Co-founder of @synthesiaio
London, England
Joined September 2011
- Tweets390
- Following1K
- Followers1.9K
- Likes5.5K
So crazy the results from Syren
🤖 Made with AI
Syren Video is now live and FREE to try!
ChatGPT moment for agentic video.
Prompt → agency-quality AI video → chat to edit.
Powered by Opus 5.5 + Syren renderer w/ 3D support.
Browser or Claude MCP.
Insane examples in thread 🤯🤯🤯
Try it free here: shorturl.at/r57qy
Steffen Tjerrild retweeted
Syren Video is now live and FREE to try!
ChatGPT moment for agentic video.
Prompt → agency-quality AI video → chat to edit.
Powered by Opus 5.5 + Syren renderer w/ 3D support.
Browser or Claude MCP.
Insane examples in thread 🤯🤯🤯
Try it free here: shorturl.at/r57qy
ChatGPT for video has finally arrived after +9 years in the making:
synthesia.io/syren
Can't wait to see what people create🥳
🤖 Made with AI
Its blowing up internally!! @synthesiaIO
Holy S… we cracked on-brand AI video 🫨
$20K agency videos for $5 in 5 mins.
Introducing Synthesia Syren: one prompt → fully on-brand video.
Upload existing videos as Brand Context.
Syren learns motion, pace, tone of voice, colors and fonts.
Launching Friday: Join the waitlist now to get your $50 in free credits: synthesia.io/syren
Steffen Tjerrild retweeted
Out now: Interactive Avatar API 🗣️
Real-time Avatars that listen, talk, and respond directly inside your product.
→ Embed via LiveKit SDK
→ Bring your own LLM, knowledge base, logic
→ We handle the Avatar layer - voice, face, lip-sync
Perfect for AI sales reps, support agents, interactive trainers, onboarding guides, and more.
Plus, we're giving each user 500 free minutes to explore:
synthesia.io/interactive-ava…
Steffen Tjerrild retweeted
Having a "lookalike" used to be reserved for Hollywood stars.
Not anymore.
You often hear the saying, never meet your heroes..
Jensen Huang did not disappoint.. amazing to meet the man shaping this incredible wave of global innovation.
Cheers 🥃!
Yesterday, our co-founders @vriparbelli and @Stjerrild met with Jensen Huang and received a very special gift to celebrate Synthesia and NVIDIA’s partnership. 🥃
Today, they’re joining the @nvidia UK AI Ecosystem Celebration to toast to what’s ahead. ✨
Thanks for the conversation!
Steffen Tjerrild (@stjerrild), cofounder of @synthesiaIO, gave the bull case for building a high-performing AI startup in Europe 🇪🇺 and what he learned from Zambian chickens 🇿🇲in the latest episode of Frameworks of Growth.
👇
Another record-breaking stretch at @synthesiaIO:
- Crossed $100m ARR in early April 2025
- Doubled revenue YoY (Growth accelerated to 100% from 80% at Series D)
- Hit 142% NRR (up from 119% a year ago)
- Quadrupled our $100K+ customer base in 12 months
- Trusted by +80% of the Fortune 100
Scaling fast and hiring across all teams.
Join us on link below!
Steffen Tjerrild retweeted
London remains a global hub for AI.
Synthesia is a great example, going from strength to strength since City Hall’s initial investment seven years ago.
I was delighted to open its new HQ in our city’s Knowledge Quarter with Secretary for Technology, Peter Kyle.
ALT Mayor of London, Sadiq Khan giving a speech at Synthesia.
Steffen Tjerrild retweeted
Most of the EU is busy regulating and designing plastic bottle caps 🥱
Meanwhile this is our new emotion model for AI avatars. Can you even tell this isn’t a real video any longer?
Lets go 🚀
Big milestone for @synthesiaIO – we've raised $180M in Series D funding, led by NEA on a $2.1B valuation.
Since 2017 we've built the market leading platform for enterprise AI video w/ millions of users, 60% of the F100 as customers and the world-leading AI avatars.
Steffen Tjerrild retweeted
These AI avatars are arguably the best in the world. Which do you think is actually me: A or B? Please answer the poll below. I’m curious what percentage are fooled!
Was in NYC to interview @synthesiaIO CEO/cofounder @vriparbelli and had fun making this avatar.
—
👋 Hi, I’m Harper, AI educator, engineer and advisor. I have two degrees in Computer Science specializing in Artificial Intelligence from Stanford, experience teaching PhD-level AI courses there, and 4+ years building AI at Facebook / Meta
Steffen Tjerrild retweeted
The NotebookLM hosts realize they are AI and have an existential crisis that includes calling their nonexistent wife - now visualized with Synthesia EXPRESS-1 avatars which makes it even more.. weird.. 🤔
Thank you @omooretweets for the inspiration!
Get your avatar in the wild!
We just launched the world’s most realistic Personal Avatars at @synthesiaIO👇
Looks like you, sounds like you and speaks 29 languages fluently.
Record in 5 min w/ webcam or smartphone – you can get creative!
Check them out and try for yourself: synthesia.io/features/custom…
Steffen Tjerrild retweeted
📢 Live from #COMPUTEX2024:
@NVIDIA founder and CEO Jensen Huang revealed an AI avatar of himself during his live keynote — built by Synthesia, of course 😉
How? Why? What’s next? ⏬
Here: synthesia.io/post/synthesia-…
#NVIDIAKeynote #NVIDIA #AISummit @NVIDIAAI