from Hacker News

Ask HN: How is the latest Open AI Codex?

by raydenvm on 6/4/25, 5:35 AM with 3 comments

Have you had a chance to try out the latest version of Codex? How does it compare with Claude Code, which I am currently using extensively?
  • by hmottestad on 6/4/25, 6:04 PM

    I’ve been testing on a large open source Java project that I contribute to.

    Took a lot of trial and error to get the setup script working. If commands were too verbose then everything would crash, and if it’s not outputting anything for a while then the script is cancelled because it thinks that it’s stalled.

    There was also the issue with maven not detecting the default Linux http proxy.

    I’ve also put a lot of effort into trying to create a good AGENTS.md file.

    So far it’s been very slow going, but I have managed to get it to start porting some of my unit tests to use test containers for running up Elasticsearch.