Best AI Video Generators for Startup Marketing (2026)

Short answer: Most bootstrapped founders need one generator for footage (Runway, Luma, Adobe Firefly or Google's video API) and one tool for people and edits (HeyGen or Synthesia for avatars, Descript or Opus Clip for editing and clips). Start with Runway or Firefly for B-roll and ad shots, HeyGen for a talking-head explainer, and Opus Clip to cut founder videos into shorts. Use a free plan only for testing, because some free tiers do not allow commercial use.

Every price and term below comes from the vendor's own page, checked on 12 Nov 2026. Where we could not confirm a number, we left it out and linked the page. Advice is ours and marked as such.

TL;DR#

• Free plans are for testing. HeyGen's terms limit free-plan output to "personal, non-commercial, and internal evaluation purposes" and bar advertising and client work (HeyGen terms).
• Avatars and ads don't always mix. Synthesia lists "Use in any form of paid promotion" as not allowed with stock avatars; custom avatars are exempt (Synthesia licensing).
• Generators are cheap to try. Firefly Standard is US$9.99/mo (Adobe), Runway Standard is $15/mo or $12/mo billed yearly (Runway).
• Google's API changed. The Veo 3.1 preview models in the Gemini API were shut down on 22 Oct 2026; Google points developers to Gemini Omni Flash (Google AI Studio), at roughly $0.07 per second of 720p (pricing).
• Product demos are a different job. For screen-recorded walkthroughs, use our product demo video guide instead.

Disclosure: ZeroRaised publishes this guide and is a launch site for bootstrapped products. We have no commercial relationship with any vendor below and earn nothing if you sign up. This is not legal advice.

The comparison table#

Kling is also popular for generated footage. Its credit policy prices extra credits at "$1 USD = 66 Credits" (Kling credit policy), but its membership page did not render plan prices for us today, so we have not listed them.

Pick by marketing job#

The generators: Runway, Luma, Firefly, Google#

Runway#

Runway's free plan is "Free forever" with "125 one-time credits to explore Runway's AI tools". Standard is $15/mo ($12/mo yearly, 625 credits), Pro $35/mo ($28/mo yearly, 2,250 credits) and Max $95/mo ($76/mo yearly, 9,500 credits). Standard has "No watermarks", and extra credits you buy "never expire" (Runway pricing). On rights, Runway's terms say "The Company does not claim ownership of any of your Inputs or Outputs" and that it "does not restrict your commercial use of your Outputs", subject to the agreement. The same section grants Runway a licence to use inputs and outputs to train its models (Runway terms), so do not upload unreleased product secrets.

Our read: Runway is the default for generated launch B-roll. Plan short shots; credits go quickly on long clips.

Luma#

Luma lists three individual plans: Plus at $30/mo ($25/mo billed yearly, $300) with 10,000 credits, Pro at $90/mo ($75/mo yearly) with 40,000 credits, and Ultra at $300/mo ($250/mo yearly) with 150,000 credits. "Commercial use" appears as a Plus feature, and higher plans include everything in Plus (Luma pricing). The pricing page does not show a free plan.

Adobe Firefly#

Firefly is the cheapest subscription here and the one with the clearest commercial-safety statement. Adobe says "Outputs from Adobe Firefly AI models are safe for commercial use" and "Eligible enterprise customers can also receive IP indemnification for select Adobe Firefly outputs". It also warns: "You're responsible for determining whether content generated by partner models is appropriate for your project" (Firefly plans).

Adobe was running introductory discounts on Pro and Pro Plus when we checked, which it says end on 6 Dec. The free plan gives limited free generations of images, video and audio.

Our read: 20 five-second clips a month is enough for a handful of social posts. If you need commercial safety for a client or a regulated customer, stick to Adobe's own models rather than partner models inside Firefly.

Google: Gemini Omni Flash replaces the Veo previews in the API#

If you planned to automate video through the Gemini API, note the change. Google's docs say the Veo 3.1 preview models (veo-3.1-generate-preview, veo-3.1-fast-generate-preview and veo-3.1-lite-generate-preview) were shut down on 22 Oct 2026, and tell developers to "Migrate to Gemini Omni Flash (gemini-omni-1.2-flash)" or use GA models on Google's enterprise platform (Veo docs).

Omni Flash bills video as output tokens, at $12.00 per 1M tokens on the standard tier. Google says that "equates to an effective price of approximately $0.07 per second" of 720p video, about $0.70 for a 10-second clip, with about $0.104 per second for 1080p and about $0.209 for 4K, both with upsampling. There is no free tier for it (Gemini API pricing).

On the consumer side, Google's AI plans include Google Flow credits for video: 200 a month on AI Plus, 1,000 on AI Pro and 10,000 or 25,000 on AI Ultra (Google AI plans). Prices vary by country and the US page did not show them to us, so check in your own account.

The avatar tools: HeyGen and Synthesia#

HeyGen#

HeyGen's free plan gives "3 videos a month, watermarked", each up to 1 minute. Paid plans (HeyGen pricing):

• Creator: $29/mo, or "$24/month if you pay annually", 600 credits, videos up to 30 minutes, HeyGen branding removed.
• Pro: $49/mo, 1,000 credits, exports up to 4K.
• Business: $149/mo, 1,500 credits, videos up to 60 minutes, extra seats $20/seat/month, SAML/SSO.

The terms matter more than the price. Free-plan output gets "a limited, non-exclusive, non-transferable, revocable license to your User Output solely for personal, non-commercial, and internal evaluation purposes" and may not be "used in connection with commercial activities, advertising, client work". On paid plans HeyGen "does not restrict your ability to use User Output for your own purposes (including for commercial purposes)" and you "own all rights" in your input and output (HeyGen terms). The terms also say that where the law requires it, "you must proactively disclose that such User Output was created using artificial intelligence technologies".

Synthesia#

Synthesia's free Basic plan includes 10 minutes of video a month with a Synthesia watermark. Starter is $19/mo ($9 the first month) or $14/mo billed yearly; Pro is $89/mo ($49 the first month) or $59/mo billed yearly (Synthesia pricing).

The catch is advertising. Synthesia's licensing page lists website, YouTube and organic social use as allowed with stock avatars, but lists "Use in paid Facebook ads", "Use in paid YouTube ads", "Use in paid TikTok/Snapchat ads" and "Use in any form of paid promotion" as not allowed. With a custom avatar "the licensing restrictions above don't apply", provided the person has given "free, informed consent for their voice or likeness to be used in your videos" (Synthesia licensing).

Our read: Synthesia is fine for onboarding, help-centre and homepage explainers. If you plan to boost a video as an ad, use HeyGen on a paid plan or a custom avatar of yourself.

The editors: Descript, Opus Clip and InVideo#

Descript edits video by editing the transcript. The free plan has 60 media minutes a month, 100 one-time AI credits, and 720p exports that are not watermark-free. Paid plans are listed at $16 or $24 (Hobbyist), $24 or $35 (Creator) and $50 or $65 (Business) per person a month, with the lower figure for annual billing (Descript pricing).

Opus Clip turns long videos into short clips. Free exports carry a watermark and media "Expires after 3 days"; Starter is $15/mo with "Watermark-free video export" and Pro is $29/mo with "100GB fixed storage" (Opus Clip pricing). This pairs well with a TikTok plan for indie apps: record one long founder video, clip it into five shorts.

InVideo generates whole videos from a prompt with stock footage. Starter is $20 per seat a month or $10 billed yearly with 400 credits; Plus is $60 or $30 with 2,000 credits. Its FAQ warns: "Unused credits don't roll over to the next month" (InVideo pricing).

Worked example: a 30-second launch teaser for under $30#

This is an illustrative budget, not a vendor quote.

1. Script it yourself. Six shots of 5 seconds: problem, product shot, three feature shots, logo and URL.
2. Generate the four non-product shots in Firefly Standard (US$9.99/mo, up to 20 five-second clips). Allow three takes per shot: 12 clips, inside the allowance.
3. Use real screen recordings for the product shots. Never generate fake UI; viewers check.
4. Add a 20-second founder intro with a HeyGen Creator plan if you want a presenter ($29/mo, or skip and record yourself).
5. Cut and caption in Descript's free plan for a test cut, or Opus Clip Starter ($15/mo) for a watermark-free vertical version.

Firefly plus Opus Clip is US$24.99 for one month. Through the API instead, six 5-second 720p shots with three takes each is 90 seconds of video, about $6.30 at Google's ~$0.07 per second estimate.

If you need still images for the same launch (thumbnails, OG images), see our AI image generators guide.

Our rule: never use an avatar to voice a testimonial from a customer who does not exist, and re-check plan terms before you pay for ads.

Frequently asked questions#

Can I use AI-generated videos commercially for my startup?#

On paid plans, usually yes, but check each plan. HeyGen's free plan is limited to personal, non-commercial and internal evaluation use. Runway's terms say it does not restrict commercial use of outputs. Luma lists commercial use from its $30/mo Plus plan. Synthesia's stock avatars cannot be used in any form of paid promotion.

What is the cheapest AI video generator for a startup?#

For a few short generated clips, a pay-per-second API is cheapest: Google says Gemini Omni Flash works out at roughly $0.07 per second of 720p video, about $0.70 for a 10-second clip. For a subscription, Adobe Firefly Standard is $9.99/mo and Runway Standard is $12/mo billed yearly.

Which AI video tool is best for avatar explainer videos?#

HeyGen and Synthesia. HeyGen's Creator plan is $29/mo ($24/mo billed yearly) and its paid terms do not restrict commercial use. Synthesia Starter is $19/mo ($14/mo billed yearly), but its stock avatars cannot be used in paid ads, so pick a custom avatar if you plan to run ads.

Can I turn a long video or podcast into short clips with AI?#

Yes. Opus Clip is built for this: Starter is $15/mo and Pro $29/mo, and the free plan exports with a watermark and keeps media for 3 days. Descript also edits video by transcript, with a free plan of 60 media minutes a month and paid plans from $16 per person a month.

Is OpenAI Sora still available for marketing videos?#

No. OpenAI's help center says "The Sora web and app experiences were discontinued on April 26, 2026. The Sora API was discontinued on September 24, 2026." That is why it is not in this guide. For generated footage, pick Runway, Luma, Firefly or the Gemini API instead.

Launch it where people are looking#

Once your teaser is cut, work through our product launch checklist for bootstrapped makers, then submit your product to ZeroRaised for free. For more tool guides for founders building without investors, join the ZeroRaised newsletter.

Sources#

• Runway pricing, last checked 12 Nov 2026
• Runway terms of use, last checked 12 Nov 2026
• Luma pricing, last checked 12 Nov 2026
• Adobe Firefly plans, last checked 12 Nov 2026
• Google AI Studio: Veo docs, last checked 12 Nov 2026
• OpenAI Help Center: What to know about the Sora discontinuation, last checked 12 Nov 2026
• Gemini API pricing, last checked 12 Nov 2026
• Google AI plans, last checked 12 Nov 2026
• HeyGen pricing, last checked 12 Nov 2026
• HeyGen terms, last checked 12 Nov 2026
• Synthesia pricing, last checked 12 Nov 2026
• Synthesia video licensing, last checked 12 Nov 2026
• Descript pricing, last checked 12 Nov 2026
• Opus Clip pricing, last checked 12 Nov 2026
• InVideo pricing, last checked 12 Nov 2026
• Kling credit policy, last checked 12 Nov 2026