Merge builds product and business tools with OpenAI technology

Merge helps companies build connected software and AI products, from syncing customer data to enabling AI agents to take action across business systems. Its products span customer-data integrations through Merge Unified, secure tool access for AI agents through Merge Agent Handler, and model routing and cost controls through Merge Gateway. Merge for Workforce brings those capabilities inside companies, helping teams manage which models, tools, and business systems employees can access. Together, these products support both the software companies build for customers and the AI-powered work happening inside their organizations.

Inside Merge, CEO and Co-founder Shensi Ding uses Codex to review product code, including work on a new setup interface for configuring tool access in Merge for Workforce. Her colleagues use GPT‑6 Astra for product testing and marketing. The team also uses AI for the work of running the company, from preparing sales updates to planning customer dinners.

“We use it honestly for everything. Integrations obviously, but we also use it to automate different workflows, to help make our product better overall, to incorporate any feedback from our customers, and to build end-to-end features.”

—Shensi Ding, CEO and Co-founder, Merge

Inside the rollout

Merge launched a tool for adding connectors to AI products, with reliability a priority for Ding: “We’re pretty proud of the quality. Tool calls through Merge succeed 99.9% of the time, compared to public MCP servers, which are around 60%.”

For its own product development, Merge uses GPT‑6 Astra. “It’s really fast, and it was much better at code reviews,” Ding says. “They also liked the personality of GPT‑6 Astra, which goes a long way. It was also clear that Codex had improved a lot. Merge lets employees choose their own AI tools, and which one to use has become a lively internal debate.”

—Shensi Ding, CEO and Co-founder, Merge