Cartesia Powers Multilingual Voice Interfaces Across Indian Financial Apps

Cartesia, the real-time text-to-speech and voice AI platform, partnered with Raise Financial Services to deploy conversational audio agents across Indian trading platforms, including Dhan, Millions, and fuzz. The deployment brings Cartesia's low-latency Sonic voice model into mobile financial environments to deliver voice interactions in multiple regional Indian languages. The integration targets retail investors who need spoken market updates, trade execution support, and portfolio summaries without relying solely on screen-based dashboards.

What's new

Raise Financial Services integrated Cartesia's state-space architecture into its mobile and web infrastructure to handle high-concurrency voice interactions. The technical rollout focuses on several specific capabilities:

• Sub-100ms latency: Cartesia's Sonic engine delivers low audio generation latency, letting conversational agents respond without noticeable delay during live market sessions.
• Multilingual Indian language coverage: The integration supports mixed-language inputs, including Indian English, Hindi, and regional dialects, accommodating code-switching common among Indian traders.
• Integration into live trading tools: The voice system connects directly to Raise products such as Dhan, turning written technical analysis, portfolio changes, and trade alerts into clear spoken audio.

How it fits your workflow

For audio producers, financial broadcasters, and multimedia creators covering global markets, this integration shows how low-latency text-to-speech is moving past static narration into live, event-driven audio feeds. Instead of pre-recording financial rundowns, studios and fintech creators can automate spoken financial news and podcast segments that update whenever tickers move. The ability to articulate Indian regional terminology cleanly solves a persistent pronunciation bottleneck in automated financial audio.

Compared to ElevenLabs Multilingual v2, which leads in emotive range for long-form voiceover and character dubbing, Cartesia Sonic emphasizes conversational speed and ultra-low time-to-first-audio. That makes it more practical for real-time applications where a delay breaks the illusion of dialogue, similar to Deepgram Aura or OpenAI's Realtime API. Creators producing localized YouTube shorts, automated financial briefings, or localized localized market audio can use Cartesia's API to build regionalized audio feeds that adapt on the fly.

What it costs / how to try it

Cartesia offers API access based on character usage, starting with a free tier for testing on its Sonic model family. Commercial deployments for high-volume conversational audio require custom enterprise routing, while individual builders can test Cartesia's multilingual voice library directly in the developer playground.