Phi-4 Reasoning Vision 15B vs ShieldGemma 2
Phi-4 Reasoning Vision 15B (2026) and ShieldGemma 2 (2024) are general-purpose language models from Microsoft Research and Google DeepMind. Phi-4 Reasoning Vision 15B ships a not-yet-sourced context window, while ShieldGemma 2 ships a not-yet-sourced 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. The goal is to make the tradeoff clear before deeper testing.
Phi-4 Reasoning Vision 15B is safer overall; choose ShieldGemma 2 when vision-heavy evaluation matters.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-03-12 | 2024-09-01 |
| Context window | — | — |
| Parameters | 15B | — |
| Architecture | - | decoder only |
| License | Microsoft Research | Proprietary |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Phi-4 Reasoning Vision 15B | ShieldGemma 2 |
|---|---|---|
| Input price | - | - |
| Output price | - | - |
| Providers | - |
Pricing not yet sourced for either model.
Capabilities
| Capability | Phi-4 Reasoning Vision 15B | ShieldGemma 2 |
|---|---|---|
| Vision | No | Yes |
| Multimodal | Yes | Yes |
| Reasoning | No | No |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | No | Yes |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: ShieldGemma 2, function calling: ShieldGemma 2, tool use: ShieldGemma 2, and structured outputs: ShieldGemma 2. Both models share multimodal input, 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: Phi-4 Reasoning Vision 15B has no token price sourced yet and ShieldGemma 2 has no token price sourced yet. Provider availability is 0 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Phi-4 Reasoning Vision 15B when provider fit are central to the workload. Choose ShieldGemma 2 when vision-heavy evaluation 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
Is Phi-4 Reasoning Vision 15B or ShieldGemma 2 open source?
Phi-4 Reasoning Vision 15B is listed under Microsoft Research. ShieldGemma 2 is listed under Proprietary. 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, Phi-4 Reasoning Vision 15B or ShieldGemma 2?
ShieldGemma 2 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. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, Phi-4 Reasoning Vision 15B or ShieldGemma 2?
Both Phi-4 Reasoning Vision 15B and ShieldGemma 2 expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for function calling, Phi-4 Reasoning Vision 15B or ShieldGemma 2?
ShieldGemma 2 has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for tool use, Phi-4 Reasoning Vision 15B or ShieldGemma 2?
ShieldGemma 2 has the clearer documented tool use signal in this comparison. If tool use is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Phi-4 Reasoning Vision 15B and ShieldGemma 2?
Phi-4 Reasoning Vision 15B is available on the tracked providers still being sourced. ShieldGemma 2 is available on GCP Vertex AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.