CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins85% CONFIDENCEOverall confidence: 85%How well the pin's source and references back up its dates.Weighted average of how firmly 6 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
Artificial Analysis[1][3]' launch article is dated 30 April 2026 and opens 'xAI has launched Grok 4.3'; OpenRouter[6] lists x-ai/grok-4.3 as created 2026-04-30 and AA's model page gives April 30, 2026; a beta had been in the Grok apps since 17 April (Codersera[4]), and some outlets date the broad launch to 1 May.SpaceXAI (formerly xAI) puts Grok 4.3 on its API, a 1M-token reasoning model at $1.25 per 1 million input tokens and $2.50 per 1 million output tokens, about 40% and 60% cheaper than Grok 4.20; Artificial Analysis scored it 53 at launch.
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