Pika H3 Flex Draft to Video: Native Resolution and 4K Upscaling
Understand H3 Flex draft eligibility, native versus upscaled video, credit differences and a practical workflow for finishing a take in 4K.

A good draft answers the creative question before you decide on final delivery size. Draft to Video is the finishing step in H3 Flex: choose a completed native-resolution take you already made, then request a larger output. The result should be evaluated as an upscale of that take, not as an entirely new scene.
What counts as an eligible draft?
In this service, the draft must belong to your account, have completed successfully and use native 480p or 768p resolution. Select it from your video library. An unrelated MP4 on your device, another user's task or a failed generation is not an eligible source.
The duration comes from the source video. You do not choose a new length during a draft upgrade. If you need a different action or a longer scene, return to the text or image workflow and make a new draft first.
Native size and larger outputs are different
Native resolution is the size at which the underlying video is generated. Pika H3 Flex provides native 480p and 768p; larger output sizes use upscaling. H3 Flex offers 1080p, 2K and 4K as draft-upgrade destinations.
A larger file can fit a delivery requirement, but it does not guarantee a better idea, correct anatomy or perfect texture. Review the source before upgrading. If an important object disappears or the camera takes the wrong direction, resolve that creative problem in a new draft instead of relying on output size to repair it.
A practical finishing sequence
Make the take readable
Use Text to Video for a written scene or Image to Video for an anchored composition. Keep the first test focused. Watch the movement, ending and sound together, then decide whether the scene is worth keeping.
Select the completed source
Open My Films while signed in. Choose an eligible completed draft and use its upgrade action, or select it in Draft to Video. Check the source length and the target resolution before submitting.
Inspect the final file
Watch the upscaled result rather than assuming the task status tells you everything about visual quality. Confirm that it is suitable for the destination where you intend to publish. Keep the original draft available for comparison.
How H3 Flex upgrade credits work
The studio calculates upgrade credits from the source duration and the difference between the target and native-resolution credit rates. These are H3 Flex retail rules, not a quotation of Pika API dollar pricing. The generator displays the charge before submission; current plans are on the pricing page.
Choosing a new resolution does not grant an unlimited number of attempts. Review the cost and use the completed task history to avoid confusing a new submission with a check on an existing job. Failed tasks return their generation credits through the service's failure handling.
Check the documented model workflow
Pika's Draft to Video documentation describes the upstream model route. H3 Flex is an independent service with its own eligibility controls and credit plans. For a wider introduction to all four workflows, read the model guide.