Greptile takes bug detection beyond code review with GPT-6 Astra
OpenAI features Greptile, which uses GPT-6 Astra to detect bugs beyond ordinary code review. Summary based on the title only.
What the article says
OpenAI publishes a customer story about Greptile, a startup building AI agents that review and test code changes with awareness of the whole codebase. Co-founder and CEO Daksh Gupta explains that GPT-6 Astra's computer-use abilities let the company simulate a user trying to crash an app: for example, starting a development server for a pull request, resizing the browser to an iPhone viewport and spotting a missing button.
Greptile also uses Daybreak to strengthen customers' security and Codex, to which its knowledge base is exposed through an MCP server; according to Gupta, thousands of customers have connected it, which reduces rollbacks of AI-generated code. The company uses Codex internally and sees Ultrafast as a way to move as fast as good ideas arrive, with the ambition of making delivery of critical enterprise software as easy as shipping a side project.
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