Model garden Router · on request Dedicated · available

AREX 2

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

AREX-2 is a 27B-parameter long-horizon agent model from the Beijing Academy of Artificial Intelligence (BAAI). It learns to improve a solution over multiple test-time rounds: propose, measure, reflect, and revise.

BAAI/AREX-2 On request
text+image->text · BAAI · sovereign EU
Runs on EU infrastructure operated by European companies; US marketplace capacity is never part of this chain. Full chain
27B
Parameters
262K
Context window
80GB
Minimum VRAM
POST /api/v1/chat/completions On request

Specifications

Parameters 27B
Context window 262,144 tokens
Minimum VRAM 80 GB
Architecture Qwen3_5ForConditionalGeneration (vLLM)
License apache-2.0
Modality text+image->text
Released September 2026
Publisher BAAI ↗

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 €3,04 per hour
Your own vLLM instance on European cloud (80 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": "BAAI/AREX-2",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Frequently asked questions

Can I run AREX 2 in the EU?

Yes. HostYourAI runs AREX 2 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 AREX 2 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 AREX 2 cost?

AREX 2 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.

More models from BAAI

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