After the abrupt termination of co-founder Sam Altman, the CEO of OpenAI has vowed to resign and join Microsoft.

The OpenAI team stated that they will follow Altman, who announced that he would be launching an artificial intelligence (AI) subsidiary at Microsoft following his unexpected departure from the business that invented the ChatGPT chatbot, which led to the rapid increase in AI technology.

Some of OpenAI’s most senior employees threatened to leave the company in a letter if the board was not replaced.

The process through which you terminated Sam Altman and removed [co-founder and former president] Greg Brockman from the board has jeopardized all of this work and undermined our mission and company,” the letter, first released to the technology news outlet Wired, reads.

“Your conduct has made it clear you did not have the competence to oversee OpenAI”.

“Microsoft has assured us that there are positions for all OpenAI employees at this new subsidiary should we choose to join.”

The letter was signed by up to 500 of OpenAI’s 770 employees, according to reports.

The board of directors fired Sam Altman on Friday, citing concerns that he was underestimating the risks of the company’s technology and steering it away from its declared objective.

Emmett Shear, a former CEO of Amazon’s streaming site Twitch, was named OpenAI’s third CEO in as many days.

Shear rejected allegations that Sam Atlman was fired owing to safety issues in a post on X announcing his appointment as temporary CEO.

However, Sam Altman’s departure prompted the departure of other high-profile members of the company, as well as criticism from investors who demanded that he be reinstated.

OpenAI, on the other hand, stayed firm in their decision.

In a memo sent to employees on Sunday night, the company said, “Sam’s behavior and lack of transparency … undermined the board’s ability to effectively supervise the company,” the New York Times reported.

Microsoft CEO Satya Nadella wrote on X that Altman “will be joining Microsoft to lead a new advanced AI research team”, along with Open AI co-founder Brockman, who announced he would be leaving the company following Altman’s departure.

Nadella added that Microsoft was looking forward to working with OpenAI’s new team under Shear and that they remain “committed to our partnership with OpenAI

Later on Monday ,Sam Altman stated on X that his and Nadella’s “top priority remains to ensure OpenAI continues to thrive.”

Microsoft has invested more than $10 billion in OpenAI and has incorporated the AI pioneer’s technology into its products.