Model garden Router · on request Dedicated · available

ImageReward

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

ImageReward: Learning and Evaluating Human Preferences for Text-to-Image Generation

zai-org/ImageReward On request
text->image · zai-org · sovereign EU
Runs on EU infrastructure operated by European companies; US marketplace capacity is never part of this chain. Full chain
Parameters
Context window
24GB
Minimum VRAM
POST /api/v1/images/generations On request

Specifications

Minimum VRAM 24 GB
License apache-2.0
Modality text->image
Released April 2023
Publisher zai-org ↗

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 €1,95 per hour
Your own vLLM instance on European cloud (24 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/images/generations \
  -H "Authorization: Bearer hyai-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "zai-org/ImageReward",
    "prompt": "A lighthouse at dawn"
  }'

Frequently asked questions

Can I run ImageReward in the EU?

Yes. HostYourAI runs ImageReward 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 ImageReward 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 ImageReward cost?

ImageReward needs several GPUs at once, so it runs as a dedicated deployment billed per GPU-hour rather than per token. Tell us your volume and we will work it out with 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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