๐Om Saravana bhava๐
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Teri sada hi Jay Ho Om Saravana Bhava๐ @grok
nobody in that room realised what he just said
microsoft's ceo told a conference that the frontier model you rent for $200 a month is the commodity, and someone has now measured what that costs everyone who assumed otherwise
teams carrying 90 to 100% evaluation coverage reach excellent reliability 70.3% of the time, against 32.4% for teams sitting under half, on the same rented models
i read the survey behind it twice because the sample is 500 enterprise teams rather than a vendor anecdote, and the spread holds across all of them
this is Eval Engineering, and it is the part of the stack that stops being rented:
- stop classifying behaviours as low-risk before you have data on them, because the 19.3% of teams who do take 2.3 times the production incidents and the intuition fails hardest exactly where behaviour is emergent
- make the incident the source of the test: only 51.7% of teams turn an outage into a permanent regression, so half of all incident response gets paid for and then thrown away
- budget coverage like continuous integration rather than like paperwork, since the pattern separating the elite teams is 70% coverage held together with 40% of development time spent on testing
- gate the deploy on the eval instead of reporting the eval, because a threshold that cannot block a release is a dashboard with extra steps
- keep the examiner private, since it encodes your own definition of correct: the model gets replaced from scratch twice a year and the examiner is the only asset that survives the swap
- expect the incident rather than hoping to prevent it, because 84.9% of organisations hit one inside six months and only 8.4% report none, so detection speed is the real variable
- review the gaps on a schedule and make the team justify an uncovered behaviour rather than defend a test that already exists
the catch is what coverage actually costs, and it is not the tooling bill: the elite pattern spends 40% of development time on testing, which is the share of every sprint that stops being feature work
that is the trade nobody puts in the quickstart, and it is why most teams stay at the coverage level where reliability lands at 32.4%
bookmark this, the whole build sits in the article โ