Hypercubic

Hypercubic

AI-native platform for mainframe maintenance

Overview

Hypercubic builds an AI-native platform to maintain and modernize mainframe systems. It helps large organizations manage aging, critical software by capturing and preserving expert knowledge and workflows in a digital form. The core tools are HyperTwin, which collects tacit knowledge and real-time procedures from experts, and HyperDocs, which creates continuously updated documentation for complex systems. The platform creates a digital twin of operations so users can get instant, cited answers to questions, speeding onboarding and reducing risk when experts leave. It integrates with existing enterprise tools like Slack, Confluence, Jira, and GitHub to fit into current workflows. The goal is to protect institutional knowledge of legacy systems and improve efficiency and reliability across IT operations.

YC Company
Launched Recently
Funded Recently

About Hypercubic

Simplify's Rating
Why Hypercubic is rated
C-
Rated C on Competitive Edge
Rated C on Growth Potential
Rated D+ on Differentiation

Industries

Data & Analytics

Consulting

Enterprise Software

AI & Machine Learning

Company Size

1-10

Company Stage

Seed

Total Funding

$5.4M

Headquarters

San Francisco, California

Founded

2025

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Simplify's Take

What believers are saying

  • Hypercubic raised $5.3 million on August 18, 2026, extending runway and hiring capacity.
  • Axios and SiliconANGLE report live deployments with a Latin American bank and Caribbean retailer.
  • YC backing and fresh investor interest validate demand for faster COBOL modernization now.

What critics are saying

  • A failed rewrite at a Latin American bank would poison enterprise trust immediately.
  • Mainframe incumbents like IBM and Infosys already own procurement channels and long-term modernization budgets.
  • If autonomous agents miss hidden business logic, one production outage kills Hypercubic’s core thesis.

What makes Hypercubic unique

  • Hypercubic targets mainframe modernization, not generic enterprise copilots, with COBOL-specific agents.
  • Its HyperTwin and HyperDocs products capture tacit operator knowledge and auto-generate cited documentation.
  • Sai Gurrapu’s Apple multimodal ML background strengthens its technical credibility for complex system understanding.

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Funding

Total Funding

$5.4M

Below

Industry Average

Funded Over

2 Rounds

Notable Investors:
Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Above Average

Industry standards

$3.3M
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood
$5.3M
Hypercubic

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Paid Vacation

Relocation Assistance

Company News

SiliconANGLE Media
Aug 18th, 2026
Hypercubic raises $5.3M to map out and rewrite legacy COBOL apps with AI agents.

Hypercubic raises $5.3M to map out and rewrite legacy COBOL apps with AI agents. An artificial intelligence startup called Hypercubic Inc. is taking on the problem of modernizing legacy applications written in the COBOL programming language after raising $5.3 million in seed funding today. The round was led by CIV and saw participation from Y Combinator, Afore Capital, Pioneer Fund, Multimodal Investors and angels including Opendoor Chief Executive Kaz Nejatian and former Amazon Marketplace engineer and Walmart Labs co-founder Venky Harinarayan. Hypercubic is the brainchild of former Apple Inc. engineers Sai Gurrapu and Aayush Narik. They've hit upon the idea of using AI agents to perform the heavy lifting of reading, documenting and then rewriting decades-old COBOL codebases, which is a major headache that continues to stump many of the world's largest financial institutions and industrial companies. COBOL, short for Common Business-Oriented Language, is one of the most ancient widely used programming languages in the world today. It was first written in 1959, and is specifically designed for processing business and financial data. Despite its age, it's still incredibly popular, with an estimated 200 billion-plus lines of COBOL code supporting more than 95% of the world's swipe transactions and automated teller machines. So it still works, but the problem is that there are very few programmers around who can understand it. The original generation of COBOL developers retired from the workforce decades ago, and now their successors are also aging out. One estimate suggests that 90% of current COBOL engineers are expected to retire within the next five to 10 years, and that's going to create massive problems for any business that still has critical systems based on the language. The solution is to modernize those applications and write them in a modern language that younger engineers understand, such as Java. But doing so is a mammoth and extremely risky undertaking. A single undocumented change in a monolithic COBOL program could cause critical services such as a bank's ledger or a government's social security payments system to crash, and it could take days to identify the problem and fix it. COBOL has often been likened to asbestos. Just as that toxic material is extremely difficult to remove from old buildings, COBOL is deeply embedded in massive, vertically integrated mainframe stacks, and replacing it involves redesigning everything from the data architecture to the storage and transaction processing. Rewriting COBOL manually is a years-long effort that most organizations keep putting off because of the expense and the massive risk involved. Hypercubic wants to convince those companies that its autonomous AI agents can finally solve their problems by automating the entire COBOL modernization process. They're powered by models that have been trained on massive volumes of COBOL code and they also know how to rewrite all of its specific functions in modern programming languages. When they start out with a new COBOL application that needs to be modernized, they map the entire codebase first of all. While doing this, they recover all of the business logic that's buried inside that code, and then use this information to automatically generate the documentation for it, which has never previously been written. "The problem is not simply translating COBOL syntax," Gurrapu said. "The real challenge is recovering decades of hidden business logic, understanding how systems behave in production, and proving that a modern replacement preserves what matters." Using this AI-generated documentation, it then becomes much easier to generate the modern code needed to create an identical replica of the original app, complete with all of its historical data. According to Gurrapu, Hypercubic's agents can completely modernize legacy apps in just a couple of months, as opposed to the years required for manual transformation. "We are building agents to make that work dramatically faster and more reliable," Gurrapu said. The startup is already working with one of the largest banks in Latin America, as well as a leading Caribbean retailer that serves more than 50 million customers annually, to revamp their most critical applications. With today's funding, it's going to invest in building out the capabilities of its AI agents and also expand its capacity to serve even more enterprise customers. Image: Hypercubic. A message from John Furrier, co-founder of SiliconANGLE: Support its mission to keep content open and free by engaging with theCUBE community. Join theCUBE's Alumni Trust Network, where technology leaders connect, share intelligence and create opportunities. * 15M+ viewers of theCUBE videos, powering conversations across AI, cloud, cybersecurity and more * 11.4k+ theCUBE alumni - Connect with more than 11,400 tech and business leaders shaping the future through a unique trusted-based network Are you an AWS customer? Support SiliconANGLE financially by buying your AWS services from its Marketplace portal page and links: https://siliconangle.com/aws-marketplace/. About SiliconANGLE Media. SiliconANGLE Media is a recognized leader in digital media innovation, uniting breakthrough technology, strategic insights and real-time audience engagement. As the parent company of SiliconANGLE, theCUBE Network, theCUBE Research, CUBE365, theCUBE AI and theCUBE SuperStudios - with flagship locations in Silicon Valley and the New York Stock Exchange - SiliconANGLE Media operates at the intersection of media, technology and AI. Founded by tech visionaries John Furrier and Dave Vellante, SiliconANGLE Media has built a dynamic ecosystem of industry-leading digital media brands that reach 15+ million elite tech professionals. Its new proprietary theCUBE AI Video Cloud is breaking ground in audience interaction, leveraging theCUBEai.com neural network to help technology companies make data-driven decisions and stay at the forefront of industry conversations.

Axios
Aug 18th, 2026
Hypercubic raises $5.3M to modernise mainframe software with AI

Hypercubic, an AI platform for legacy mainframe software, has raised $5.3 million in seed funding, CEO Sai Gurrapu told Axios. The company aims to modernise mainframe systems that underpin critical IT infrastructure across banking, government, retail, and other industries. Updating these legacy systems typically requires costly, yearslong projects. The funding will support Hypercubic's efforts to streamline the modernisation process for organisations dependent on mainframe technology.

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