AI chip startup Positron is in discussions to raise roughly $750 million in financing at a valuation of about $5 billion, according to Bloomberg and the Financial Post. The funding talks involve a single fundraising round structured in two phases, though the reports do not specify the timing of each phase or the identities of potential investors. Positron’s effort is described as part of a broader wave of companies seeking to compete with Nvidia in the market for AI chips. The coverage is focused on the scale of the planned financing and the valuation target rather than on Positron’s technology details, production status, or customer partnerships. Both outlets characterize the fundraising as aimed at supporting growth in a competitive landscape dominated by Nvidia. The reports do not indicate whether the talks are already finalized or when they would be completed, and the figures cited reflect the amount under discussion rather than a confirmed amount.