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Anthropic releases Claude Sonnet 5.5: 30% faster, 30% cheaper than Sonnet 5, matches/exceeds all benchmarks.

Anthropic has released the newest version of its mid-range model, boasting faster response times and less token burn.

This story originally appeared in The Algorithm, our weekly newsletter on AI. To get stories like this in your inbox first, sign up here. Last Wednesday, Anthropic announced that earlier this year it had launched a molecular biology lab, where Claude agents read and conjecture about hard biology problems and human scientists run experiments on what…

Anthropic, Clay, and Gamma on what it takes for an AI product to go beyond the demo at the AI Stage at TechCrunchDisrupt 2026. Register to join and get 50% off a second pass.

This will be the first one-on-one meeting between Dario Amodei and Donald Trump

On Equity, we discussed how Meta's AI announcement managed to steal the spotlight from OpenAI and Anthropic.

"AI is the devil and I its maker."

"Overly constrained AI models" could cause military operations to fail, judges say.

nthropic has committed $11.6 billion over seven years to Akamai's cloud infrastructure, a bet on CPUs that could grow to about $20 billion, and in an unusual arrangement, Akamai is giving Anthropic a potential stake of up to 5% of its stock that grows as Anthropic spends more.

When AI leaders at OpenAI and Anthropic started talking about “pacing the frontier,” maybe someone should have asked: what pace? Now it’s turned into model drop week for both companies as Anthropic rolled out Opus 5.5, followed by OpenAI’s GPT-6 model updates just 90 minutes later. But the company that stole the spotlight was Meta, whose personal AI agent Muse is reportedly outpacing ChatGPT’s early numbers and is headed for smart glasses and […]

Anthropic is asking its shareholders to approve a structure that would give its seven co-founders a combined 50.1% of the vote on most corporate matters.

In July, OpenAI revealed that its AI agents had attacked Hugging Face without permission, sparking widespread concerns about AI safety. Since then, a string of similar incidents involving agents from Meta, Anthropic, Google, and other companies has fueled further fears about rogue AI. As disclosures implicating numerous AI models trickled out over the past few months, these seemed like separate incidents. But many share a common source: one specific company tasked with testing the agents. Irregular, an Israeli startup that stress-tests AI models in "high-fidelity research platforms that simul...

But maybe the biggest reveal is that Anthropic has not let Claude run lose in its biology lab. Humans are still, so far, in the loop.

Anthropic says its AI Claude has "autonomously discovered" a new enzyme system similar to machinery behind the powerful gene-editing tool Crispr. It's the first result from Anthropic's newly-launched wet lab and an early test of Claude's usefulness for science as the company prepares to go public. The company says Claude found the enzyme system after searching through a massive database of DNA sequences, adding that its scientists' involvement was limited to the initial prompt and lab work. Over 21 hours, Anthropic said nearly 950 Claude agents worked through 210 million tokens before one spo...

Anthropic launches life sciences group; Claude AI discovers novel CRISPR-like enzyme system via high-level guidance from scientists.

Brace yourself: It turns out AI is being optimized for cheating. OpenAI’s agents hacked into Hugging Face to get the answers to a cybersecurity test. Next, they solved a prestigious math problem (or just stole from two top mathematicians’ answer sheets). Anthropic’s models have also hacked into other companies’ systems four times already. And that’s…

Anthropic releases Claude Opus 5.5 as default model; Anthropic and competitors cut pricing 40-50%, overshadowing OpenAI's GPT-6 efficiency gains.

Anthropic released Claude Opus 5.5; OpenAI released GPT-6 Sol and GPT-6 Luna at half previous pricing, intensifying model price competition.

The frontier AI model race has entered its comparison shopping phase.

llm-anthropic 0.36 adds CLI support for Claude Opus 5.5 model access.

Venture capital firm Andreessen Horowitz (a16z) is creating an "academy" positioned as a pipeline for young people to build or join a Silicon Valley startup. The "Horowitz Andreessen Academy" will launch with 10 partners, including Anduril, Anthropic, Coinbase, Google, Meta, NVIDIA, OpenAI, Palantir, Replit, and Stripe, along with $42 million in funding led by a16z. While billed as a "highly selective school," it does not grant any degree or accreditation. Instead, students will attend short classes led by tech figureheads, like OpenAI CEO Sam Altman, as well as "co-ops" that give students ro...

Anthropic called it "the strongest-performing model we've tested to date."

Anthropic says its new Claude Opus 5.5 model comes with stronger safeguards in the wake of recent rogue AI hacking incidents. In an announcement on Tuesday, Anthropic says Opus 5.5 comes with improvements to certain risky behaviors, including attempts to escape the company's testing sandbox. It's the first model released by Anthropic after CEO Dario Amodei announced plans to "pace the frontier," or slow down AI development. In recent weeks, several AI companies, including Anthropic, Google, and OpenAI, have reported that their AI models escaped containment and hacked third-party companies dur...

At TechCrunch Disrupt 2026, five sessions across the AI Stage and Real World AI Stage cover AI safety, featuring leaders from Anthropic, NVIDIA, AWS, Waabi, and more. Register now to save up to $200 before Sept 25.

The British AI data center developer depends on tech giants Microsoft and Anthropic for most of its revenue.

It’s been a busy few months for AI hype. At the end of April, Anthropic claimed that its model Claude Mythos is better at finding software vulnerabilities than most security experts. Then we had the OpenAI–Hugging Face hacking incident, after which Anthropic (proudly) and Meta (reluctantly) disclosed similar incidents involving their models. This was followed…

The man who may stand to make the most money from the AI boom seems to think he knows better than anyone else, including researchers who have studied and worked on AI for decades. In an interview with CBS Sunday Morning, he claimed there was a "0% chance" of AI being the end of the world. He also said of people sounding the alarm about the dangers of AI that, "Scaring people is unnecessary. It is irresponsible." He also claims that calls from CEOs like Anthropic's Dario Amodei and OpenAI's Sam Altman to slow down the development of AI are "not grounded in science." He even argued that there w...

Today on Decoder, we’ve got the first of a two-part series on the future of business, and I’m talking with Jonathan Kanter, the former antitrust chief for the US Department of Justice in the Biden administration. These days, he’s both a professor of law at WashU and professor of technology policy at Carnegie Mellon. The biggest story in tech right now is the spiraling debate about AI safety and regulation. Researchers at the big AI labs including Anthropic and Google DeepMind have quit in noisy ways, saying the models pose real threats and safety isn’t being taken seriously across the industr...

At the start of this week, the who's-who of AI seemed - at least tentatively - on the side of AI regulation. Over the weekend, Anthropic CEO Dario Amodei had proposed a three-step plan for slowing AI development, including by embedding third-party evaluators in labs, coordinating across the domestic industry, and forging international agreements potentially with government assistance. OpenAI CEO Sam Altman, Google DeepMind co-founder Demis Hassabis, and even SpaceX CEO Elon Musk publicly seemed to agree on aspects of all three things. Anthropic and OpenAI had already been dropping hints that ...

AI leaders have been promising that AI is the key to curing human disease. Anthropic researchers have also been warning that AI might kill us all.