Teams use Codex with GPT‑5.5 to review code and develop an agent to manage on-call rotation work, improving the developer experience and boosting productivity.
At Ramp, engineers are using Codex with GPT‑5.5 to accelerate code review and develop internal agentic tooling, helping teams get substantive pull request feedback in minutes instead of hours. Thanks to its reasoning capabilities, Codex with GPT‑5.5 is uniquely able to reduce the amount of manual, hands-on work they’d otherwise have to do.
Ramp’s AI Developer Experience team is using Codex to improve software development velocity and code quality.
“Codex code review is industry gold standard. We’ve been relying on it for a long time here at Ramp,” explains Austin Ray, who leads AI DevEx. “It’s incredible, and our engineers ask for it by name. They look forward to its comments on every PR, and it’s become a mandatory part of a lot of code review flows.”
Ramp engineers who used to wait hours for a first review can now get substantive feedback from Codex in minutes. Codex stands apart from other tools because it deeply reasons against the codebase, resulting in what Ray describes as “a level of thoroughness that most human reviewers don’t have time for.”
” Engineers who prefer to work close to the metal can work from the CLI, and the Codex app provides visual cues, utilities, and additional features for those who want them. Ray, typically a CLI user, felt drawn to the app. “It feels like the app shepherds you toward higher productivity in your engineering workflows,” Ray says.
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