cache:true to reuse an account-scoped stored result whose validated response-affecting options match.
Identity includes the target, viewport or device, format, quality, full-page mode, theme, interactions, cleanup controls, regions, storage provider and prefix, and return-location behavior. Headers, cookies, and customer-storage credentials participate only through an opaque HMAC fingerprint; their values are not stored in cache keys or entries.
The normal TTL is one hour and high-priority entries use five minutes. Entries missing a requested media URL, region crop, hash, projection, or extraction component are rejected as misses. cache:false always captures fresh and does not write the screenshot cache. Screenshot-cache hits retain normal screenshot and region pricing.
Visual Style Guide cache
Successful Style Guides cache automatically for seven days. Identity includes the account, screenshot and crop hashes, deterministic projection, prompt/schema/vision versions, OpenAI host and model settings, credential mode, and a keyed BYOK fingerprint. Platform and BYOK entries never mix.styleGuide.regenerate:true bypasses only this AI cache and replaces it after a successful generation. It does not turn screenshot caching on or off. Use cache:false plus regeneration to force both layers fresh.
Failed generations are never cached. Cache read/write failure is non-fatal to an otherwise successful capture or Style Guide.