AethexAI has emerged from stealth with a $3m pre-seed funding round and the launch of its enterprise voice artificial intelligence (AI) platform, targeting businesses across Africa and the Middle East.
The funding round was led by 4DX Ventures, with participation from Enza Capital, Dorm Room Fund, Mojo Ventures, 26 Fund, as well as strategic angel investors including Stanford faculty members, telecommunications executives and AI researchers from Anthropic.
The company said the capital will be used to expand enterprise deployments, grow its engineering and go-to-market teams, and deepen product capabilities across key regional markets.
AethexAI is targeting a market of approximately 1.5 billion people across Africa and the Middle East, where it believes existing voice AI solutions have struggled to operate effectively due to connectivity challenges, fragmented telecommunications infrastructure, high operating costs and difficulties handling local languages, dialects and accents.
The company has developed a voice AI infrastructure platform designed specifically for emerging markets, combining self-hosted, market-localised AI models with integrated telephony, orchestration tools and workflow management capabilities.
Delivered through a no-code interface and application programming interfaces (APIs), the platform enables enterprises to deploy and scale voice agents within existing workflows at lower costs than traditional providers.
The company was founded by Mariama Diallo and Ayooluwa Odemuyiwa, who said they identified significant gaps in the performance of existing voice AI technologies while working with businesses across Africa and the Middle East.
Diallo previously worked in investment banking at Goldman Sachs before joining YC-backed Model ML as its first product and growth hire. Odemuyiwa studied computer science at the California Institute of Technology (Caltech), worked on engineering systems across aerospace and at Meta, and later attended Stanford Graduate School of Business.
The platform is powered by Kora 1, AethexAI’s proprietary family of voice models trained on licensed datasets from call centres, radio networks and content platforms. The company said the models are designed to perform reliably in noisy environments and support multiple languages and accents.
Pricing starts at $0.03 per minute, compared with more than $0.10 per minute for many competing solutions, according to the company.
Alongside the platform launch, AethexAI has also introduced a developer ecosystem that allows third parties to build voice applications for emerging markets through a single API.
Mariama Diallo, co-founder of AethexAI, said: “Voice is already how businesses operate across emerging markets, but the technology behind it hasn’t kept up. We kept hearing the same thing from customers: that existing tools simply didn’t work in their environments. That’s why we built our own model stack and infrastructure from the ground up, designed for how these markets actually operate. With this backing, we’re now scaling AethexAI into the leading voice infrastructure platform in these markets.”
Ayooluwa Odemuyiwa, co-founder of AethexAI, said: “Voice AI failed in these markets at every layer of the stack. Latency, cost, poor handling of code switching, and weak performance under packet loss, jitter, and low-bitrate audio in real telecom networks led these systems to break in production. The fix was not incremental. It required redesigning the entire stack. Kora 1 is our family of speech models, specialised by dialect and fully self-hosted. We built and own the data pipeline behind them. Telephony, interruption handling, and retrieval are native to the system, proven and refined through enterprise deployments, not bolted on.”
Walter Badoo, co-founder and managing partner, 4DX Ventures, said: “Voice AI adoption in emerging markets has been constrained, less so due to demand, but rather by infrastructure that was never designed for these environments. AethexAI has taken a fundamentally different approach, rebuilding the stack from the ground up for how these markets actually operate. With real production deployments already at scale, the AethexAI team is building what we believe will become the defining voice infrastructure layer for the next billion users.”
The company currently employs 10 people and expects to double its workforce by the end of 2026 as it scales operations across its target markets.