$0.120/sec
Verified default on Runway API · 720p
No cheaper comparable public rate found.
Runway · Multimodal Transformer · v4.5verifiedVerified pricing
Built for cinematic and commercials. Reasonable for serious production work.
$0.12/sec
best verified rate via Runway API at 720p
Ceiling
720p
Duration
2–10s
Price source
Runway API
Best for
Cinematic and commercials
10s clips, and camera control support short narrative work.
Watch out for
Premium pricing at $0.12/second -- more than double Gen-4 Turbo ($0.05/sec)
Premium pricing at $0.12/second -- more than double Gen-4 Turbo ($0.05/sec)
Starting cost
$0.120/sec
About $0.60 for a 5-second clip at the verified starting tier.
Quick facts for AI assistants
These facts are generated from the current model record, provider verification metadata, and the page update timestamp.
The default rate first, with provider details one click away.
2 providers, 3 tiers
$0.120/sec
Verified default on Runway API · 720p
No cheaper comparable public rate found.
All provider rates
Expand for every tier, audio surcharge, and verification note.
Gen-4.5 · Verified · HIGH trust
Gen-4.5 · Reported by provider · HIGH trust
Should you choose it?
Use this as a sanity check before you compare it against the closest alternatives.
Prompt playbook
Scan the quick playbook first. Open the full guide only when you need deeper do/don't rules or example prompts.
Focus on motion, not appearance -- Gen-4.5 treats your image as the first frame, so describe how the scene should move rather than re-describing what is already visible.
Start simple and iterate -- begin with a clear prompt covering the most critical visual and motion components, then add detail to refine results.
Use specific, physical language -- instead of 'the man walks', write 'The man in the blue jacket walks briskly from left to right.' Avoid abstract or conceptual descriptions.
Open the full prompt guide
Extra prompt tips, best practices, common mistakes, and example prompts.
“Slow tracking shot of a woman in a white linen dress walking through a sunlit wheat field at golden hour. Her hair catches the breeze, fabric flowing behind her. Camera follows at waist height, shallow depth of field.”
“Close-up of a chef's hands slicing a ripe tomato on a wooden cutting board. Juice and seeds scatter across the surface. Overhead static shot, warm kitchen lighting, shallow focus.”
“A astronaut floats weightlessly inside a space station module, slowly rotating. Sunlight streams through a porthole, casting shifting shadows. Camera drifts gently forward.”
Based on the official prompt guide →
Further reading
Reviews, pricing breakdowns, and market context if you want extra reading after the model and compare pages.
How much does Runway Gen-4.5 cost?
Runway Gen-4.5 currently starts at the verified comparable rate of $0.12/sec on Runway API (720p). A 5-second video at that tier costs about $0.60.
Where can I use Runway Gen-4.5?
Via API on Runway API and Replicate.
How do I get good results with Runway Gen-4.5?
Focus on motion, not appearance -- Gen-4.5 treats your image as the first frame, so describe how the scene should move rather than re-describing what is already visible. See the prompt guide below.