Mistral AI raises about €385 million in its Series A

Background

Mistral AI raised 105 million euros in June, a month after the company was set up ^[3]. Reuters described the round that followed in December as the company's second funding round in seven months ^[3]. The company labels that second round its Series A, even though it was the second raise it had announced in a short period ^[1][2][3].

The announcement

Mistral AI dates its Series A to 11 December 2023, the same day it announced Mixtral 8x7B and opened its API platform ^[1][2]. The company's own timeline lists that date as its Series A ^[1]. Funding news, a model release and the opening of a developer platform therefore arrived together rather than as separate announcements ^[1][2].

How large the round was, and who took part

Wikipedia reports the round at 385 million euros, about 428 million dollars, with investors including Andreessen Horowitz, BNP Paribas and Salesforce ^[2]. Reuters reported the same 385 million euro figure and said the round was led by investors such as Andreessen Horowitz and LightSpeed Ventures ^[3]. The two accounts name overlapping but not identical groups of investors, and they frame participation differently — one as a list of investors, the other as lead investors — while agreeing on the amount raised ^[2][3].

Valuation

Wikipedia states that the round valued Mistral AI at more than 2 billion euros ^[2]. Reuters, citing a source familiar with the matter, put the valuation at 2 billion euros and noted that the company did not disclose it ^[3]. That distinction is worth keeping in mind when reading coverage of private companies: a valuation is often reported from people close to a deal rather than confirmed by the company itself. Here the two figures also differ slightly in framing — "more than 2 billion" in one account, "2 billion" in the other ^[2][3].

Released alongside the round

On the same day, Mistral released the proprietary Mistral Medium model on its La Plateforme API ^[2]. An API platform is the layer through which outside developers call a model over the network, usually under the provider's terms of access; a model offered there can be used without the model files themselves being distributed.

What the date marks

For anyone reconstructing Mistral's early history, 11 December 2023 bundles three events into one date: the close of a second funding round, the arrival of Mixtral 8x7B, and the opening of the company's API platform ^[1][2]. Mistral's own timeline uses the date as its Series A ^[1], and the 385 million euro figure Reuters reported matches the sum given in other accounts ^[2][3].

Reading the numbers side by side

The amount is the steadiest part of the story: both the encyclopedic account and the wire report give 385 million euros ^[2][3]. The investor list is where the accounts diverge, and the valuation is where sourcing matters most, since one version rests on a person familiar with the matter and the other is stated flatly ^[2][3]. Read together, they show how a single funding announcement turns into a set of slightly different public records — which is why the same round can appear as "about 428 million dollars" in one place and as a euro figure in another ^[2][3].