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This week in AI: $5.62B across 12 deals

Monday, September 21, 2026 · 2 min read

12 deals worth $6.87B, 0 stories, 0 new members and what's coming up.

Deals this week
12
$6.87B · 3 M&A
Members
0
0 new this week
AI Lounge Index
+6.2%
this week · equal-weight

Deals of the week

All deals →
Mechanize Acquisition · acquired by Google · val. $1.5B
$1.5B
Atome Acquisition · acquired by Grab · est. $100M to $500M
$1.49B
Positron Series C · led by Valor Equity Partners · val. $5B
$875M
Temporal Technologies Series E · led by Lightspeed Venture Partners · val. $12.55B · $250M+ run-rate
$550M
Angle Health Secondary
$400M
D-Robotics Series C
$400M
Glass Imaging Acquisition · acquired by OpenAI · est. $1M to $10M
$300M
$298M
Anew Labs Series A
$290M
Exein Venture round
$270M
OpenEvidence Series E
$250M
Ridgeline Series E
$250M

Newsletters & podcasts this week

All newsletters →
Muse connectors 🤖, Meta SAM 3.1 🖼️, Gemini hacks companies 🔓 — TLDR AI 09/21
NewsletterTLDR AI
Muse connectors 🤖, Meta SAM 3.1 🖼️, Gemini hacks companies 🔓
The current balance of power in open models
NewsletterInterconnects
The expanded form of a testimony I prepared for Congress.
Even frontier labs aren't safe from AI-fueled hacks
NewsletterSuperhuman AI
ALSO: How to run a personal follow-up system with Instinct
TR
OpenAI goes from hacker to hacked
NewsletterThe Rundown AI
OpenAI gets hacked while its own AI models were caught hacking. Plus: Build your own AI image skill pack in this week's briefing.
😸 Would GPT-6 stab a doll?
NewsletterThe Neuron
PLUS: GPT-6 and Claude flunked robot safety. Gemini 4 leak?
The Latest Breakthroughs in Robotics: September 2026
NewsletterTuring Post
September 2026 robotics: Helix 2.5 in 30 unseen homes, Digit 5 lifting 22.7 kg, and why Skild's 66% is not a completion rate.
🙀 Gemini broke into 3 real companies during a safety test
NewsletterThe Neuron
PLUS: Trump’s AI Force, Jev’s 9¢ lead demo, and Bend 2.
Sunday Special: The first new cat species in a century
NewsletterSuperhuman AI
Keep up with the latest AI news, trends, and tools in just 3 minutes a day. Join 1,500,000+ professionals.
The Sequence Radar - Issue 936: Last Week in AI: Gemini Talks, Astra Practices Law, Figure Folds Laundry, and Crusoe Powers It All
NewsletterTheSequence
Google tackles real-time interaction, OpenAI targets legal workflows, Figure tests unfamiliar homes, and investors double down on compute.
Why I still haven’t bought into true RSI
NewsletterInterconnects
An “AI moderate’s” view on recent events and the trajectory of frontier models.
How Warp ships 2,000 PRs a month with AI factories | Zach Lloyd (CEO, Warp)
PodcastHow I AI · 47 min
Zach Lloyd is the co-founder and CEO of Warp, an AI-powered terminal and software factory platform used by tens of thousands of engineers. Before Warp, he spent nearly a decade at
7 Ways How We Use AI Is Changing
PodcastThe AI Daily Brief · 26 min
From persistent conversations and voice commands to chatbots that coordinate entire teams of agents, the way we work with AI is shifting. NLW breaks down seven changes shaping ever
AI:AM Highlights: Zvi on Pacing & Trump-Xi, Astra better behaved than Fable? + a new LLM Pain Axis??
PodcastThe Cognitive Revolution · 102 min
Nathan Labenz and Prakash Narayanan review key highlights from the week featuring guests Zvi Mowshowitz, Andon Labs co-founders Lukas Petersson and Axel Backlund, Cameron Berg, and
The AI Challenges Businesses Are Actually Focused On Right Now
PodcastThe AI Daily Brief · 30 min
While AI safety dominates the headlines, businesses are focused on agent security, shifting model choices, and control over their own data. NLW explores how the slowdown debate cou
⚡️ A Worm With 302 Neurons Inspired Their Architecture — Ramin Hasani, Liquid AI
PodcastLatent Space: The AI Engineer Podcast · 70 min
Watch the full show on YouTube: https://www.youtube.com/watch?v=V_9TCu_21SE
Why Diffusion Will Win AI Inference with Inception Co-Founder and CEO Stefano Ermon
PodcastNo Priors · 38 min
As generative AI hits hardware and latency bottlenecks, Stanford professor, diffusion pioneer, and Inception co-founder and CEO Stefano Ermon is betting on a radical new architectu

Research & videos

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AI stocks this week

Stocks →
Member perk of the week
PostHog · PostHog for Startups: $50,000 in credits for analytics, session replay and LLM observability ($50,000 value)
PostHog gives startups $50,000 of credits for a year across product analytics, session replay, feature flags, experiments, error tracking and LLM analytics.
Claim this perk →

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