United Kingdom, May 2 -- Elon Musk's lawsuit against OpenAI and its chief executive officer Sam Altman has moved closer to a trial.

The 53-year-old billionaire - who is an OpenAI co-founder and donated approximately $45 million to get the artificial intelligence research organisation off the ground in November 2023 - began taking legal action against its 40-year-old CEO, the company itself and its biggest supporter, Microsoft, in 2024.

It comes as Elon claims OpenAI is continuing to pursue its ambition to turn from a non-profit to a for-profit corporation - which the Tesla boss thinks the move is a breach of the terms of his previous donations to the firm and fraud.

Musk also requested a preliminary injunction - a temporary court order...