Flux Kontext Max: AI Image Generator & Editor Online
Bottom line
Black Forest Labs' premium Kontext tier — same 6 ratios and 1-image edits as Pro, tuned for typography, 10cr. Generate from text or edit an existing image with Flux Kontext Max in one place — VdoBloom shows the credit cost for either mode before you confirm.
Max is the top of Black Forest Labs' Kontext line, the same instruction-based editor as Kontext Pro — upload an image, describe the one change you want, and the rest of the frame stays put — pushed to a higher output tier. Black Forest Labs positions Max around stronger typography and prompt adherence specifically, which is the detail that matters when on-image text has to survive being read closely: packaging comps, poster mockups, signage edits.
Like Pro, it works both ways: pure text-to-image when there's nothing to edit yet, or upload-and-instruct when there is. The aspect ratio menu is identical to Pro's six options, from 21:9 ultrawide down to 9:16 vertical, output as jpeg or png, with a one-image cap per edit job.
On VdoBloom, Max costs 10 credits per run against Pro's 7, and users rate it 4.5 versus Pro's 4.3. Content filtering carries the same MODERATE badge as Pro. Black Forest Labs sells Max only through paid API access — it has no open-weight release.
What it costs on VdoBloom
Flux Kontext Max is a flat 10 credits per run — no resolution or ratio upcharge. That's exactly what a new account's 10 free signup credits cover in a single job, so it's worth spending your free credit on one Max run to see the typography handling before deciding whether Pro (7 credits) is good enough for routine work.
Kontext Max vs the rest of the Flux lineup
Max (10cr) sits above Kontext Pro (7cr) for single-image instruction edits with stronger typography, and to the side of Flux 2 Pro I2I (12cr, 1-8 images, 1K/2K, auto ratio) for multi-image jobs. If the deliverable is one hero image with text that has to read correctly, Max is the tier built for it; for a batch of related images, Flux 2 Pro I2I's multi-image input is the better fit regardless of tier.
Common problems and how to avoid them
Instruction-editing models in general — Kontext Max included — can under-apply a compound instruction or occasionally leave the image close to unchanged. That's a prompt-adherence characteristic of the model family, not something VdoBloom's pipeline adds or removes. Keeping each run to one clear, specific instruction and re-running rather than stacking asks is the most reliable fix. VdoBloom's side of the deal is showing the credit cost before you run and refunding automatically if the job fails outright.
What creators use Flux Kontext Max for
- Final-delivery edits where Kontext Pro's result needs one more step of fidelity before it ships.
- Poster, packaging, and comp work where in-image text has to read cleanly under close inspection.
- Single hero-image edits — one upload, one instruction — for a premium asset rather than a batch.
How to use Flux Kontext Max on VdoBloom
- 1Open the Text to Image tool and select Flux Kontext Max.
- 2Write your prompt (or upload an image to edit).
- 3Set aspect ratio, review the credit cost, and generate.
Frequently asked questions
How much does Flux Kontext Max cost on VdoBloom?
10 credits per run, generation or edit alike. The cost shows before you confirm, and a failed job is refunded automatically.
What do 10 free signup credits get me on Flux Kontext Max?
Exactly one run. New accounts start with 10 free credits, and a single Kontext Max job costs all 10 — worth trying it once before deciding whether to buy more.
Is Flux Kontext Max censored?
It carries VdoBloom's MODERATE badge — standard provider filtering, the same tier as Kontext Pro. It isn't the strict tier applied to Nano Banana or GPT Image, but clearly restricted content is still refused.
Is Flux Kontext Max open source?
No. Black Forest Labs offers Max only as commercial API access; the open-weight model in this family is the separate Kontext [dev] release, which isn't the model listed here.
Is Flux Kontext Max worth the extra 3 credits over Kontext Pro?
Both cover the same edit mechanics — one image, one instruction, six aspect ratios. Max's documented difference is stronger typography and prompt adherence, so if the job has text that needs to render correctly or you're seeing Pro drop part of an instruction, Max is the tier built for that; for routine object or color swaps, Pro at 7 credits is the cheaper default.
Flux Kontext Max vs Flux 2 Pro I2I — which for multi-image jobs?
Max edits one image per job across 6 fixed ratios for 10 credits. Flux 2 Pro I2I, also Black Forest Labs, takes 1-8 images with an auto ratio option and 1K/2K resolution for 12 credits. Choose Max for a single high-fidelity instruction edit, Flux 2 Pro I2I when the job needs several source images or a specific resolution.
Does Flux Kontext Max really render text better than Pro?
Black Forest Labs publicly positions Max around improved typography and instruction-following versus Pro — that's the documented distinction between the two tiers, rather than a resolution or aspect-ratio difference, since both output the same six ratios.
Should I edit or regenerate when using Flux Kontext Max?
The Kontext design favors editing over regenerating: if most of an image is already right, upload it and give one instruction rather than re-prompting from a blank canvas. That's what keeps the untouched parts of the frame — lighting, composition, unrelated objects — from shifting.
Why does Flux Kontext Max sometimes skip part of my instruction?
This is a general limitation of instruction-editing models, Max included: compound instructions ('change the color and move the object and fix the lighting') are more likely to be partially applied than a single, specific ask. Breaking a multi-part edit into sequential single-instruction runs is the practical workaround; VdoBloom shows each run's cost up front and refunds outright failures, but it can't retroactively correct a job that completed but missed part of the instruction.
What aspect ratios does Flux Kontext Max support?
The same six as Kontext Pro: 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16, output as jpeg or png — moving a project between the two tiers needs no reframing.