Shotcraft
Video generation

Runway Gen-4 Aleph

First-generation Aleph video-to-video editing model, which introduced prompt-driven in-context editing of existing footage at Runway.

A video generation model by Runway · read 2026-08-14 · sourcing medium

Weights
Not released
API
No
Commercial use
Not established

Discontinued on 2026-07-30; Runway directs users to Aleph 2.0.

Discontinued

Discontinued 2026-07-30 per Runway's own changelog; plain 'gen4' no longer appears in Runway's model registry. Aleph 2.0 is the successor.

Effective: 2026-07-30

Commercial use — Not established

The research notes for this model record other terms but do not state a commercial-use position, and no licence page was retrieved, so it is not established here. Check the vendor's own terms.

The licence notes recorded during research were read for a commercial-use position and did not state one. Read the licence before you rely on any of this. Nothing on this page is legal advice, and this site does not tell you a model is cleared for commercial use.

Specification

Vendor figures, read 2026-08-14Read from Runway's own documentation on 2026-08-14. Vendors change these between model versions without announcing it, so check theirs before you commit a shot to a number. Sourcing for this entry is mixed. Some fields came from pages we retrieved, others could not be confirmed and are left blank. Check the vendor's current documentation

What it takes in
video, text
What it makes
video
Maximum duration
not established
Maximum resolution
not established
Aspect ratios
not established
Controls
inpainting
Weights
Not released
API
No
Pricing
not established
Released or updated
2026-07-30
Prompt limit
1,000 charactersVendor figure, checked 2026-08-16Collected from the vendor's own documentation on 16 August 2026. Vendors change these between model versions without announcing it, so check the vendor's current API reference before you rely on it. Check the vendor's documentation

Maximum duration, maximum resolution, supported aspect ratios and pricing are not established here. That means no page we could retrieve stated them, not that the model lacks them.

Strengths

  • Pioneered prompt-based in-context video editing at Runway

Weaknesses

  • Discontinued 2026-07-30 and no longer available
  • Superseded by Aleph 2.0

Where the sources disagree

Recorded rather than resolved. Picking the tidier number would hide the fact that the vendor's own pages do not agree.

MCP servers that front Runway

Servers in the media MCP directory whose own description or homepage names this vendor. Absence of a server here is not evidence that none exists: most publish no tool list at all.

9 further servers name Runway with lower confidence and are not listed, because a server naming a vendor may be using it for text rather than media.

See it from the vendor

Shotcraft hosts no sample output. Judging a model means watching its own showreel with your own eyes, and a clip re-hosted here would be a clip we chose.

Nearby in the directory

Runway Act-Two

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Runway Aleph 2.0

In-context video editing model. It takes an existing video plus a text instruction and optional keyframe images, and re-renders the footage to add, re

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Runway Gen-4.5

Runway's current flagship generation model, producing video from text alone or from a starting image. Announced 2025-12-01 for the web app and added t

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Sources

Read on 2026-08-14. A source that has changed since then will not be reflected here until the next pass.