Synthesys Review: AI Video and Avatar Platform — Is It Worth It for Australians?

Pricing figures updated 6 September 2026: USD prices are converted at the current rate (1 USD ≈ 1.40 AUD, verified 5 September 2026) and shown ex-GST, replacing the retired 1.55 + GST basis. A GST-registered Australian business that supplies its ABN is not charged GST on an imported digital service; other buyers should allow ~10% on top (Methodology).

Verdict (TL;DR): Synthesys packs genuine value into every subscription tier — AI avatars, voice cloning, multi-model video generation (Sora 2, Google Veo 3.1, Kling 3), dubbing, and UGC ad creation all in one place. For Australian content marketers and small businesses who want a single tool that covers a lot of ground, the pricing is reasonable. The caveats: it's priced in USD, data sits on UK/EU infrastructure (not Australian), and the voice cloning and digital twin features carry real consent obligations that are entirely on the user to manage. Sora 2 can no longer be served from the model list either: OpenAI shut its API down on 24 September 2026.

Score: 15/25 — ⭐⭐⭐ Good

Last reviewed: 26 June 2026 by Adam.

What Synthesys is

Synthesys is an AI video platform founded in London in 2020 by Nick Koukoulakis. The company — registered as Nouveau Media Ltd at 111 Watling Gate 1, 297–303 Edgware Road, London NW9 6ND — has been building AI video generation since before ChatGPT existed, and claims over 1,000,000 videos generated for 50,000+ active users globally.

The product has evolved considerably from its voice-generator origins. Today, Synthesys describes itself as a "multi-model AI video agent" — a platform that routes your content through the most appropriate frontier model (Sora 2, Google Veo 3.1, Kling 3, Wan 2.5) depending on the output type and style required. In practice, this means one subscription gives you access to a range of generation capabilities that would otherwise require separate tools.

Key features include: - AI avatar video — presenter-led videos using a library of 200+ stock avatars or your own custom "digital twin" - Voice cloning — create a synthetic voice from your own recordings (or, critically, someone else's — with their consent) - AI UGC video — simulated user-generated content for ads, social, and product marketing - AI dubbing — translate and re-voice existing videos into 175+ languages - Frontier model video generation — Sora 2, Veo 3.1, Kling, and Wan via a single interface - Face swap ("Recast") — swap faces in video (a feature with serious consent implications — see below)

Corporate clients named publicly include Coca-Cola, Yahoo, AT&S, Heat and Control, and TCS.

What it costs in Australia

Synthesys publishes a clear pricing page (synthesys.io/pricing — verified 26 June 2026). All prices are in USD. Annual billing saves approximately 30% on listed monthly rates.

Exchange rate: US$1 ≈ A$1.40 as of September 2026. GST: Synthesys is a UK-based supplier. Offshore digital services are typically subject to Australian GST under non-resident supplier rules — check with your tax adviser. No GST-inclusive pricing is published by Synthesys.

Credits per plan (monthly, re-read 30 September 2026): Starter 3,500 / Pro 8,000 / Agency 17,000 / Max 30,000+ (June: 1,000 / 2,500 / 5,400). Credit consumption varies by model — a standard 15-second product ad uses 75 credits; a Sora 2 15-second video uses 975 credits. At the Indie tier, Sora 2 generation is effectively one video per month; Agency allows five.

No confirmed free tier, though a free trial process exists via the app.

How it works in practice

The workflow is flexible. For avatar video, you write or paste a script, pick a stock avatar or upload your digital twin, choose a voice, and render. For UGC-style content, you pick from AI "UGC personas" — simulated everyday people delivering product pitches. For frontier model video, you write a text prompt and select the model.

The multi-model architecture is the distinguishing feature. Rather than being locked into a single generation engine, Synthesys routes your request based on content type. A cinematic clip goes to Sora 2; a product video may go to Veo 3.1; a fast-turnaround iteration goes to Wan 2.5. The platform handles model selection automatically, though you can override.

The video slide limit (6 slides on Indie, 12 on Studio, 30 on Agency) is a practical cap on how long or complex a single avatar video can be. For a two-minute training video with multiple scene breaks, you will need at least Studio.

Export resolution is 1080p on Indie and Studio; 4K on Agency.

What it does well

Breadth of output types in one subscription. Synthesys bundles more features than almost any competitor at its price point. Avatar video, voice cloning, AI dubbing, UGC personas, and frontier model generation in a single interface means you are not managing five separate tools.

Credible frontier model access. The integration of Sora 2 and Google Veo 3.1 — two of the most capable video generation models available in mid-2026 — into a sub-USD $120/mo subscription is genuinely impressive. At Agency tier, you get enough credits to make meaningful use of them.

Voice cloning breadth. 175+ languages, 1,000+ base voices, and voice cloning at every tier (10 clones on Indie, unlimited on Agency) is competitive. The platform also offers speech-to-speech conversion.

Data handling policy. Synthesys explicitly states that user content is not used to train AI models without opt-in consent, and that users retain full data ownership. This is clearer than many competitors. Synthesys is subject to UK data protection law and GDPR.

Ethics documentation. The company publishes an ethics page (synthesys.io/ethics, updated April 2026) confirming that all stock avatar talent is consented and verified, and that custom digital twins require identity verification and explicit consent.

What it doesn't do well

USD-only pricing and no AUD billing. All plans are in USD. For Australian subscribers, this means currency exposure, potential transaction fees, and no predictable AUD cost. Annual billing locks you into a USD rate for 12 months — a risk if the AUD weakens.

Data sits on UK/EU infrastructure, not Australian. Synthesys is a London-based company subject to UK GDPR, not the Australian Privacy Act. Your scripts, videos, voice samples, and digital twin data are processed and stored outside Australia. (synthesys does not publish server location details; infrastructure likely in UK/EU given company registration and GDPR compliance language.) For Australian organisations handling sensitive content — health, finance, government — this requires consideration.

Voice cloning and digital twin consent — buyer's responsibility. The platform allows you to clone any voice and create a digital twin of any person, provided you have their consent. Synthesys's terms require this consent; enforcement relies on the user. In Australia, cloning someone's voice or creating an AI version of their likeness without documented consent can expose you to liability under the Privacy Act 1988, the ACL, and — depending on the use — state-based laws. If you use AI-generated voice or likeness in advertising, ACCC guidance on AI-actor disclosure in commercial communications applies. The platform's face-swap feature ("Recast") carries the same obligations in an even more concentrated form.

No Australian-specific support or billing. Support is via email and ticket system. No Australian phone number, no AU business hours support, no local account management. (no AU support option found on the website.)

Slide limits on lower tiers constrain avatar video length. Six slides on Indie is limiting for anything beyond a short explainer. A 90-second training module with meaningful scene structure will need Studio at minimum.

Credit consumption on premium models is steep. At 975 credits per 15-second Sora 2 clip, Indie users effectively cannot make meaningful use of frontier models. This is honest pricing — compute costs are real — but it limits the "everything in one subscription" pitch at the entry tier.

Australian fit

Synthesys is a UK company with no Australian operations, no AUD billing, and no published Australian data residency. Its ethics and consent framework is strong for a platform of this type, but the obligations around voice cloning and digital twins sit entirely with the user — and Australian law is relevant here.

• AUD pricing: No. USD only. Currency exposure at all tiers.
• Data residency: UK/EU (inferred from company registration and GDPR compliance language). Not Australian. (no server location published by Synthesys)
• GST treatment: Not specified by vendor. Offshore digital supply typically subject to Australian GST under non-resident supplier rules.
• Local support: No AU-based support confirmed.
• Voice/likeness consent: Synthesys requires user consent for voice cloning and digital twins, but enforcement is on you. In Australia, this intersects with the Privacy Act 1988, ACL, and ACCC advertising guidance. If deploying AI-generated voice or likeness in paid advertising, AI-actor disclosure obligations apply.
• Australian market relevance: 175+ languages covers AU English. No AU-specific content templates or guidance.

Alternatives

• HeyGen (heygen-review-australia-2026 in Ghost-Ready) — direct competitor on avatar video and dubbing; broadly comparable features, similar USD pricing. HeyGen has stronger brand recognition in this category.
• Synthesia (synthesia-review-australia-2026 in Ghost-Ready) — enterprise-focused, cleaner interface, more documented compliance position; typically priced higher. Better for regulated-sector Australian buyers.
• Colossyan (review-colossyan-australia-2026 in Drafts) — strong on training and L&D use cases; worth a comparison if corporate video for internal communications is the primary need.

Bottom line

Synthesys is a well-built, feature-rich platform that punches above its price point on capabilities. The multi-model architecture, voice cloning, and UGC ad generation in one subscription offer genuine value for Australian content marketers and small businesses. It earns its three stars comfortably. What holds it back in the Australian context is the lack of AUD billing, UK/EU data infrastructure, and the real (if not unusual) legal exposure that comes with voice cloning and digital twin features when used without documented consent. If you are an Australian business primarily making marketing content with stock avatars, Synthesys is worth trialling at the Indie tier. If you are planning to clone voices or create digital twins of real people, read the terms, document your consent chain, and get legal advice before you generate anything intended for public distribution.

Score

Australian Fit gate: AU Fit = 2/5. A score of ⭐⭐⭐⭐⭐ Excellent requires AU Fit ≥ 4/5. This tool does not meet that threshold. See our Methodology.

Frequently asked questions

How much does Synthesys cost in Australian dollars?

Synthesys is priced in USD only. The Starter plan (formerly Indie) is approximately AUD $28–41 per month (depending on annual or monthly billing), Pro (formerly Studio) approximately AUD $57–83, Agency approximately AUD $116–167, and Max from about AUD $195, based on an AUD/USD rate of approximately 1.40. Figures are ex-GST: a GST-registered business that supplies its ABN is not charged GST on an imported digital service; other buyers add ~10%. on offshore digital services. Check with your tax adviser on GST treatment.

Is Synthesys data stored in Australia?

No. Synthesys is a London-based company (Nouveau Media Ltd) subject to UK data protection law and GDPR. Data is processed outside Australia on UK/EU infrastructure. No Australian data residency option is published. Organisations with Australian data governance obligations should clarify data handling with Synthesys before subscribing.

Can I clone someone's voice on Synthesys without their permission?

No. Synthesys's terms require that users have legal rights to any voice they clone on the platform. In Australia, cloning a person's voice or creating an AI likeness without documented consent can expose you to liability under the Privacy Act 1988 and the Australian Consumer Law. If the output is used in advertising, ACCC guidance on AI-actor disclosure also applies. Consent obligations sit with you, not Synthesys.

Sources

• Vendor page, re-read live 24 September 2026: synthesys.io/pricing — 200 — “Synthesys AI Pricing & Plans | From $29/mo”. That headline figure has not been re-checked against this review's table and is recorded here only as what the page's own title says today. (no Wayback capture — Save Page Now still refusing.)
• Synthesys pricing page — synthesys.io/pricing (primary, fetched 26 June 2026)
• Synthesys about page — synthesys.io/about (primary, fetched 26 June 2026)
• Synthesys ethics page — synthesys.io/ethics (primary, fetched 26 June 2026; last updated April 2026 per page)
• Synthesys privacy policy — synthesys.io/ai-privacy-policy (primary, fetched 26 June 2026)
• Nouveau Media Ltd company registration detail — UK address confirmed from synthesys.io footer
• Australian Privacy Act 1988
• ACCC guidance on AI in advertising

Exchange rate: US$1 ≈ A$1.40 as of September 2026. GST treatment not confirmed by vendor.

The AI Directory Australia is an independent editorial publication. We don't accept payment for positive reviews. Read our Methodology and Affiliate Disclosure.