Chatham scales its capital markets expertise with OpenAI

Chatham Financial uses Codex and GPT‑5.6 to build technology and redesign workflows, cutting trade validation from 30 minutes to under 4. Chatham Financial⁠ advises clients on complex capital markets decisions, where accuracy and auditability are paramount. As AI capabilities advanced, the firm saw an opportunity to turn proven processes into governed, repeatable workflows and software, reducing the time spent on routine execution, so its experts can focus more on client needs.

Today, Chatham uses Codex to build internal and client-facing tools and GPT‑5.6 to power AI features. This work spans employee-built applications, its next-generation capital markets operating system Chatham Onyx, and its reengineering consulting service Process Zero, which accelerated trade validation from 30 minutes to under 4. Through Process Zero, Chatham reengineers workflows around outcomes. For each workflow, the firm identifies the minimum inputs and evidence required, determines where human judgment is essential, and decides how AI and AI-built tools should support the work.

Trade validation is an early example. Chatham’s Controls and Data Integrity team protects the accuracy of transaction data by validating that each system record reflects what…