OpenAI said Wednesday it was working to fix an outage after its popular ChatGPT assistant and Sora video generator were left inaccessible.

“We have identified the issue and are working to roll out a fix,” OpenAI said in a post on X.

Earlier this month, OpenAI CEO Sam Altman said the company’s technology was reaching 300 million active users each week. Earlier on Wednesday, Apple released new versions of its software for the iPhone, iPad and Mac that bring integrations with ChatGPT.

ChatGPT has been down for over three hours. An outage in June lasted for over five hours.

OpenAI was valued at $157 billion in a funding round in October that included participation from existing backer Microsoft as well as chipmaker Nvidia. The company’s rapid ascent began with the launch of ChatGPT in late 2022 and has been the biggest story in the tech industry over the last couple years.

On Monday OpenAI said it was releasing Sora to people in the U.S. and most other countries, but on Tuesday, Altman wrote on X that “we significantly underestimated demand for sora; it is going to take awhile to get everyone access.”

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ServiceTitan, a provider of cloud software to contractors, priced its IPO at $71 a share on Wednesday, above the expected range.

The company is set to debut on the Nasdaq on Thursday under ticker symbol “TTAN.” ServiceTitan previously raised its price range to between $65 and $67.

ServiceTitan sold 8.8 million shares in the offering, which would amount to a raise of almost $625 million. At the IPO price, ServiceTitan is worth about $6.3 billion.

Technology IPOs have been sparse since late 2021, when inflation and rising interest rates pushed investors out of riskier assets. Cloud software stocks quickly went out of favor after remote work during the pandemic had accelerated their growth.

In March of this year, social network Reddit went public, followed by data management company Rubrik the following month. In September, less than two weeks after the Federal Reserve lowered its benchmark rate for the first time since 2020, chipmaker Cerebras filed for an IPO. However, the company has yet to debut on the market.

ServiceTitan, based in Glendale, California, filed to go public on Nov. 18. The company has said some proceeds would go toward redeeming all outstanding shares of its non-convertible preferred stock. It had issued that stock in 2022 to repay loans to finance the $577 million acquisition of pest control software provider FieldRoutes.

While raising money in 2022, ServiceTitan agreed to “compounding ratchet” terms that encourage the company to quickly go public and prevent unnecessary dilution, according to an analysis from venture firm Meritech Capital.

Bessemer Venture Partners, TPG and Iconiq are among the company’s top shareholders, alongside founders Vahe Kuzoyan and Ara Mahdessian.

Mahdessian’s father had a contracting business, and Kuzoyan’s father dealt in plumbing, according to the Los Angeles Times. The founders said in a pre-recorded IPO roadshow that they saw technology as a way to modernize their family businesses. Their software can help with marketing, sales, scheduling and customer service.

ServiceTitan’s preliminary results for the October quarter show a net loss of about $47 million on $198.5 million in revenue. That suggests approximately 24% year-over-year revenue growth, the highest rate since mid-2023. But the company’s net loss widened from around $40 million in the October quarter last year.

WATCH: Many tech companies have effectively completed IPOs as private businesses, says Mitchell Green

Meta’s family of apps including Facebook and Instagram were down on Wednesday, resulting in users being unable to access the services.

The widespread outages began around 9:57 a.m. PST and affected the social media company’s core apps as well as Threads, WhatsApp and Messenger, according to user-submitted reports gathered by the internet-monitoring site Downdetector.

More than 100,000 users experienced problems using the Facebook service at 10:11 a.m. PST, representing the peak of the outages, according to Downdetector.

Meta acknowledged the outage via a post on social media site X, saying =the company is “aware that a technical issue is impacting some users’ ability to access our apps.”

“We’re working to get things back to normal as quickly as possible and apologize for any inconvenience,” the X post said.

A separate Instagram-specific X post also acknowledged the outage, and said the company recognizes “there’s a technical issue impacting some people’s ability to access Instagram.”

Meta’s various apps experienced a roughly two-hour outage in March 2024, on the same day as the Super Tuesday U.S. presidential primaries.