Frontier Models

A curated index of notable named model releases—not an exhaustive changelog. Dates, availability and capability summaries are taken from first-party announcements and official documentation. “Why it matters” is anchored to those sources and labelled by evidence type. “Launch evidence” means no comparable public user signal was found. Named early-user reports are company-curated and are not treated as independent consensus. Public community feedback is linked only when it is attributable and adds material context.

Status key: Preview is limited or pre-GA access; API is developer availability; generally available is broad production access; open weights means downloadable parameters.