Llama Prompt Guard 2 22M vs Phi 4 Multimodal Instruct
Llama Prompt Guard 2 22M (2025) and Phi 4 Multimodal Instruct (2025) are compact production models from AI at Meta and Microsoft Research. Llama Prompt Guard 2 22M ships a 512-token context window, while Phi 4 Multimodal Instruct ships a 128K-token context window. On pricing, Llama Prompt Guard 2 22M costs $0.03/1M input tokens versus $0.9/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Llama Prompt Guard 2 22M is ~2900% cheaper at $0.03/1M; pay for Phi 4 Multimodal Instruct only for long-context analysis.
Decision scorecard
Local evidence first| Signal | Llama Prompt Guard 2 22M | Phi 4 Multimodal Instruct |
|---|---|---|
| Decision fit | Classification and JSON / Tool use | Long context and Vision |
| Context window | 512 | 128K |
| Cheapest output | $0.03/1M tokens | $0.9/1M tokens |
| Provider routes | 1 tracked | 3 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Llama Prompt Guard 2 22M has the lower cheapest tracked output price at $0.03/1M tokens.
- Llama Prompt Guard 2 22M uniquely exposes Structured outputs in local model data.
- Local decision data tags Llama Prompt Guard 2 22M for Classification and JSON / Tool use.
- Phi 4 Multimodal Instruct has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Phi 4 Multimodal Instruct has broader tracked provider coverage for fallback and procurement flexibility.
- Phi 4 Multimodal Instruct uniquely exposes Vision and Multimodal in local model data.
- Local decision data tags Phi 4 Multimodal Instruct for Long context and Vision.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Llama Prompt Guard 2 22M
$31.50
Cheapest tracked route: GroqCloud
Phi 4 Multimodal Instruct
$945
Cheapest tracked route: Fireworks AI
Estimated monthly gap: $914. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Llama Prompt Guard 2 22M and Phi 4 Multimodal Instruct; plan for SDK, billing, or endpoint changes.
- Phi 4 Multimodal Instruct is $0.87/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Structured outputs before moving production traffic.
- Phi 4 Multimodal Instruct adds Vision and Multimodal in local capability data.
- No overlapping tracked provider route is sourced for Phi 4 Multimodal Instruct and Llama Prompt Guard 2 22M; plan for SDK, billing, or endpoint changes.
- Llama Prompt Guard 2 22M is $0.87/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision and Multimodal before moving production traffic.
- Llama Prompt Guard 2 22M adds Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-04-29 | 2025-01-01 |
| Context window | 512 | 128K |
| Parameters | 22M | — |
| Architecture | decoder only | decoder only |
| License | Llama 3.1 Community | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Llama Prompt Guard 2 22M | Phi 4 Multimodal Instruct |
|---|---|---|
| Input price | $0.03/1M tokens | $0.9/1M tokens |
| Output price | $0.03/1M tokens | $0.9/1M tokens |
| Providers |
Capabilities
| Capability | Llama Prompt Guard 2 22M | Phi 4 Multimodal Instruct |
|---|---|---|
| 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 |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Phi 4 Multimodal Instruct, multimodal input: Phi 4 Multimodal Instruct, and structured outputs: Llama Prompt Guard 2 22M. 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.
For cost, Llama Prompt Guard 2 22M lists $0.03/1M input and $0.03/1M output tokens, while Phi 4 Multimodal Instruct lists $0.9/1M input and $0.9/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Llama Prompt Guard 2 22M lower by about $0.87 per million blended tokens. Availability is 1 providers versus 3, so concentration risk also matters.
Choose Llama Prompt Guard 2 22M when provider fit and lower input-token cost are central to the workload. Choose Phi 4 Multimodal Instruct 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.
FAQ
Which has a larger context window, Llama Prompt Guard 2 22M or Phi 4 Multimodal Instruct?
Phi 4 Multimodal Instruct supports 128K tokens, while Llama Prompt Guard 2 22M supports 512 tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Llama Prompt Guard 2 22M or Phi 4 Multimodal Instruct?
Llama Prompt Guard 2 22M is cheaper on tracked token pricing. Llama Prompt Guard 2 22M costs $0.03/1M input and $0.03/1M output tokens. Phi 4 Multimodal Instruct costs $0.9/1M input and $0.9/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Llama Prompt Guard 2 22M or Phi 4 Multimodal Instruct open source?
Llama Prompt Guard 2 22M is listed under Llama 3.1 Community. Phi 4 Multimodal Instruct 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.
Which is better for vision, Llama Prompt Guard 2 22M or Phi 4 Multimodal Instruct?
Phi 4 Multimodal Instruct 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 Prompt Guard 2 22M or Phi 4 Multimodal Instruct?
Phi 4 Multimodal Instruct 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.
Where can I run Llama Prompt Guard 2 22M and Phi 4 Multimodal Instruct?
Llama Prompt Guard 2 22M is available on GroqCloud. Phi 4 Multimodal Instruct is available on Fireworks AI, NVIDIA NIM, and Microsoft Foundry. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-16. Data sourced from public model cards and provider documentation.