API changes: September 5, 2026

← Changelog · September 2026

FIX-0905-1: chat with a Cowork/Code key works while the product is disabled

Before

POST /v1/chat/completions returned HTTP 503 with the lowercase code cowork_feature_disabled in the response body for an already-issued key carrying the vibe:cowork scope when Cowork/Code was disabled at the platform level.

After

The model call continues through the Cowork/Code subscription and still checks subscription activity, model availability, and quota. The switch continues to close Cowork/Code product interfaces and operations. Integrators do not need to change anything.

FIX-0905-2: the key-issuance refusal now separates an unread plan from a free one

Before

An international account whose plan Vibecode could not read was refused key issuance with 402 and the code INT_VIBE_PLUS_REQUIRED (or INT_TARIFF_REQUIRED), advising a paid plan. That advice could be wrong — the account might already be paying — because the decision was made off an empty plan code, and the code is empty both for a read free account and for one whose licence could not be requested.

After

The two states are now told apart. When the plan code is absent AND the last licence probe failed, the answer is 403 with the code PORTAL_TARIFF_UNREADABLE: the plan was not read, and buying one does not change that. details.requiredTariffs is empty — no plan clears this refusal — while details.upgradeUrl and alternatives[0].url point to support. The previous codes keep their own state: an account with a plan read as free still gets 402 and the previous copy.