Gemini 3 Flash Preview vs Llama Guard 3 1B
Gemini 3 Flash Preview (2025) and Llama Guard 3 1B (2024) are general-purpose language models from Google DeepMind and AI at Meta. Gemini 3 Flash Preview ships a 1M-token context window, while Llama Guard 3 1B ships a not-yet-sourced context window. On pricing, Llama Guard 3 1B costs $0.1/1M input tokens versus $0.5/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Llama Guard 3 1B is ~400% cheaper at $0.1/1M; pay for Gemini 3 Flash Preview only for coding workflow support.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-12-17 | 2024-09-25 |
| Context window | 1M | — |
| Parameters | — | 1B |
| Architecture | decoder only | decoder only |
| License | Proprietary | Open Source |
| Knowledge cutoff | 2025-01 | - |
Pricing and availability
| Pricing attribute | Gemini 3 Flash Preview | Llama Guard 3 1B |
|---|---|---|
| Input price | $0.5/1M tokens | $0.1/1M tokens |
| Output price | $3/1M tokens | $0.1/1M tokens |
| Providers |
Capabilities
| Capability | Gemini 3 Flash Preview | Llama Guard 3 1B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | No | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | No |
| Code execution | Yes | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Gemini 3 Flash Preview, multimodal input: Gemini 3 Flash Preview, function calling: Gemini 3 Flash Preview, tool use: Gemini 3 Flash Preview, structured outputs: Gemini 3 Flash Preview, and code execution: Gemini 3 Flash Preview. 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, Gemini 3 Flash Preview lists $0.5/1M input and $3/1M output tokens, while Llama Guard 3 1B lists $0.1/1M input and $0.1/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Llama Guard 3 1B lower by about $1.15 per million blended tokens. Availability is 3 providers versus 1, so concentration risk also matters.
Choose Gemini 3 Flash Preview when coding workflow support and broader provider choice are central to the workload. Choose Llama Guard 3 1B when provider fit and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which is cheaper, Gemini 3 Flash Preview or Llama Guard 3 1B?
Llama Guard 3 1B is cheaper on tracked token pricing. Gemini 3 Flash Preview costs $0.5/1M input and $3/1M output tokens. Llama Guard 3 1B costs $0.1/1M input and $0.1/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Gemini 3 Flash Preview or Llama Guard 3 1B open source?
Gemini 3 Flash Preview is listed under Proprietary. Llama Guard 3 1B 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, Gemini 3 Flash Preview or Llama Guard 3 1B?
Gemini 3 Flash Preview 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, Gemini 3 Flash Preview or Llama Guard 3 1B?
Gemini 3 Flash Preview 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 function calling, Gemini 3 Flash Preview or Llama Guard 3 1B?
Gemini 3 Flash Preview 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.
Where can I run Gemini 3 Flash Preview and Llama Guard 3 1B?
Gemini 3 Flash Preview is available on GCP Vertex AI, OpenRouter, and Google AI Studio. Llama Guard 3 1B is available on Fireworks AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.