The Anthropic office situation is notable less because a strike has actually happened and more because the company is taking precautionary action before one has been called.
What happened
Anthropic temporarily asked San Francisco employees to work from home on Monday and Tuesday after its security contractor, Allied Universal, warned of a possible walkout.
However, there is no confirmed strike at Anthropic:
Allied Universal provides security staff at Anthropic's offices.
Those workers are represented by the SEIU.
Contract negotiations in California have been ongoing since April, focusing on pay, healthcare and training.
SEIU says it has not authorised a strike vote or announced strike action for this week.
Allied Universal likewise hasn't confirmed that its workers will strike.
So Anthropic is essentially acting on a potential disruption to building security, rather than responding to an actual walkout.
Why Anthropic is being cautious
For a rapidly expanding AI company, physical security has become a bigger concern. Anthropic, like OpenAI, has attracted enormous attention because of its technology, employees and competitive position.
The precaution is also interesting because Anthropic normally operates a hybrid workplace, with job postings generally requiring employees to spend at least 25% of their working time in the office. Temporarily shutting San Francisco staff out of the workplace therefore represents a meaningful change to its normal routine.
The bigger picture
The labour dispute comes at an especially consequential moment for Anthropic. The Claude maker is competing aggressively with OpenAI and Google for employees, customers and capital, while reportedly preparing for a potential public listing.
One important distinction is worth keeping in mind: secondary-market transactions implying a $1.5 trillion valuation are not the same thing as an official company valuation. The former reflects what investors may be willing to pay for shares in private transactions; it doesn't establish that Anthropic itself is currently valued at that amount.
In short, this isn't an Anthropic strike story yet. It's a story about an AI company deciding that the possibility of losing its contracted security coverage is serious enough to keep employees away from the office before anything actually happens.
If you’re tracking the AI industry, the more consequential development to watch here is whether Anthropic’s security dispute escalates—and whether it has any effect on the company’s reported IPO plans.
