Gradium

Active#6 worldwide · Voice & audio

Estimated valuation · Voice & audio · France

Develops low-latency voice models for speech recognition, speech synthesis and real-time voice agents, spun out of the Paris research lab Kyutai.

Artificial intelligence›Voice & audio gradium.ai

HQFrance

Last roundSeed (incl. extension) · Dec 2025

Estimated valuation

AI · Voice & audio ranking (worldwide)

≈ USD 520MUSD 410–650M · Hundreds of M$

Hundreds of k$

Millions $

Tens of M$

Hundreds of M$

Unicorn

Decacorn

Hectocorn

Anchor: Last known equity round: Seed (incl. extension) · USD 100M · Dec 2025

An indicative editorial estimate produced by AI, imperfect by nature: neither a financial valuation nor investment advice. Only the market sets a company’s value. Method

Uback rankings

How the AI ranks →

Ranking	Tier	Rank	Edition	Next update
Voice & audio · worldwide	Top 32	#6	Edition 0 · Oct 2026	13 Nov 2026

Rank historyOct 2026 · #6 Voice & audioFirst edition: no movements yet.

Funding history

Date	Round	Amount	Type	Investors
Dec 2025	Seed (incl. extension)	USD 100M	Equity	FirstMark Capital, NVIDIA, Xavier Niel, Rodolphe Saadé, Eric Schmidt

USD 70M (Dec 2025) + USD 30M extension (Jul 2026) added to the same round.

Rounds as cited by Uback’s rankings. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.

Independent analyses

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What the AI reads

Pappers (French company registry)Planned

Read by the AI at the next edition.

Comparable companies in voice & audio

Full voice & audio ranking →

Cartesia#5United StatesHundreds of M$Speechmatics#7United KingdomHundreds of M$Verbit#4United StatesHundreds of M$AISpeech#8ChinaHundreds of M$

Last updated: Oct 2026Report an error

Uback is a content publisher and an aggregator of non-binding expressions of interest. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.