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Model garden Router · on request Dedicated · available

Qwen3 4B Thinking 2507

Runs as your own dedicated GPU deployment, ready to launch from the wizard. Data stays in Europe.

Over the past three months, we have continued to scale the thinking capability of Qwen3-4B, improving both the quality and depth of reasoning. We are pleased to introduce Qwen3-4B-Thinking-2507, featuring the following key enhancements:

Start for free ← All models
Qwen/Qwen3-4B-Thinking-2507 On request
text->text · Qwen · sovereign EU
Runs on EU infrastructure operated by European companies; US marketplace capacity is never part of this chain. Full chain
4B
Parameters
262K
Context window
16GB
Minimum VRAM
POST /api/v1/chat/completions On request

Specifications

Parameters 4B
Context window 262,144 tokens
Minimum VRAM 16 GB
Architecture Qwen3ForCausalLM (vLLM)
License apache-2.0
Modality text->text
Released August 2025
Publisher Qwen ↗

Pricing

Shared router · per token
On request
Not available on the shared router. Pricing on request as a dedicated GPU deployment.
Dedicated GPU · per hour
from €2,22 per hour
Your own vLLM instance on European cloud (16 GB VRAM), billed hourly.

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

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-Thinking-2507",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Frequently asked questions

Can I run Qwen3 4B Thinking 2507 in the EU?

Yes. HostYourAI runs Qwen3 4B Thinking 2507 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 Thinking 2507 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 Thinking 2507 cost?

Qwen3 4B Thinking 2507 is available on request: through the shared EU router after a quick chat, or as your own dedicated GPU deployment billed per hour. Tell us your use case and we will set it up for you.

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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Try Qwen3 4B Thinking 2507 for free

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