Zest AI vs ElevenLabs
Side-by-side comparison of AI visibility scores, market position, and capabilities
AI lending intelligence platform. Nearly 300 lenders. 650+ proprietary models, 50 patents. Raised ~$554M ($200M from Insight Partners). Founded 2009, Burbank CA. Private.
About
Zest AI is an AI-powered lending intelligence platform founded in 2009 and headquartered in Los Angeles. The company was founded by former Google engineers and data scientists who saw that traditional credit underwriting — relying on thin FICO score inputs and rule-based scorecards developed in a pre-big-data era — was systematically excluding creditworthy borrowers and leaving billions in loan volume on the table for lenders. Zest AI's mission is to make lending fairer and more profitable simultaneously, by applying machine learning to the full spectrum of available credit data.\n\nThe platform provides AI-driven credit underwriting models that lenders deploy to augment or replace traditional scorecards at the point of loan decisioning. Zest's models ingest hundreds of variables that conventional scorecards ignore, producing more accurate risk predictions that allow lenders to approve more borrowers at the same loss rates — or achieve lower loss rates on the same approval volumes. The company has developed more than 650 proprietary models and holds 50 patents in AI credit underwriting. Zest integrates with major loan origination systems and serves nearly 300 lenders including credit unions, community banks, and consumer finance companies across auto, personal, and small business lending.\n\nZest AI has raised approximately $554 million in total funding, including $200 million from Insight Partners, reflecting the scale of the addressable opportunity in AI-enabled credit decisioning. The company's long operating history since 2009, its proprietary model library, and its documented evidence of bias reduction in lending outcomes position it as the most established AI underwriting platform in the market, with a meaningful head start over newer entrants attempting to commoditize the category.
$500M Series D at $11B valuation (Feb 2026) — largest voice AI funding round ever. $330M ARR; 1M+ developers using the API. Enterprise customers: Deutsche Telekom, Revolut, Meta, Salesforce. Voices in 32 languages; real-time cloning from 1 second of audio.
About
ElevenLabs was founded in 2022 by Piotr Dabkowski and Mati Staniszewski, two former Google and Palantir engineers who set out to break the language barrier using AI voice technology. The company specializes in AI-powered voice synthesis, cloning, and dubbing, enabling developers and enterprises to generate human-quality speech in over 30 languages. Its core technology combines deep learning models trained on massive speech datasets to produce natural-sounding voices indistinguishable from real humans.\n\nElevenLabs offers a suite of products including its flagship text-to-speech API, voice cloning tools, and an AI dubbing platform that localizes video content while preserving the speaker's original voice. Its products target a broad audience—from indie developers building audio apps to large enterprises deploying voice interfaces at scale. Key differentiators include ultra-low latency streaming synthesis, fine-grained voice customization, and a growing library of pre-built AI voices across accents and styles.\n\nElevenLabs has grown rapidly, surpassing $330M in annualized revenue and serving over 1 million developers. Enterprise clients include Deutsche Telekom, Spotify, and leading media companies. In February 2026, the company closed a $500M Series D at an $11B valuation, cementing its position as the market leader in AI voice. Its APIs power podcasts, audiobooks, video games, and customer service bots worldwide, making ElevenLabs the default infrastructure layer for AI-generated audio.
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