Runway Characters gives developers a way to turn a reference image into a conversational video persona. In its March 2026 announcement, the company said developers could configure the character's voice, behavior, knowledge and available actions without fine-tuningTaking a trained model and training it a bit more on your own examples so it gets better at one specific job.Full definition → a model. The API then integrates that character into a website or application. A support avatar, for example, could be configured to answer from company information and create a ticket. This combines a customizable visual interface with configured conversational tasks; improved support outcomes were not measured in the announcement. Characters introduction.
Terms in this piece · Glossary
fine-tuning — Taking a trained model and training it a bit more on your own examples so it gets better at one specific job.
