama Guard 3 8B adds Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-07-23 | 2026-03-20 |
| Context window | 8k | 131k |
| Parameters | 8B | 4B |
| Architecture | decoder only | decoder only |
| License | Open Source | Apache 2.0 |
| Knowledge cutoff | 2023-12 | - |
Pricing and availability
| Pricing attribute | Llama Guard 3 8B | Nemotron 3 Content Safety |
|---|---|---|
| Input price | $0.20/1M tokens | - |
| Output price | $0.20/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Llama Guard 3 8B | Nemotron 3 Content Safety |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | 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: Nemotron 3 Content Safety, multimodal input: Nemotron 3 Content Safety, and structured outputs: Llama Guard 3 8B. 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: Llama Guard 3 8B has $0.20/1M input tokens and Nemotron 3 Content Safety has no token price sourced yet. Provider availability is 5 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Llama Guard 3 8B when provider fit and broader provider choice are central to the workload. Choose Nemotron 3 Content Safety when long-context analysis and larger context windows 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 Guard 3 8B or Nemotron 3 Content Safety?
Nemotron 3 Content Safety supports 131k tokens, while Llama Guard 3 8B supports 8k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Llama Guard 3 8B or Nemotron 3 Content Safety open source?
Llama Guard 3 8B is listed under Open Source. Nemotron 3 Content Safety is listed under Apache 2.0. 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, Llama Guard 3 8B or Nemotron 3 Content Safety?
Nemotron 3 Content Safety 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, Llama Guard 3 8B or Nemotron 3 Content Safety?
Nemotron 3 Content Safety 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 structured outputs, Llama Guard 3 8B or Nemotron 3 Content Safety?
Llama Guard 3 8B 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 Llama Guard 3 8B and Nemotron 3 Content Safety?
Llama Guard 3 8B is available on Cloudflare Workers AI, Microsoft Foundry, OpenRouter, Fireworks AI, and Replicate API. Nemotron 3 Content Safety is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-16. Data sourced from public model cards and provider documentation.