I gave grok 4.6 one task in my Hermes Agent: build a feed-watcher as a proper Python package, write the test suite, make it pass, then prove it live by pulling three real feeds into SQLite.
it shipped everything. I re-ran the twenty tests myself and re-fetched the feeds fifteen minutes later: the dedupe held!
my estimated bill for the whole build: about 15 cents.
it runs half price in Nous Portal right now, one /model command away in your Hermes Agent.