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Cartesia claims its AI is efficient enough to run pretty much anywhere | TechCrunch

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State space models (SSMs) are a newer, highly efficient model architecture that can handle large amounts of data at once.

SSMs compress every prior data point into a sort of summary of everything they’ve seen before.

Cartesia co-founder Karan Goel says SSMs give AI something like a working memory, making the models faster and potentially more efficient.

The company's latest project, Sonic , is an SSM that can clone a person’s voice.

Cartesia ’s API is free for up to 100,000 characters read aloud, with the most expensive plan at $ 299 per month for 8 million characters.

The company closed a $22 million funding round led by Index Ventures , bringing the startup's total raised to $27 million .

Goel says that “ hundreds ” of customers are paying for Sonic API access.