xAI Grok API (signup credits)
xAI
New accounts get roughly $25 in one-time API credits just for signing up; several third-party sources also mention an optional monthly bonus-credits program tied to data sharing
The official docs.x.ai pricing page doesn't directly list the signup-credit terms; this comes mainly from consistent reports across multiple third-party tracking sites: the $25 in credits expires after roughly 30 days. The data-sharing bonus requires the account to have already spent at least $5 to activate, and the amount and eligibility criteria have changed between 2025 and 2026 — check console.x.ai for what's actually shown on your account.
The official page doesn't directly confirm the signup-credit details, so confidence is lower than other entries in this list. The one-time credits expire after 30 days — long-term use still requires paying out of pocket.