Synthesia Syren: What It Does, Pricing and Access
Synthesia Syren, an AI video agent in beta since Oct. 9, 2026, turns a prompt into a 3-minute video. Free launch credits to Nov. 9, credit cost, plans, limits.
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Synthesia launched Syren in beta on Oct. 9, 2026: an AI agent that builds a video of up to 3 minutes (motion graphics, an avatar, voiceover, music) from a prompt or a document, then revises it through chat. Syren is open on every plan, from the free Basic plan (watermarked, in “select regions” only) to Enterprise. On Oct. 9, Synthesia gave each user 2,000 Syren-only credits, valid through Nov. 9, 2026; after that, Syren draws on your account’s standard credits: the 500 a month every plan gets, plus 1,250 on Starter at $19/month or $14/month billed yearly, the price served to U.S. visitors (Synthesia’s announcement, docs and Help Center, checked Oct. 9, 2026; pricing checked Oct. 11, 2026).
One key point: learning your style from your existing videos, the headline promise before launch, isn’t there yet. Synthesia says it’s coming “soon.”
Launch video embedded in Synthesia’s Oct. 9, 2026 announcement; Synthesia presents it as made entirely by AI. It’s a vendor demo.
What Is Synthesia Syren?
According to the announcement by Peter Hill, Synthesia’s CTO, Syren is a creation tool where the AI agent doesn’t assist the video editor, it is the editor. The agent writes the video as code, and an in-house rendering engine plays it back live, so you watch the video take shape. Output can combine motion graphics, animation, avatars, voiceover, music and b-roll.
Synthesia pitches Syren for fast, creative video: product launches, explainers, product how-tos, marketing content and ads. For training, compliance and onboarding, where every line has to be exact and kept up to date, it still points to its classic editor (Studio) and its Assistant (Syren page FAQ and Help Center, checked Oct. 9, 2026).
Who Can Use Syren, and What Does It Cost?
Syren opens from a Syren button under Tools in Synthesia’s navigation. Here’s what each plan gets, per the Help Center and the docs (updated Oct. 9, 2026), checked Oct. 9, 2026, and the pricing page, checked Oct. 11, 2026, all rechecked Oct. 16, 2026:
| Plan | US price | Syren |
|---|---|---|
| Basic | $0 | Watermark; download and sharing for the first 2 weeks; “select regions” only |
| Starter | $19/month, or $14/month billed yearly | No watermark, download and sharing |
| Pro | $89/month, or $59/month billed yearly | No watermark, download and sharing |
| Enterprise | Custom | Every organization, for users with a full license; admins can switch Syren off |
Since launch, the pricing page lists Syren on every plan: 2,000 promo credits “for a limited time,” videos of up to 3 minutes, your brand colors, and a watermark on Basic only (checked Oct. 16, 2026). The “select regions” where the free plan includes Syren, mentioned in the docs, aren’t listed. Outside the U.S., Synthesia’s pricing page serves a standard dollar grid: Starter at $29, or $18 billed yearly, and Pro at $89, or $64.
Launch credits: 2,000 credits given to each user on Oct. 9, usable only in Syren, not transferable or redeemable, with “fair usage caps.” They expire Nov. 9, 2026, at 11:59 p.m. (labeled “BST” in the Help Center). Synthesia says that’s enough for a first video. The Syren page FAQ also mentions launch credits received at sign-up, valid for one month; the expiration for accounts created after Oct. 9 isn’t specified.
Usage: per the Syren page FAQ, a two-minute video with up to two rounds of edits typically uses 1,000 to 2,000 credits, or 500 to 1,000 credits per minute, versus about 100 for a standard video in the pricing page estimator (a calculation). The pricing page’s comparison table gives the same range for a one-minute video: there on Oct. 9, gone on Oct. 16, it was back on Oct. 18, 2026 (“A 1-min video typically uses 1,000- 2000 credits”). The two official pages therefore differ by a factor of two. On Starter’s 1,250 monthly credits (1,750 with the 500 every plan gets), that’s about one two-minute Syren video a month; on Pro’s 6,000 (6,500), 3 to 6 (a calculation).
The separate waitlist offer, $50 in credits for the first 1,000 sign-ups, closed at 11:59 p.m. BST on Oct. 8 (6:59 p.m. ET); it’s unrelated to the launch credits.
How Do You Make a Video With Syren?
Per the Syren docs:
- Pick a shape, Wide 16:9 (default) or Tall 9:16, or start from an example (Quick start, Explore or your own videos). You can’t choose a shape when starting from an example.
- Describe the video: audience, tone, visual style, narration, music.
- Optionally add documents, images, videos, PowerPoint files or YouTube links, then send. Syren may ask follow-up questions, such as who the video is for.
- Watch the live preview, then ask for changes in chat: script, avatar, voice, scene style, music, shot types, pronunciation. Syren receives the playhead position and the selected element with each message.
- Edit an element directly (move it, retype a heading) or give it a targeted instruction (“fade this in at 2s”).
- Generate at 1080p, 720p, 480p or 360p, then publish with an open link, SSO, a password or an email gate.
The docs also describe using Syren from Claude through the Synthesia connector, with the same credit usage; you can’t upload files (images, videos, PDFs) from Claude, so those have to be added in Syren.
What Are Syren’s Limits?
Synthesia lists these in its docs, Help Center and Syren page FAQ (checked Oct. 9, 2026):
- 3 minutes max per video, on every plan.
- 3D doesn’t export: 3D elements show in the preview but not in the downloaded video, even though the Syren page lists 3D among what Syren creates.
- No Personal Avatar or cloned voice: those require the classic editor. No interactive avatars either.
- Avatar scenes over 30 seconds can time out, very long prompts can fail, and only the first 24 audio tracks are mixed into the export.
- Voiceover languages: not stated for Syren. The pricing page lists 140+ languages and voices for the platform without saying what applies in Syren.
- Beta: Synthesia asks users to review avatars and audio before sharing, and promises more export options.
Does Syren Learn Your Style From Your Videos?
Not yet. The announcement says Syren “will soon learn” a company’s brand from its existing videos: graphics, motion style, pacing and edit rhythm. At launch, the Syren page FAQ describes a baseline brand built from your colors, with full custom brand kits (typography, animation styles) “coming soon.” You can also give Syren your brand assets, a video whose style to match, or a description of your brand. On Oct. 9, the same page’s “How Syren works” section still showed a brand kit that “learns from your existing videos”; that passage was gone by Oct. 16, 2026, and the pricing table now promises only “your brand colors.” The Oct. 9 announcement still says the learning is coming “soon.”
Video Rights and Your Data
According to the Syren page FAQ, you own the videos you make with Syren, as with any Synthesia video, and you can use them commercially; you’re responsible for having rights to what you upload (images, footage, other brands’ logos).
No Syren-specific notice explains what happens to the documents and videos you provide. Synthesia’s general policies, rechecked Oct. 9, 2026, haven’t changed:
- The Customer Terms of Service, effective July 20, 2026, leave ownership of inputs and videos with the customer but grant Synthesia a limited license, “only as reasonably necessary,” including to provide, maintain and improve the Services.
- The FAQ on the AI Governance page says Synthesia doesn’t use customer data to pre-train its models, and that any fine-tuning follows the customer’s written instructions.
When library learning ships, the open questions are which videos get analyzed, with what consent, for how long, and whether it fine-tunes a model: undisclosed so far. This isn’t legal advice; if employees or customers appear in your videos, check with your privacy or legal team.
Is Syren the Same as the SyRen Model in AI Playground?
Synthesia doesn’t explicitly link the two names. The announcement says Syren runs on an in-house rendering engine that has “quietly” powered motion graphics in Synthesia since June. The AI Playground docs (updated Aug. 25, 2026) credit its free motion graphics to an in-house “SyRen” model, and the editor’s Motion feature is still in beta and uses no credits (checked Oct. 9, 2026). Syren itself uses credits.
Where to Compare Synthesia
Credits are shared across the platform (avatars, dubbing, surveys, Syren). Quotas, avatars and limits for each plan are covered in the Synthesia guide. To compare: Synthesia vs Colossyan for training, HeyGen alternatives for avatar tools, and AI dubbing software for translating videos you already have.
See Synthesia’s Syren page commission.
FAQ
Is Syren free?
You can try it on the free Basic plan, offered in “select regions,” with the 2,000 launch credits given on Oct. 9 and valid through Nov. 9, 2026; videos are watermarked and can only be downloaded or shared for two weeks. After that, Syren uses your plan’s credits.
Is Syren available in the US?
The docs mention a regional restriction only for the free plan (“select regions,” not listed); Starter, Pro and Enterprise include Syren with no country limit stated. Voiceover languages for Syren aren’t specified.
How many credits does a Syren video use?
Typically 1,000 to 2,000 credits for a two-minute video with up to two rounds of edits, per the Syren page FAQ (checked Oct. 16, 2026). Usage depends on length, complexity and how much you revise; the 2,000 launch credits cover a first video.
Does Syren use my videos to train AI?
Learning from your video library isn’t available yet. Synthesia’s general policies rule out pre-training on customer data, but its terms let it use that data to improve its services; no Syren-specific notice details the processing.
