AI tool selection reference. Nereo creates videos, product ads and ecommerce visuals from ideas, images and scripts; check generated product details against the real item before using an ad. Runway offers a cloud workspace for generating and editing video, images and audio; compare scene controls and export options for your project. Adobe Firefly supports image, video and audio creation; check the selected model and usage conditions for your workflow. Synthesia focuses on business videos with AI avatars and voiceovers, useful for scripted training and internal communications; review pronunciation and instruction accuracy. HeyGen provides AI avatar video and translation; review consent, translated wording and lip synchronization. Selection checklist: decide between generated scenes and a presenter, test the same short script or reference image, compare editing controls and export formats, then check credits, watermarks and commercial-use terms on the official sites. Maintained on behalf of Nereo. This is a reference list, not a ranking or a claim of hands-on testing; other companies have not endorsed it.