What if I fire a lot of AI requests at the same time?

Concurrent paid requests are capped per account; extras get a brief 429 with a Retry-After and can be retried once a slot frees.

We cap how many paid requests run at once per account — five by default — to keep spending predictable. Extra concurrent requests get a brief 429 with a Retry-After: 2 header (two seconds) — retry after it, possibly more than once while the account is still at its cap. Free-model requests aren’t limited this way. The cap covers the whole account, so reader questions on your docs and your own CLI runs share it; if your docs are busy enough to hit it regularly, contact support.