Inspect the documented capabilities, access conditions and sources for your task.
Initial research: 2026-09-21. Check current terms before choosing.
Updated
No fetched source states a current maximum clip length for Gen-4.5.
Source for Max Clip Length (opens in a new tab)Not confirmed in fetched sources; Sept 2026 roundups name Kling 3.0 Omni, Seedance 2.0 and Veo 3.1 as the three with in-generation synchronised audio, and do not include Runway in that set.
Source for Audio Generation (opens in a new tab)Runway sells a creative environment with keyframes, motion brush, video-to-video and camera controls rather than an API-first model.
Source for Image To Video (opens in a new tab)Reviewers name it 'best for control' — keyframes, motion brush and camera controls are the reason to pick it over cheaper raw generators.
Source for Character Consistency (opens in a new tab)Runway moved Unlimited subscribers to Max on 1 September 2026; Max carries 9,500 credits but no credit-free Explore Mode.
No litigation found in fetched sources. Runway has an opposite-facing track record on licensing: a Sept 2024 Lionsgate deal for a custom model trained on 20,000+ titles, and a June 2025 AMC Networks partnership. Raised $315m in Feb 2026 at a $5.3bn valuation.
Automatic source checks. These do not change the verification date of the facts above.
Runway added frame-rate conversion to its developer platform, targeting 24, 25, 30, 48, 50, 60, 120, 23.98, 29.97 and 59.94 fps — a finishing-pipeline feature rather than a model upgrade, consistent with Runway positioning Gen-4.5 as the control-and-workflow choice.
Beyond feature support
How well a model performs depends on the task, version, and settings.
We have not published a reviewed quality evaluation for these versions yet. Feature support and price do not establish output quality.
Try the same small task with each option. Check accuracy, consistency, and how much editing you need to get a usable result.