# Tag: hidden-tests · Developer

> The items with the tag, newest first.

- [Four tasks, three setups, hidden tests: plain Opus matched my /work process](https://yotamfromm.dev/developer/blog/hidden-tests-trial.md): On four real backlog items scored by tests the agents could not see, plain Opus passed every hidden test my tuned /work process passed, in 7 minutes and $2.46 against 53 minutes and $8.92, in notional API dollars. This is how I set up the trial so the agents could not game it, what it showed, and why I retired /work. · [Plain text](https://yotamfromm.dev/developer/blog/hidden-tests-trial.txt) · lang: en

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