FLUX 3 or Ideogram 4.5 for ad text: what is known, and a test

Higgsfield's changelog says different things about the two. FLUX 3 Image (2026-10-01) follows complex prompts, renders text more accurately, and does text-to-image and image-to-image up to native 4K. Ideogram 4.5 (2026-09-30) does reference edits and text replacement that preserves layout, at 1K or 2K (Higgsfield changelog, read 2026-10-02). There is no head-to-head result in that page, so any ranking would be invented.

The page tells you what each model is advertised to do, not which one wins on your ad. The honest route is a test with your own copy.

What does each page claim?

These are Higgsfield's statements, read 2026-10-02, and they describe its listing, not an independent test.

What does Sume list?

Sume's docs and OpenAPI schema list FLUX.2 Pro and Flex, Ideogram V3, Recraft V4, and ChatGPT Image 2.5, and not FLUX 3 or Ideogram 4.5. For ad text on what Sume lists, test those. The 12-headline test is a script for it.

What should the test measure?

Fix the template, run each model on the same twelve headlines, and score by eye: exact, one letter off, or wrong. For edits, run the same banner through a price change and check the dimensions and the untouched areas, as in the QA check. Decide with your counts. If a model you want is not listed yet, check GET /v1/images/models again next week; the Image API docs describe the catalog.