Tech

X enthusiast and Reddit shareholder Sam Altman had an epiphany on Monday: Bots have made it impossible to determine whether social media posts are really written by humans, he posted. The realization came while reading (and sharing) some posts from the r/Claudecode subreddit, which were praising OpenAI Codex. OpenAI launched …

Nuclear startup Deep Fission announced Monday that it has gone public in a reverse merger, netting the company $30 million. No, it’s not 2021. The startup is proposing to build small, cylindrical nuclear power plants and lower them into 30-inch diameter holes drilled one mile down into the Earth. By …

Social networking startup Bluesky is rolling out one of users’ most in-demand features — no, not an edit button! — bookmarks. The company on Monday announced the new addition, which it calls Saved Posts. The feature is accessible through a new bookmark icon underneath each post, next to the heart …

Google is expanding AI Mode — its AI-powered Search experience — to five new languages, opening access to additional users around the world, after being limited to English for over six months. On Monday, Google announced that AI Mode will now support Hindi, Indonesian, Japanese, Korean, and Brazilian Portuguese. The …

One of the biggest questions facing founders today: How do you keep building when the rules won’t stop shifting? At TechCrunch Disrupt 2025, where we celebrate TechCrunch’s 20th anniversary from October 27-29 at Moscone West in San Francisco, we’ll hear firsthand from Ryan Petersen, founder and CEO of Flexport, on …

The corporate aviation world tired Bianca Cefalo to the point that she found it easier to literally start her own space company and launch objects into orbit.  Cefalo is the founder of Space DOTs, which launched in 2022 to detect space threats. She and her team have created a software …

Venture capital firm Insight Partners says it has completed notifying a number of individuals, including the firm’s limited partners, whose personal information was stolen by hackers in a January data breach.  In a statement late last week, the company said it completed its review in August following the data breach, …

Cognition AI, the startup behind AI coding agent Devin, has hit a $10.2 billion valuation after raising $400 million, marking a jump from the company’s $4 billion valuation earlier this year, reports Bloomberg.  Founders Fund, the Peter Thiel-backed VC, led Cognition’s latest round, with participation from existing investors like Lux …

AI needs a better brain — and Edo Liberty is building it. At TechCrunch Disrupt 2025, happening October 27–29 at Moscone West in San Francisco, Pinecone founder and CEO Edo Liberty will explain why the next wave of AI-native apps won’t be driven by bigger models, but by smarter search. …

Privacy-focused messaging app Signal announced on Monday that it’s introducing a feature that allows users to back up their text conversations for free, along with the last 45 days of media. It’s also debuting its first paid feature by offering full media backups with up to 100GB of storage. Historically, …