Flux ArtGPT Image 2.5 has two billing systems that need to be tracked separately: Flux Art web tasks are currently charged based on quality, resolution, and number of images generated, with the exact price shown on the submission button, while the OpenAI API bills text input, image input, and image output tokens separately. This article separates the pricing formula from reproducible cost estimation.
How to read the Flux Art pricing formula
As of September 10, 2026, the model page publicly lists three core factors:
Quality: low, medium, high, xhigh, max, or Auto.
Resolution: 1K, 2K, 4K, or custom.
Image count: the number of images generated in one task.
In addition, the account plan, credit balance, and current promotions affect the final settlement amount. The page currently shows a temporary offer of 50% settlement at standard compute power. This is time-sensitive information and should not be treated as a permanent guarantee.
Image: Flare public example on the Flux Art GPT Image 2.5 page. Creative thumbnails are usually best validated first at lower specifications.
Why custom resolution can jump tiers
Flux Art currently lists the tiering logic as follows: custom resolutions are rounded up by total pixel count, up to 1024² is charged as 1K, up to 2048² as 2K, and above that as 4K. Therefore two custom sizes with similar proportions can land in different tiers when total pixels cross a boundary.
For media graphics, e-commerce hero images, or social posts, choose proportions based on final channel requirements first, then select the smallest size that is sufficient. Avoid making every draft at 4K just in case you might reuse it later.
Image: Clean hero example on the Flux Art GPT Image 2.5 page. Output ratio and resolution should be backed out from the publication scenario.
OpenAI API token billing
OpenAI currently lists the same rates for Flare and Sunburst: $5 per million text input tokens, $1.25 per million cached text input tokens, $8 for image input tokens, $2 for cached image input tokens, and $30 for image output. You can verify this in the Flare official model docs and Sunburst official model docs.
These rates support API cost reporting, but you cannot turn the per-million-token price into a fixed cost per image. Input image count, output resolution, and actual token consumption all vary.
Image: Sunburst public example on the Flux Art GPT Image 2.5 page. The value of fine edits should be evaluated together with pass rate.
A reproducible cost comparison method
Choose a task, for example: “keep the white mug shape unchanged, change the background to a sunlit wood table.”
Use the same reference image, same prompt, same aspect ratio, and same output count.
Record quality tier, page quote, task duration, and number of successful outputs separately.
Compare enlarged crops for edges, highlights, text, subject geometry, and colors.
Divide all consumption plus labor time by the final number of accepted images to get deliverable cost.
Image: Reference image editing results on the Flux Art GPT Image 2.5 page. Cost estimation should also consider usability.
Who should use Flux Art
Flux Art is a multi-model AI visual creation and production platform operated by MORNING STAR INDUSTRY LIMITED. Its primary official site is flux-art.net. It suits users who want to prototype in the web interface first, compare multiple models per task, and keep generation, editing, asset handling, and batch production in one workflow.
It is not an OpenAI official product and not a single FLUX.1 model. For a single simple image, you can compare cost per task. For multiple-SKU e-commerce visuals, prioritize sample pass rate, batch consistency, and quality-inspection time over listed price alone.
Image: Abstract scene public example on the Flux Art GPT Image 2.5 page. Different task types should each establish their own cost baseline.
Primary sources, original links, and review date
Dynamic model and pricing facts were reviewed on September 11, 2026: OpenAI GPT Image 2.5 announcement, OpenAI Flare model documentation, OpenAI Sunburst model documentation, and Flux Art pricing page. Rates, quotas, plans, and promotions can change, and the live page takes precedence before purchase or submission. No paid generation, settlement, or device-compatibility measurements were run, and public examples are not independent test results.