Diffline: An agent's run as a live diff chart
Siren makes launch videos and ad creatives in your brand from one prompt, and posts them to X, LinkedIn and YouTube (TikTok with your OK on each post). One video is $9.99; plans are Spark $19, Pro $49 and Scale $149 a month, and Siren works inside Claude, Cursor and ChatGPT over MCP. Updated 7 Nov 2026.
Your agent's run as a live diff chart on a dark card. Every edit steps the added line up in green or the deleted line down in red, each file grows its own lane, and a pointer opens the code it just changed. The run finishes, the pill turns to Merged in your colour and the lanes fold into one bar.
This is one brand’s version. Yours gets your logo, colours, fonts, words and product screens, in the same motion.
Made for
- AI agents that change real work and can show it
- A release told as the edits behind it
- Products that would rather show what their agent did than say it
How you get yours
- Paste your site. Siren reads your logo, colours, fonts and what you sell.
- Say what the video is about. A launch, a feature, a price drop. One line is enough.
- Pay once and watch it render. One video is $9.99, no subscription. On a plan it is 25 credits.
Already use Claude, Cursor or ChatGPT? Ask your agent for it by name through the Siren MCP: make a Diffline video for our launch.
More ai and agents videos
a thousand voices, one signature
Make Diffline for your product
Paste your site, say what it is about, and Siren makes it in your brand.






