AI Video Generators Reviewed: Kling, Runway, Jimeng & More

After HeyGen Video launched and HeyGen Voice topped Artificial Analysis, a HeyGen executive argues open models will dominate video and voice, shifting the moat to private data and cost.

A developer built ComfyArt, a free, fully local open-source AI design canvas on ComfyUI with an infinite canvas and a design agent, using Lovart as the benchmark.

A user testing Krea 3 beta says reference-driven image editing and per-region prompts work well, but it caps output at 4 images, the Krea Agent button can't be closed, and chat history is hard to review.

A user shares how to claim one free month of Google AI Pro, which includes higher usage limits, 5TB of storage, Gemini 4 Argon access and up to 1,000 Google Flow video credits.

A hands-on test of Vidu Q4 Preview for a racing animation, covering its 15 reference images, 3 reference audio tracks, 2K/4K output and pricing from $0.014 per second.

Vidu released Q4 Preview, pitched at low-cost batch testing of ad openings, with support for 15 reference images and output up to 4K.

A user shares a Flow workflow for 30-second episodes with 3 generations each, using 360P to save monthly credits before moving to 720P.

A designer describes using Krea 3 with 3–4 reference images and short prompts to generate 30 product concepts, then animating them with Seedance 2.5 via the Krea MCP.

A tutorial claims Google Flow paired with ByePlus AI can produce videos in 10 minutes without worrying about credits, pitched at low-cost YouTube content.

A user shares a cost comparison chart claiming the new Kling model costs about one-third as much to use as Seedance 2.5, and links to Kling's official account.

A collage demonstrates generating UGC ads with different faces and hooks for the same product using Arcads prompts alone, to test which converts.

A post says an AI beauty account with nearly 250,000 followers has 1,169 paid subscribers worth potentially $10K+ a month, and promotes Arcads AI for generating UGC-style videos.