Chatham Financial, an advisory firm for complex capital markets decisions, is utilizing OpenAI's Codex and GPT-5.6 to automate routine processes and build new technology. Through its "Process Zero" consulting service, the firm has reengineered workflows to accelerate trade validation, reducing the time required from 30 minutes to under 4 minutes.
Product LaunchesChatham Financial
Chatham Financial integrates OpenAI's Codex and GPT-5.6 to optimize capital markets workflows
The firm uses Codex to develop both internal and client-facing tools, assisting in the development lifecycle of its next-generation operating system, Chatham Onyx. Within Onyx, the platform leverages various models, including GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.4, and GPT-4.1, routing tasks to the most cost-effective model based on complexity. An example of these capabilities is ChatFIN, an AI assistant that summarizes historical market data patterns and locates relevant legal documents for debt and derivatives.
Additionally, Chatham employees use ChatGPT and Codex for research, analysis, and software development. An internal platform called "Chatham Vibes" allows employees to create tailored applications, which run on GPT-5.6 Terra by default. Chatham plans to expand its trade validation application to more product types and continue using Codex to develop new capabilities for the Onyx platform.
Sources
- Chatham scales its capital markets expertise with OpenAI （OpenAI News, 2026-10-02）
- Chatham Financial