Every month, developers migrate between Codex and Claude. Anature documentary.

The beginning of the month has come. Once again, it is migration season.

The quotas of the old savanna have run dry. A balding adult developer is the first to raise his head and test the air. From across the Pacific rolls a low thunder — the distant applause of a new model launch.

And so the migration begins. They abandon the CLAUDE.md they have tended for half a month and merge, in silence, into the herd. They leave the Claude grasslands for the fabled plains of Codex, where — they say — the grass grows richer and the benchmarks sit two points higher. The column stretches across several time zones.

Soon the herd reaches the Mara River. The water is murky. Beneath the surface, the crocodiles wait. One of them breaks through and speaks: "Are you sure you want to cancel your subscription? We've saved a 50% discount, just for you." The young turn back here. The adults only let out a low growl, throw themselves into the current, drag themselves up the far bank, and — on pure instinct — enter that string of credit card numbers.

Midstream, they pass another herd moving the opposite way: the population migrating back from Codex. Neither herd looks at the other. Each crosses alone. No one asks the other why.

Our cameras find an older male. This is his eleventh crossing. He stopped reading the benchmark reviews long ago. He simply walks, head down, in the middle of the herd, an unfinished agent task still strapped to his back. He knows the grass will be no greener on the far side. And he knows that next month, he will walk this same road home.

Such is the law of silicon-based nature.