When most ideas are discarded, the useful question is what happens after a draft is approved. FLUX 3 Video documents a Draft mode and a path to enhance a selected draft. H3 on this site offers lower-resolution generations, but a later 2K request is a new generation; it is not a guaranteed enhancement of the earlier file.
This comparison focuses on that production difference, ordered keyframes, and continuation. It uses Black Forest Labs' current documentation and the actual H3 controls on this site. We have not published a matched H3–FLUX benchmark, so there is no basis for ranking motion or visual detail.
Draft, Keyframe, and Output Options
Scroll horizontally to view all table columns.
| Decision | MiniMax H3 on this site | FLUX 3 Video |
|---|---|---|
| Exploration | Separate 768p generations | HD Draft mode |
| Approved draft | Another request at 2K | Documented Draft Enhance path |
| Maximum clip | 15 seconds | Up to 20 seconds |
| Output resolutions | 768p or 2K | HD, FHD, QHD/2K, and UHD/4K |
| Frame guidance | Opening and ending frames | Multiple ordered keyframes |
| Continuation | No dedicated continuation control here | Documented continuation from an existing clip |
Black Forest Labs lists resolutions through UHD/4K. These categories are based on total pixels per frame, so check the dimensions for your chosen aspect ratio.
These are workflow options. They do not tell you whether a particular object's texture, a hand gesture, or a line of dialogue will survive an enhancement or continuation. Approval should include those details.
Understand What Happens to an Approved Draft
A useful draft lets a team approve camera direction and timing before paying for final output. If the final stage creates a different take, the approval has to happen again. This is why an enhancement path and a new high-resolution generation should be budgeted separately.
BFL documents an HD preview that can be enhanced after selection, with Draft Enhance priced separately. Check which resolutions Draft Enhance supports; do not assume every listed resolution is available through the same path.
For H3 on this site, starting at 768p can still be a practical way to explore an idea. Keep the approved prompt and sources, then review the later 2K result as a new take. The composition, movement, or small details may differ even if the instructions are unchanged.
Set an approval checklist before exploration: the camera ends in the right place, the action occurs at the right moment, and the subject remains recognizable. A technically successful generation that misses one of those conditions is still a rejected draft.
Ordered Keyframes vs Appearance References
A keyframe defines how the scene should look at a specific point in the video. An appearance reference says what something should look like. Those are different instructions. Uploading several reference images does not necessarily create a sequence that visits them in order.
FLUX's published multi-keyframe control is relevant when a storyboard has intermediate compositions that matter. H3's start/end controls here define the boundaries. Its image-reference collection can guide subjects and style, but the interface does not provide a timed sequence of intermediate keyframes.
Consider a package that opens, reveals the product, and ends beside its lid. If the intermediate arrangement is mandatory, ask whether the workflow can anchor it explicitly. If only the opening and ending matter, two frame controls may be enough and a larger storyboard upload adds little.
- Use keyframes for required compositions in a sequence.
- Use appearance references for the subject's identity, material, or design.
- Label the role of each image in the brief.
- Review the transitions between required frames, not only the frames themselves.
Check the Transition into a Video Extension
A continuation needs to carry motion beyond the original ending. The hard part is often the transition: the camera speed, subject direction, lighting, and audio should not abruptly reset. View the original and continuation as one sequence when reviewing it.
Continue the bicycle's forward movement through the same street. Keep the camera distance and direction unchanged. The rider passes the blue doorway, then slows to a stop. Preserve the overcast lighting and street ambience.
Use this sample prompt to evaluate a continuation; it is not a test result. Retain the original file and note the last-frame composition before requesting a continuation. Check whether the rider, bicycle, or surroundings change at the boundary.
The H3 tool on this site does not include a dedicated video continuation feature. A new shot guided by a frame is a separate generation and may need editing where the clips meet. That can be acceptable for a planned cut, but it should not be described as the same operation as continuing the source clip.
Calculate Draft-to-Final Cost
If you plan to try many drafts, add their costs to the cost of the final render. Compare that total with a series of H3 generations and the final approved 2K take. Use the same approval requirement and output duration so the result reflects the job you intend to deliver.
BFL's pricing distinguishes Draft, output resolution, and video-to-video work. This site uses H3 credit estimates. A cheap preview rate should not be compared directly with the price of a delivered final clip.
Record how many drafts were actually useful. If ten previews produce one approved idea, the nine rejected previews are part of the project cost. If the final output changes an approved detail, include the additional review or replacement work too. Compare the total cost of an approved video, rather than assuming either service is always cheaper.
FLUX 3 Video Production Questions
Is a 768p H3 generation equivalent to FLUX Draft mode?
No. It is a separate video generation at a lower resolution. This H3 workspace has no Draft Enhance operation that turns that approved file into a final render.
Does FLUX 3 Video stop at FHD?
No. BFL currently lists HD through UHD/4K resolution options. Draft mode is HD-only, and the enhancement path has its own documented output and billing constraints.
Does this H3 tool support intermediate keyframes?
The current interface supports opening and ending frames. Image references can guide appearance, but there is no timed intermediate-keyframe control in this workspace.
Which costs less for ten drafts and one final clip?
Calculate the actual draft charges, final output, references, and any repeats. H3's per-request credit estimate and BFL's Draft/final rates measure different stages, so neither headline rate settles the total.
Sources and verification
- MiniMax: H3 model announcement and generation architecture
- Black Forest Labs: FLUX 3 Video resolution options, keyframes, and pricing
- BFL Help: Draft mode, enhancement, and continuation
Specifications, prices, and availability can change. Check the linked first-party documentation before making production or purchasing decisions.