Zeitgeist | Startup Signals & Product Intelligence

Custom
Build

Cartesia

Real-time multimodal voice AI built on State Space Model foundation architecture.

Proprietary State Space Models (SSMs) power ultra-low-latency TTS, STT, and voice agent infrastructure, deployed via cloud, VPC, and on-prem.

Technology

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Technology

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Voice AI

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Series B

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April 29, 2026

Custom
Build

Deepgram

AI voice platform powering real-time speech-to-text, text-to-speech, and conversational voice agents

Using end-to-end deep learning STT/TTS/STS models for real-time transcription and voice agents, active learning data flywheels for continuous model improvement, edge/embedded model deployment for defense and air-gapped environments, and vertical voice AI agents for restaurant drive-thru automation.

Technology

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Technology

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Voice AI / Speech Recognition

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Series C

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April 29, 2026

Custom
Build

ElevenLabs

Building human-like AI voices that speak, clone, dub, and converse in 70+ languages

Using proprietary neural TTS/STT foundation models, real-time low-latency inference, emotional prosody modeling, and multimodal conversational agent orchestration.

Technology

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Technology

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Voice AI

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Series D+

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April 29, 2026

Custom
Build

CellType

Simulates human biology with AI to predict drug effects and run virtual trials.

Using virtual biology simulation via Cell2Sentence foundation models, agentic multi-omics reasoning across 30+ biomedical APIs, and patient stratification modeling.

Healthcare

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Healthcare

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Drug Discovery

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YC W26

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March 24, 2026

Custom
Build

Rubric AI

Post-training lab building rubric-based reward models and agentic frameworks for LLM alignment.

Using rubric-based reward modeling for LLM evaluation, academic review simulation for paper feedback, and agentic AI orchestration for alignment workflows.

Technology

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Technology

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Post-training

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YC W26

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March 24, 2026

Custom
Build

Beacon Health

Puts primary care on autopilot for value-based care, closing quality gaps inside the EHR.

Using AI agents that close clinical quality gaps in the EHR, automated risk adjustment coding, and conversational triage for after-hours patient outreach.

Healthcare

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

Healthcare

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Primary Care

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YC W26

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March 24, 2026

Custom
Build

Forum

Building the first regulated exchange where attention is traded as a standardized commodity.

Using ML-powered attention scoring and pricing models, fraud and anomaly detection for market integrity, and attention demand forecasting for contract valuation.

Finance

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Finance

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Digital Asset Trading

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YC W26

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March 24, 2026

Custom
Build

Noetic

Automates regulatory research, documentation, and lab matching for hardware product certification.

Using agentic regulatory NLP for standards mapping, predictive lab matching for testing facilities, and regulatory change detection across jurisdictions.

Technology

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Technology

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Regulatory Compliance

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YC W26

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March 24, 2026

Custom
Build

Moda

Monitors AI agents in production with real-time failure detection and conversation replay.

Using anomaly detection and clustering for behavioral failures, LLM threat classification for prompt injection, and root-cause clustering for evaluation.

Technology

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

Technology

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MLOps

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YC W26

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March 24, 2026

Custom
Build

Inviscid AI

Creates digital twins of buildings and data centers to autonomously optimize energy and cooling.

Using physics-informed neural networks as real-time CFD surrogates, digital twin thermal optimization, and occupancy-driven energy forecasting.

Technology

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

Technology

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PropTech

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YC W26

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March 24, 2026

Startup Product Intelligence

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Startup Product Intelligence

Cartesia

Real-time multimodal voice AI built on State Space Model foundation architecture.

Deepgram

AI voice platform powering real-time speech-to-text, text-to-speech, and conversational voice agents

ElevenLabs

Building human-like AI voices that speak, clone, dub, and converse in 70+ languages

CellType

Simulates human biology with AI to predict drug effects and run virtual trials.

Rubric AI

Post-training lab building rubric-based reward models and agentic frameworks for LLM alignment.

Beacon Health

Puts primary care on autopilot for value-based care, closing quality gaps inside the EHR.

Forum

Building the first regulated exchange where attention is traded as a standardized commodity.

Noetic

Automates regulatory research, documentation, and lab matching for hardware product certification.

Moda

Monitors AI agents in production with real-time failure detection and conversation replay.

Inviscid AI

Creates digital twins of buildings and data centers to autonomously optimize energy and cooling.