Gemini 2.5 Pro Preview 05-06 vs Llama Guard 4 12B
Gemini 2.5 Pro Preview 05-06 (2025) and Llama Guard 4 12B (2025) are general-purpose language models from Google DeepMind and AI at Meta. Gemini 2.5 Pro Preview 05-06 ships a 1M-token context window, while Llama Guard 4 12B ships a 164K-token context window. On pricing, Llama Guard 4 12B costs $0.18/1M input tokens versus $1.25/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Llama Guard 4 12B is ~594% cheaper at $0.18/1M; pay for Gemini 2.5 Pro Preview 05-06 only for long-context analysis.
Specs
| Released | 2025-05-06 | 2025-04-05 |
| Context window | 1M | 164K |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Unknown | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Gemini 2.5 Pro Preview 05-06 | Llama Guard 4 12B | |
|---|---|---|
| Input price | $1.25/1M tokens | $0.18/1M tokens |
| Output price | $10/1M tokens | $0.18/1M tokens |
| Providers |
Capabilities
| Gemini 2.5 Pro Preview 05-06 | Llama Guard 4 12B | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint is close: both models cover structured outputs. 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.
For cost, Gemini 2.5 Pro Preview 05-06 lists $1.25/1M input and $10/1M output tokens, while Llama Guard 4 12B lists $0.18/1M input and $0.18/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Llama Guard 4 12B lower by about $3.69 per million blended tokens. Availability is 1 providers versus 3, so concentration risk also matters.
Choose Gemini 2.5 Pro Preview 05-06 when long-context analysis and larger context windows are central to the workload. Choose Llama Guard 4 12B when provider fit, lower input-token cost, 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, Gemini 2.5 Pro Preview 05-06 or Llama Guard 4 12B?
Gemini 2.5 Pro Preview 05-06 supports 1M tokens, while Llama Guard 4 12B supports 164K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Gemini 2.5 Pro Preview 05-06 or Llama Guard 4 12B?
Llama Guard 4 12B is cheaper on tracked token pricing. Gemini 2.5 Pro Preview 05-06 costs $1.25/1M input and $10/1M output tokens. Llama Guard 4 12B costs $0.18/1M input and $0.18/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Gemini 2.5 Pro Preview 05-06 or Llama Guard 4 12B open source?
Gemini 2.5 Pro Preview 05-06 is listed under Unknown. Llama Guard 4 12B 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 structured outputs, Gemini 2.5 Pro Preview 05-06 or Llama Guard 4 12B?
Both Gemini 2.5 Pro Preview 05-06 and Llama Guard 4 12B expose structured outputs. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Gemini 2.5 Pro Preview 05-06 and Llama Guard 4 12B?
Gemini 2.5 Pro Preview 05-06 is available on OpenRouter. Llama Guard 4 12B is available on NVIDIA NIM, Replicate API, and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Gemini 2.5 Pro Preview 05-06 over Llama Guard 4 12B?
Llama Guard 4 12B is ~594% cheaper at $0.18/1M; pay for Gemini 2.5 Pro Preview 05-06 only for long-context analysis. If your workload also depends on long-context analysis, start with Gemini 2.5 Pro Preview 05-06; if it depends on provider fit, run the same evaluation with Llama Guard 4 12B.
Continue comparing
Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.