Runway Gen-4.5
The quality tier of the Runway line at 12 credits per second, roughly two and a half times Turbo. Worth it only where the fidelity gain is visible in the final cut — Runway's real advantage is the surrounding editorial toolset, including the Aleph video-to-video editing model, rather than the generator alone.
Pricing checked against provider documentation on . How we verify
gen4.5 Price
$0.12
/ video sec
Context
—
not token-based
Max output
—
varies
Pricing caveat: Billed as 12 credits per second at $0.01 per credit. No native audio on the Gen-4 family.
Where Runway Gen-4.5 fits
- Final-quality client deliverables
- Video-to-video editing workflows
- Complex camera and motion direction
- Work needing an editing suite around it
Specifications
- API model ID
- gen4.5
- Provider
- Runway
- Model family
- Runway Gen-4
- Released
- March 2026
- Knowledge cutoff
- —
- Context window
- —
- Max output
- —
- Native reasoning
- No
- Relative latency
- high
- Input modalities
- text, image
- Output modalities
- video
- Open weights
- No
- Cached input
- —
- Batch discount
- —
Frequently asked
How much does Runway Gen-4.5 cost?
Runway Gen-4.5 is billed at $0.12 / video sec.
What is Runway Gen-4.5's context window?
Context limits for Runway Gen-4.5 depend on the input format rather than a token count.
Is Runway Gen-4.5 a reasoning model?
No. Runway Gen-4.5 answers directly without a native thinking phase, which keeps latency and cost predictable.
What is Runway Gen-4.5 best for?
Runway's highest-fidelity output. The quality tier of the Runway line at 12 credits per second, roughly two and a half times Turbo. Worth it only where the fidelity gain is visible in the final cut — Runway's real advantage is the surrounding editorial toolset, including the Aleph video-to-video editing model, rather than the generator alone.