gpuos

Vision · Pro plan

Run Gemma 3 12B on your own GPU

Gemma 3 12B is a vision catalog model (12B dense) managed with Ollama. Catalog memory is estimated at 11.5 GB with Q4_K_M for a short context (4–8K tokens). Validate output quality and memory use with your workload on your hardware.

Deploy the catalog Ollama tag on your machine and verify the pulled model's quantization. Once deployed, gpuos serves it as gemma-3-12b through the hosted gpuos gateway, with API keys, optional token quotas and usage metering. Request and response payloads pass through that gateway.

Parameters
12B dense
Quantization
Q4_K_M
Est. VRAM (4–8K ctx)
≈ 11.5 GB
Catalog context
128K tokens
License
Gemma Terms of Use
Engine
Ollama
Ollama tag
gemma3:12b
API
/v1/chat/completions

Gemma's terms add use restrictions. Review them before commercial use.

Compare GPU memory for Gemma 3 12B

Catalog estimate at Q4_K_M, not a measured benchmark. Chat estimates assume a short context; embedding memory depends on input and batch size. The comparison includes a 5% screening margin; it does not establish runtime performance. More in how much VRAM an LLM needs.

Check this estimate against your GPU with the VRAM calculator

Call Gemma 3 12B with the OpenAI SDK

Use the supported chat completions endpoint with your gpuos base URL, API key and deployed model id. Validate any model-specific features your app needs. Setup for LangChain, Continue, Open WebUI and more is in integrations.

Python
from openai import OpenAI

client = OpenAI(base_url="https://gpuos.si/v1", api_key="gpuos_key_…")
stream = client.chat.completions.create(
    model="gemma-3-12b",
    messages=[{"role": "user", "content": "Summarize our refund policy."}],
    stream=True,
)
for chunk in stream:
    print(chunk.choices[0].delta.content or "", end="")
Node.js
import OpenAI from "openai"

const client = new OpenAI({ baseURL: "https://gpuos.si/v1", apiKey: process.env.GPUOS_API_KEY })
const reply = await client.chat.completions.create({
  model: "gemma-3-12b",
  messages: [{ role: "user", content: "Summarize our refund policy." }],
})
console.log(reply.choices[0].message.content)
curl
curl https://gpuos.si/v1/chat/completions \
  -H "Authorization: Bearer $GPUOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "gemma-3-12b", "messages": [{"role": "user", "content": "Hello"}]}'

Questions

How much VRAM does Gemma 3 12B need?
The catalog estimate is 11.5 GB at Q4_K_M for a short context (4–8K tokens). The RTX 4070 Ti Super 16 GB clears this estimate with screening headroom in the comparison list. This is a planning estimate, not a tested hardware requirement. Validate context length, batch size and concurrent requests on your node.
Can I use Gemma 3 12B commercially?
Gemma 3 12B is released under the Gemma Terms of Use. Gemma's terms add use restrictions. Review them before commercial use.
Is Gemma 3 12B compatible with the OpenAI API?
Through gpuos, Gemma 3 12B uses the supported /v1/chat/completions endpoint with the model id "gemma-3-12b". Configure your OpenAI-compatible client with the gpuos base URL and API key. Check model-specific features and any other API operations your app needs before switching.
Which gpuos plan includes Gemma 3 12B?
Gemma 3 12B is part of the full catalog on the Pro plan, $29 per GPU per month.

Related models

Plan your Gemma 3 12B deployment with gpuOS

Create a free workspace and follow the quickstart to connect a node. Start with a Community model, or upgrade inside your workspace for the full catalog.

Start freeRead the quickstart