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Qwen3 4B Base

Instantly via the EU router or as a dedicated GPU deployment. Data stays in Europe.

Qwen3 is the latest generation of large language models in Qwen series, offering a comprehensive suite of dense and mixture-of-experts (MoE) models. Building upon extensive advancements in training data, model architecture, and optimization techniques, Qwen3 delivers the followin...

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Qwen/Qwen3-4B-Base vLLM ready
text->text · Qwen · EU-hosted
4B
Parameters
33K
Context window
10GB
Minimum VRAM
POST /api/v1/chat/completions200 OK

Specifications

Parameters 4B
Context window 32,768 tokens
Minimum VRAM 10 GB
Architecture Qwen3ForCausalLM (vLLM)
License apache-2.0
Modality text->text
Released April 2025
Publisher Qwen ↗

Pricing

€0.05
Input (per 1M tokens)
€0.10
Output (per 1M tokens)

Shared EU router, pay-per-token, scale-to-zero. Dedicated GPU deployments are billed hourly — see pricing.

✓ Verified working on 24-06-2026 — responded in 276 ms on our EU infrastructure.

Call it now

Drop-in replacement for OpenAI: change only the base URL and API key. The Anthropic format (/v1/messages) is supported too.

curl https://hostyourai.com/api/v1/chat/completions \
  -H "Authorization: Bearer hyai-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "Qwen/Qwen3-4B-Base",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Frequently asked questions

Can I run Qwen3 4B Base in the EU?

Yes. HostYourAI runs Qwen3 4B Base on GPUs in European datacenters via vLLM. Prompts and outputs never leave the EU and there is no US cloud provider in the chain.

Is hosting Qwen3 4B Base GDPR-compliant?

Yes. All processing happens inside the EU, a Data Processing Agreement (DPA) is available and the subprocessor list is public. Open-source weights also mean: no training on your data.

How much does Qwen3 4B Base cost?

Via the shared EU router you pay €0.05 per million input tokens and €0.10 per million output tokens, with no fixed costs. For high volume or isolation you can also run Qwen3 4B Base as a dedicated hourly GPU instance.

Is the API OpenAI-compatible?

Yes. You use the standard OpenAI SDKs with a custom base URL (https://hostyourai.com/api/v1). The Anthropic Messages API is supported as a drop-in as well.

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