Top startup launches for September 2026

232 top startup and company launches for September 2026, ranked by verified X views on Launch Archive.

232 launches
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Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5. https://t.co/Q9C2VKQ79f

Sep 22, 2026
Views28.16M
Comments3.34k
Reposts9.04k
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We’re inviting one Grok Bot user to a Starship launch. You could win the invite by sharing the ways you've integrated @Bot into your work. The invite includes a plus one. How to submit and some examples we love: https://t.co/t2Mpn7v0bj

Sep 15, 2026
Views26.31M
Comments1.59k
Reposts1.02k
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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

Sep 29, 2026
Views22.98M
Comments203
Reposts467
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Introducing Team Bots, shared AI teammates that learn as your team works with them. Give your Team Bot the skills, plugins, and credentials it needs for its role, then work with it in Slack or Grok Bot. https://t.co/73RrG4xpaU

Sep 28, 2026
Views22.81M
Comments377
Reposts568
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Astra for Law: Frontier intelligence built for your practice. A new offering powered by GPT-6 Astra with tools, settings, and context to support the expertise and judgment of lawyers and legal technology firms. https://t.co/qxVRXkvp4o

Sep 17, 2026
Views15.92M
Comments1.08k
Reposts1.79k
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Now available: ChatGPT for Financial Services. This is a tailored ChatGPT Work experience that combines built-in financial data with GPT-6 Astra’s reasoning. Teams can develop research, build financial models, and create customized client materials. https://t.co/6WP5OJdnE8 https://t.co/AundGG3jtc

Sep 10, 2026
Views15.64M
Comments991
Reposts2.60k
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Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work. https://t.co/UvXD8mDTF1

Sep 28, 2026
Views12.73M
Comments1.97k
Reposts4.47k
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Introducing Atlas: The world's first multimodal world model that generates image and video frames with pixel-perfect camera control and reconstructs them in 3D. Model the world, move the camera, and simulate space & time. https://t.co/o0qeGubi19

Sep 1, 2026
Views10.84M
Comments776
Reposts3.49k
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Today we’re introducing Gemini 4 Argon. It delivers frontier performance in complex workflows across real-world software engineering, knowledge work, and cybersecurity defense with an industry-leading 1M token output limit. https://t.co/oDaCoOLu5E

Sep 30, 2026
Views9.72M
Comments1.71k
Reposts4.82k
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ChatGPT Images 2.5—faster, sharper, smarter, with better tools for creating whatever you can dream of. - Faster image generation to keep your ideas flowing - Improved fidelity for more natural, recognizable images - Consistent details across multiple edits - Comment-based https://t.co/SjHITKJUSV

Sep 8, 2026
Views8.14M
Comments940
Reposts2.56k
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Introducing Muse, your personal AI agent from Meta that gets things done across every part of life. Download the Muse app and get started: https://t.co/KBjYWfshGo https://t.co/1exp56xj93

Sep 8, 2026
Views7.93M
Comments1.55k
Reposts1.19k
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GPT-Live-1 is now available in the API. Bring ChatGPT’s natural back-and-forth to your app, with voice agents that listen while they speak and work with the models and harness you choose. https://t.co/gIl1gwsBDV

Sep 10, 2026
Views7.44M
Comments569
Reposts1.46k
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The Boring Company is pleased to announce our Series D funding round of $3 billion, led by the United Arab Emirates. The financing now values The Boring Company at $23 billion. Other key investors in the round include Human Capital, Vy Capital, Valor Equity Partners, Sequoia https://t.co/6rM8s6aleO

Sep 9, 2026
Views6.58M
Comments591
Reposts910
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Introducing Ato, your grandparent’s next computer. Over the past year, more than 2,500 older adults around the globe have used Ato in their daily lives through our beta program, and today we're taking our next step. Ato helps seniors stay independent on their own terms. It https://t.co/B7aHSoRQ9Q

Sep 2, 2026
Views3.63M
Comments370
Reposts609
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Today we’re releasing Helix 2.5 We rented 30 homes in the Bay Area. The robots arrived with no additional training and started doing useful work https://t.co/VzrXGYOCKt

Sep 17, 2026
Views3.43M
Comments902
Reposts1.47k
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ChatGPT can now do motion design in After Effects. Introducing Higgsfield AI Motion Designer. Our ChatGPT plugin understands animation principles, writes expressions, and retains context in your After Effects projects. Try Higgsfield’s ChatGPT plugin now in After Effects. https://t.co/G1Jpc4saW5

Sep 11, 2026
Views3.26M
Comments289
Reposts605
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