AI Studios vs HeyGen, Synthesia and D-ID

Last updated 2026-11-10 · Competitor details from official pages, checked 2026-11-10

AI Studios, HeyGen, Synthesia and D-ID all make AI avatar videos, but they differ in free plans, avatar libraries and languages. On their official pages (checked 2026-11-10), AI Studios lists 2,000+ AI-generated avatars plus 155+ studio avatars on Team/Enterprise (100+ on Personal, 40+ on Free), while HeyGen lists the most studio-filmed stock avatars (700+) and the most languages (175+). D-ID has the lowest entry price ($5.9/mo) but no permanent free plan. All four offer voice cloning, real-time avatars and an API.

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At a glance

	AI Studios	HeyGen	Synthesia	D-ID
Free plan	Yes (12 credits + 3 short videos/mo)	Yes (3 videos/mo, 1 min)	Yes (500 credits/mo, ~10 min)	No — 14-day trial
Entry paid plan (monthly / yearly)	$29 / $24	$29 / $24	$29 / $18	$5.9 / $4.7
Ready-made avatars	2,000+ AI-generated + 155+ studio avatars on Team/Enterprise (100+ on Personal, 40+ on Free)	700+	240+ (Enterprise; 125+ on Starter)	100+
Languages (as each company states them)	TTS 50+, dubbing 70+	175+	140+	120+
Voice cloning	Yes	Yes	Yes	Yes (from Pro)
Real-time interactive avatars	Yes	Yes (LiveAvatar)	Yes (API)	Yes (Agents)
API	Yes	Yes	Yes	Yes (separate plans)

Avatar counts are as each company states them: HeyGen, Synthesia and D-ID count studio-filmed stock avatars; AI Studios lists AI-generated avatars and studio avatars separately (studio avatars: 155+ on Team and Enterprise, 100+ on Personal, 40+ on Free). Credits are defined differently by each company, so credit amounts are not directly comparable. Sources are listed on each comparison page; checked 2026-11-10.

Detailed comparisons

AI Studios vs HeyGenPlans, avatars, languages, translation and real-time avatars.AI Studios vs SynthesiaPlans, video minutes, avatars, dubbing and compliance.AI Studios vs D-IDFree plan vs trial, Studio and API plans, translation languages.Pricing: AI Studios vs HeyGen vs SynthesiaPlan-by-plan price table.

How to choose

Start with the free plans. AI Studios, HeyGen and Synthesia have free plans; D-ID offers a 14-day trial. Run the same script on each.
Count the minutes you need. Check how many minutes of avatar video each plan really gives you — AI Studios uses 9 credits per minute of avatar video; Synthesia states about 100 credits per minute.
Check your languages. Compare the exact language list for text to speech and for video translation, not just the headline number.
Look beyond video. If you also need real-time avatars, an API or enterprise security reviews, compare those plans too.

Frequently asked questions

What are the main alternatives to HeyGen?

Synthesia, AI Studios and D-ID are the main AI avatar video alternatives to HeyGen. AI Studios matches HeyGen's entry price ($29/mo or $24/mo yearly) and adds 2,000+ AI-generated avatars to its 155+ studio avatars on Team/Enterprise (100+ on Personal, 40+ on Free); HeyGen lists more studio-filmed stock avatars (700+) and more languages (175+).

Which AI avatar video tool has a free plan?

AI Studios, HeyGen and Synthesia have free plans. D-ID offers a 14-day trial instead of a permanent free plan (checked 2026-11-10).

How many ready-made avatars does each offer?

AI Studios lists 2,000+ AI-generated avatars plus 155+ studio avatars on Team/Enterprise (100+ on Personal, 40+ on Free). HeyGen lists 700+ stock video avatars on paid plans, Synthesia 240+ (Enterprise; 125+ on Starter) and D-ID 100+. Counting studio-filmed stock avatars only, HeyGen lists the most.

Can I compare prices by credits?

Not directly — each company defines credits differently. Compare the minutes of video each plan includes. In AI Studios, avatar video export uses 9 credits per minute.