Amazon Nova Reel publishes length as an increment
Nova Reel states duration as six second increments reaching two minutes, and states separately that anything past six seconds needs the v1:1 model ID. Length here is a multiple, so an ad either divides by six or gets rewritten. As of 2026-09-22.
| What the page states | The value | Where it sits |
|---|---|---|
| The grain | Six second increments | The model table |
| The ceiling | Up to two minutes | The same table row |
| The condition | amazon.nova-reel-v1:1 for anything longer than six seconds | A separate line in the prose |
Inclusion rule. The statements on this page that carry a length. A capability described only in a launch post is not counted, and neither is a figure inferred from the frame rate. Order. Grain, then ceiling, then the condition attached to the ceiling.
1A multiple behaves unlike a ceiling
Most rows in this column publish an outer edge and let anything shorter through. This one publishes a step. Six, twelve, eighteen: those are the lengths available, and a brief asking for eight seconds has no legal value to round to.
That reverses which side does the rewriting. Elsewhere the tool bends to the slot, trimmed in an edit afterwards. Here the slot has to be expressed in sixes before the request is made, and a bumper at five to six seconds is the one YouTube format the grain lands on exactly.
2Two minutes arrives inside one request
Two minutes is the largest figure in this column that belongs to a prompt-driven scene generator rather than to a performance driven by an audio track. A sixty second slot is one request of ten beats, not ten requests and nine joins for an editor to reconcile.
What is given up is placement of the cuts. The model decides where one beat ends and the next begins, so the seams exist but nobody in the edit chose them. For an advertisement with a fixed beat at the end, that is a real loss and it is not visible in the length figure.
3The model ID is part of the specification
The condition sits in prose rather than in the table, and it is easy to read the ceiling without it. A request made against the wrong model ID is capped at six seconds, which looks like a quota problem and is actually a specification the page did state.
This register keeps it in the same row as the ceiling for that reason. A length that only exists on one identifier is a length with a precondition, and the precondition belongs beside the number rather than three paragraphs away from it.
4Where this cell sits in the column
| Generator | Duration |
|---|---|
| Amazon Nova Reel | 6 s increments, up to two minutes |
| CogVideoX | 6 s, at 49 frames |
| Google Veo | 4, 6 or 8 s |
| Grok Imagine | 1 to 15 s |
| Hedra | 10 minutes |
| HeyGen | 30 minutes per scene |
| Kling AI | Not stated |
| LTX-Video | Frames, never seconds |
| MiniMax | 4 to 15 s |
| Pika | 5 s and 10 s, 20-25 s on Pikaframes |
| PixVerse | 1 to 15 s on version 6 |
| Runway | 5 to 15 s on Gen-4.5 |
| SceneMixer | Thirty seconds on the Wan tiers, fifteen on H3 |
| Vidu | Not stated |
| Wan 3.0 | 2 to 30 s |
Inclusion rule. Every generator with a row in this register, carrying whatever its own page states as a length. A page that states none keeps its row and says so. Order. Alphabetical by generator name.
- Video duration6 second increments, up to two minutesfrom the model table
- Which model ID reaches past one shotTo generate videos longer than six seconds, you must use amazon.nova-reel-v1:1 as the model ID
5Sources
Read from the Amazon Nova user guide, checked 2026-09-22. The column itself is described on duration, and the rule that keeps surfaces and generators apart is on method. Next along this column: CogVideoX, Google Veo.