Model garden On request

NV Reason CXR 3B

This model runs as a dedicated deployment on large GPUs and isn't in the shared playground by default. Get in touch and we'll set it up for you.

This model is for research and development only.

nvidia/NV-Reason-CXR-3B On request
text+image->text · nvidia · EU-hosted
3.8B
Parameters
128K
Context window
16GB
Minimum VRAM
POST /api/v1/chat/completions On request

Specifications

Parameters 3.8B
Context window 128,000 tokens
Minimum VRAM 16 GB
Architecture Qwen2_5_VLForConditionalGeneration (vLLM)
License other
Modality text+image->text
Released October 2025
Publisher nvidia ↗

Pricing

€0.03
Input (per 1M tokens)
€0.08
Output (per 1M tokens)

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

Not available on the shared router. Pricing on request as a dedicated GPU deployment.

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": "nvidia/NV-Reason-CXR-3B",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Frequently asked questions

Can I run NV Reason CXR 3B in the EU?

Yes. HostYourAI runs NV Reason CXR 3B 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 NV Reason CXR 3B 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 NV Reason CXR 3B cost?

Via the shared EU router you pay €0.03 per million input tokens and €0.08 per million output tokens, with no fixed costs. For high volume or isolation you can also run NV Reason CXR 3B 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.

More models from NVIDIA

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NV Reason CXR 3B isn't available by default yet. Leave your details and we'll arrange a dedicated deployment.

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