Big day 🔥 🚀 Introducing Dolphin AI - an agentic AI studio for complete video production. The story of Dolphin is very interesting. It didn’t start as a product. It started as an internal tool. We started with one question: Why does AI video still struggle the moment you ask https://t.co/JXfFnMaJ9g
AI in Development Tools launch history
Top AI in Development Tools launches from September 2026, ranked by X views.
September 2026

We’re excited to release Muse Spark 1.3 with improved performance on agentic and coding tasks, and a focus on real-world usability. Key capabilities: → Sustains longer-horizon work across multiple workflows in a single thread → More actively collaborates with users: it asks https://t.co/1GJUaFqrTZ
Introducing Keiki, the place to build customer facing AI agents for apps people already use. https://t.co/betRYuWzgm
Over the past two months we open-sourced a set of on-device audio models. The name is Audio8. The series can run on phones, PCs, and other hardware with limited compute and memory. You can use them for local inference right away. What’s included: ASR: 0.1B, 0.3B, 0.6B, 3B TTS: https://t.co/eWnEWmoA4H
Today we're announcing Mastra Factory! Most teams just want to build their product - not take on building and maintaining a factory too. So we're open-sourcing ours. Now you can own your factory without having to build it yourself. Demo: https://t.co/7fP6puHhM6