Llama Guard 2 8B vs Marin 8B Instruct
Llama Guard 2 8B (2024) and Marin 8B Instruct (2025) are compact production models from AI at Meta and Marin. Llama Guard 2 8B ships a 8k-token context window, while Marin 8B Instruct 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.
Marin 8B Instruct fits 16x more tokens; pick it for long-context work and Llama Guard 2 8B for tighter calls.
Decision scorecard
Local evidence first| Signal | Llama Guard 2 8B | Marin 8B Instruct |
|---|---|---|
| Best for | provider-routed production | general production evaluation |
| Decision fit | Classification | Long context |
| Context window | 8k | 128k |
| Cheapest output | $0.25/1M tokens | - |
| Provider routes | 3 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Llama Guard 2 8B has broader tracked provider coverage for fallback and route flexibility.
- Local decision data tags Llama Guard 2 8B for Classification.
- Marin 8B Instruct has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Local decision data tags Marin 8B Instruct for Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Llama Guard 2 8B
$103
Cheapest tracked route/tier: Replicate API
Marin 8B Instruct
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 2 8B and Marin 8B Instruct; plan for SDK, billing, or endpoint changes.
- No overlapping tracked provider route is sourced for Marin 8B Instruct and Llama Guard 2 8B; plan for SDK, billing, or endpoint changes.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-04-18 | 2025-09-01 |
| Context window | 8k | 128k |
| Parameters | 8B | 8B |
| Architecture | Decoder Only | Decoder Only |
| License | Llama 2 Community | Apache 2.0OSI-approved |
| Openness | Open weights | Open source |
| Weights | Available | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | 2023-03 | 2024-07 |
Pricing and availability
| Pricing attribute | Llama Guard 2 8B | Marin 8B Instruct |
|---|---|---|
| Input price | $0.05/1M tokens | - |
| Output price | $0.25/1M tokens | - |
| Providers |
Capabilities
| Capability | Llama Guard 2 8B | Marin 8B Instruct |
|---|---|---|
| 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.
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Last reviewed: 2026-09-18. Data sourced from public model cards and provider documentation.