Topaz LabsImage modelActive

Image HDR

Summary

Image HDR converts SDR photos to JPEG HDR with an automatically generated gain map. Topaz lists ISO 21496-1 support and up to 256 megapixels for input and output. Topaz listed it as available in an API announcement published on November 9, 2026; an earlier exact start date is not established.

The API model ID is ImageHDR. It charges one Topaz credit for each 4-megapixel block or part thereof in the image output. The reviewed official sources do not state a USD price per credit, downloadable weights, or a separate model license.

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All specifications

Architecture

Model class: Model for converting SDR images to HDR images; Source: Model class

Input and output

Input: SDR image; Source: Input
Output: Image as JPEG HDR with an embedded gain map; Source: Output
Capabilities: Automatically creates a gain map that expands an SDR photo's dynamic range without changing its original image content. The HDR result is visible on HDR-capable displays.; Source: Capabilities

Watermarking and provenance

AI watermarking refers to invisible signals embedded in the output. Visible marks and provenance metadata are listed separately. Unknown means there is insufficient evidence for that particular field.

AI watermarking: Unknown; no source
Watermarking technique: Not known; no source

Licence and access

Access: Topaz Image API; the documented endpoint requires an API key.; Source: Access
Availability: Topaz lists the model as available in its API announcement published on November 9, 2026. An earlier first-availability date is not established.; Source: Availability
Shutdown: None announced; no source

API

API model ID: ImageHDR; Source: API model ID

Further details

HDR format: JPEG HDR with an ISO 21496-1 gain map; Topaz lists compatibility with Google Ultra HDR and Apple Adaptive HDR.; Source: HDR format
Resolution limit: Up to 256 megapixels for input and output; Source: Resolution limit
Weights and license: The reviewed official API information does not list downloadable weights or a separate model license.; Source: Weights and license

Prices

API billing: 1 Topaz credit for each 4-megapixel block or part thereof in the image output. The model documentation does not state a USD price per credit.Source

Sources and data date

Type	Evidence and data date
Additional source	Topaz Labs API release announcement (retrieved November 13, 2026) · Topaz Labs API release announcement · Editorial description reviewed November 13, 2026
Additional source	Topaz Labs Image HDR API model documentation (retrieved November 13, 2026) · Topaz Labs Image HDR API model documentation · Editorial description reviewed November 13, 2026