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minimax-h3/text-to-image

Commercial usePart of the Hailuo API family — browse all models →
⚡ Run with API

MiniMax H3 Image is an open-source image generation and editing model from MiniMax, part of the MiniMax H3 family. On ModelFold it generates images at 1K, 2K or 4K (about 16 megapixels) in ten aspect ratios. It also edits images using up to 16 reference images.

Model Type:

Pricing: 1K 3 credits / image, 2K 3 credits / image, 4K 7 credits / image.

Playground

Pre-filled from the model spec — run it as-is, or tweak any field first.

Ready
Prompt

Text prompt, up to 5000 characters. Chinese and English are both supported.

Aspect ratio

Aspect ratio of the output image. auto: the prompt rewriter picks a suitable ratio (falls back to 1:1 when prompt expansion is off).

Resolution

Output size tier: 1K (about 1 MP), 2K (about 4 MP, default), 4K (about 16 MP). Billed per image by this tier. Hidden and not sent when both Width and Height are set.

width

Optional custom output width in pixels (1–8192). Width and Height must be set together: filling one makes the other required. With both set, Aspect Ratio and Resolution are hidden and not sent (they cannot be combined with a custom size); the output is exactly Width × Height, billed by its total pixels (≤1.2 MP 1K, ≤4.5 MP 2K, otherwise 4K). Total pixels 655,360–20,000,000, width : height 1:3–3:1.

height

Optional custom output height in pixels (1–8192). Must be set together with Width: filling one makes the other required.

expand_prompt

Rewrite the prompt into a detailed English description before generating. Prompt expansion is on by default; we recommend keeping it on for better image quality.

output_format

Output image format.

Seed

Random seed, 0–2147483647. Leave empty for a random seed; the actual seed is returned with the result.

Balance: —Estimated reservation7 credits(estimated before generation; actual charge shown on completion)
Result
History

Sample output for this variant — press Run to generate your own.

Rate card
Text To Image
1K / 2K3 credits / image
4K7 credits / image
Image Edit
1K / 2K3 credits / image
4K7 credits / image

Image Edit：1K 3 credits / image, 2K 3 credits / image, 4K 7 credits / image; each reference image +0.6 credits (total rounded up).

Quick start
POST/v1/images/generations
curl https://modelfold.ai/v1/images/generations \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"minimax-h3/text-to-image","prompt":"..."}'