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RunwayML
Aleph 2
RunwayML's video editing model. Edit one frame to update your whole video, make changes across multiple shots, and work with up to 30 seconds of video. Supports keyframe-guided editing for precise control over specific moments in the clip.
Updated September 3, 2026
Credits
110 / clip
Turnaround
~150s / 30s clip
Max clip
30s
Resolution
1080P
Aleph 2 sample output
1080P · up to 30s
RunwayML
Aleph 2
When to pick Aleph 2
Aleph 2 sits at the premium end of the catalog at 110 credits per generation; 21 models are priced below it. At ~150s / 30s clip it rewards patience — best used when the clip is a deliverable rather than a draft. Clips run up to 30s, up to 30 seconds. Output is silent by design — plan on adding audio in your editor, which is often the cheaper path when you are scoring properly anyway. Its catalog tags read video editing, keyframe control, up to 30s — the areas where it outperforms general-purpose picks. Reach for Aleph 2 when video editing matters most and you would rather not manage a separate RunwayML subscription to get it.
When to look elsewhere
Tight budget? Seedance 2.5 costs 95 credits against Aleph 2's 110, a saving of 15 credits on every clip. When you are iterating rather than finishing, Seedance 2.0 Mini returns a clip in ~20s / 5s clip versus ~150s / 30s clip — the faster loop usually wins the draft phase. Aleph 2 produces silent video — if the clip needs to ship with sound, LTX-2.5 Fast generates synchronized audio for 18 credits or less.
Aleph 2 specifications
- Vendor
- RunwayML
- Credits
- 110 credits / clip
- Turnaround
- ~150s / 30s clip
- Max resolution
- 1080P
- Clip length
- up to 30s (max 30s)
- Native audio
- No
- Inputs
- text, video
- Data policy
- Third-party
Aleph 2 FAQ
How much does Aleph 2 cost?
Aleph 2 costs 110 credits per generation on FlowAIVideo. 21 models in the catalog are cheaper and 0 are pricier. One credit balance covers every model, so you can spend it on Aleph 2 today and a different model tomorrow without a second subscription.
How long does Aleph 2 take to generate a clip?
Typical turnaround is ~150s / 30s clip. 21 models in the catalog are faster. Latency scales with clip length, so a maximum-length render takes longer than a short one.
What resolution and clip length does Aleph 2 support?
Aleph 2 outputs up to 1080P, with 720P, 1080P available. Clips run up to 30s, with a maximum single-clip length of 30 seconds. The longest single generation in the catalog is 30 seconds on Aleph 2.
Does Aleph 2 generate audio?
No — Aleph 2 produces silent video. If you need generated sound, LTX-2.5 Fast, Seedance 2.5, FLUX 3 Video all produce synchronized audio natively. Otherwise add your own audio in the editor, which is usually the better route when you are scoring the piece properly.
What inputs does Aleph 2 accept?
Aleph 2 accepts text, video inputs. Its supported capabilities are video-editing, keyframe-guided, multi-shot. It is a text-first model — for reference-driven work, look at Seedance 2.0 or Seedance 2.5.
Can I compare Aleph 2 with other models?
Yes — send one prompt to Aleph 2 and any other model in the catalog at the same time and compare the clips side by side. Fix the prompt and duration and judge prompt adherence before aesthetics; a clip that looks good but shows the wrong thing is a failure.