Tencent · Image model

Hy Image 3.5 Preview

tencent/hy-image-v3.5-preview

Image

Released Oct 5, 2026

Hy Image 3.5 Preview is a unified image generation and editing model from Tencent. It handles text-to-image, image-to-image, and multi-turn editing through one endpoint, taking up to 20 reference images...

Specifications

Input: text, image
Output: image
Editing: yes, up to 20 reference images
Images per call: 1
Served by: Tencent Cloud

Request options

Validated against these values; anything else returns 400 with the allowed list.

resolution: 1K, 1.5K, 2K, 4K
aspect_ratio: 1:1, 1:2, 1:4, 2:1, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 9:16, 16:9
seed: boolean
size: boolean

Use it

POST /api/v1/images · /images/edits · MCP generate_image · edit_image · full reference

curl https://omnirail.org/api/v1/images \
  -H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
  -d '{"model":"tencent/hy-image-v3.5-preview","prompt":"a lighthouse at dawn, 35mm film","aspect_ratio":"1:1"}'