8 Best AI Video Generators for Social Media in 2026

Captions is the best AI video generator for social media because it is built for short-form video, with captions and social formats. The free plan gives basic editing with one-time credits of 60 to 200, which never refresh, so it suits a quick test rather than a series. Basic at $9.99 a month is sold in the app and help centre, not on the public pricing page, while Max at $24.99 a month is the page's lead plan.

The catch is the one-time credit grant. The free plan covers basic editing, but its 60 to 200 AI credits never refresh, so the AI features stop once they are spent. Basic at $9.99 a month, sold in the app rather than on the public pricing page, gives 200 credits a month, and Max at $24.99 gives 500.

Kling is the AI video generator for cinematic social clips. The free Basic plan gives monthly free credits with 720p exports and a watermark, and no commercial use, which suits personal projects and tests. Standard at $10 a month gives 660 credits and commercial use, with a renewal rate of $8.80 a month and an annual price of $79.20.

The catch is the trial shape. Basic costs $0, but its free credits are claimed at login, expire after 31 days, and the output is watermarked at 720p with no commercial license. Standard lists at $10 a month, with a $6.99 first month and an $8.80 renewal, for 660 credits and commercial use.

HeyGen is the AI video generator for avatar-led social videos. The free plan gives 3 videos a month of up to 1 minute each, with a watermark, which suits a quick demo or a social post. Creator at $29 a month, or $24 billed annually, gives 600 credits a month and more avatar options, while Pro starts at $49 a month.

The catch is the credit cost per minute. Creator at $29 a month, or $24 billed annually, gives 600 credits, which HeyGen puts at about 30 minutes of Avatar IV video, but other models cost far more per minute. Unused credits on monthly plans roll over for one extra month only, and commercial use starts on Creator, not on the free plan.

Pika is the AI video generator for the cheapest paid social start. Starter at $10 a month, or $8 billed annually, gives 600 credits a month and a commercial license, though the free plan gives 0 monthly credits and only credit packs. Creator at $28 a month billed annually, or $35 month to month, adds more credits and features.

The catch is the empty free plan. Pika relaunched in September 2026 with a free account that includes every model and no watermark, but 0 monthly credits, so nothing generates until a credit pack is bought or Starter at $10 a month, or $8 billed annually, is paid. Plan credits refresh each period and do not roll over.

Runway is the AI video generator for cinematic social clips with editing. Gen-4 gives strong prompt control and a professional editor around it, though the free plan gives only 125 one-time credits for trying it. Standard at $15 a month, or $12 billed annually, gives 625 credits a month and removes the free-tier limits.

The catch is the one-time free grant. New accounts get 125 credits, which covers about two 5-second Gen-4.5 clips, and then generation stops until Standard at $15 a month, or $12 billed annually, is bought. Standard gives 625 credits a month, which Runway puts at about 52 seconds of Gen-4.5 video.

Hailuo is the AI video generator for an affordable social start. Standard at $14.99 a month gives 1,000 credits a month, about 40 six-second 768p clips, and new accounts get one-time trial credits with a watermark. Pro at $54.99 a month adds more credits. Promos sometimes show $7.99, but that is not the standard price.

The catch is the trial shape. Hailuo gives new accounts a one-time welcome credit package that expires three days after it is granted, and the subscribe page lists 0 monthly credits on the free plan. Standard at $14.99 a month gives 1,000 credits, watermark-free downloads and commercial use, though promos sometimes show $7.99.

Synthesia is the AI video generator for avatar-led social explainers. The free Basic plan gives 10 minutes a month with 500 credits and 9 avatars, though exports carry a watermark and downloads are not included. Starter at $19 a month, or $14 billed annually, removes the watermark, while Pro at $89 a month adds custom avatars and more minutes.

The catch is the credit math on top of the free minutes. Every plan includes 10 minutes a month, and Starter at $19 a month, or $14 billed annually, adds 1,250 credits, which Synthesia puts at roughly 12 more minutes of typical video. SCORM export and the widest avatar controls sit on Enterprise, not on Starter.

PixVerse is the AI video generator for free social video with daily credits. The free Basic plan gives 60 initial credits plus 30 daily credits refilled at 0:00 UTC, though daily credits expire the same day and exports are 540p with a watermark. Standard at $10 a month, or $8 billed annually, gives 1,200 credits for 30 days plus 60 daily credits at 720p without a watermark.

The catch is the size of the daily refill. The free Basic plan gives 60 credits at signup plus 30 credits a day, which covers only a few seconds of video at 720p with sound, and free video caps at 540p with a watermark. Standard at $10 a month, or $8 billed annually, gives 1,200 credits every 30 days plus 60 a day.