Codex's Fast (service_tier=priority) and Ultrafast (ultrafast) were dropped
on the way to a custom provider: the gateway only passed a tier on to
chatgpt.com and Cursor, and magpie's models.json entries for such a
provider's models offered no tiers, so the user's own picks were written
over.
- Request.Tier keeps the client's service_tier as sent; for a provider with
no preset and no account (OwnTier) both buildResponses and buildChat send
it as it is. One that refuses the field by name is asked again without it
and remembered as unfit for it, as the other optional fields are.
- codexcat offers such a provider's model the tiers Codex's own entry gives
the same slug (dated snapshot and provider prefix stripped), Fast on
another GPT model, none otherwise. Presets and groups are unchanged.
Run: TestOwnProviderGetsTier (Responses/Chat x priority/ultrafast/flex),
TestPresetProviderGetsNoTier, TestOwnProviderRefusingTier,
TestOwnProviderTiers; the gateway ones fail without the gateway change and
TestOwnProviderTiers fails without the codexcat change. go test gateway,
codexcat, catalog, provider; go vet darwin/linux/windows; gofmt -l clean.
Not tried against the reporter's relay.
yetone
68aab298d3