Limited free access on X: Grok 3 is available for free to all X (formerly Twitter) users, though paid subscribers get increased access and features.
Free Trial Periods: Keep an eye out for potential free trial offers from xAI or platforms integrating Grok 3, which could grant temporary access.
Through Integrated Platforms: Some third-party platforms or apps might offer limited free usage of Grok 3 as part of their own subscription or free tier.
OpenRouter with Free Credits: OpenRouter, an API aggregator, may offer new users free credits that can be used to test Grok 3 and other models.
LMArena.ai for Testing: The platform LMArena.ai sometimes allows free interaction with various AI models, including Grok 3, for testing purposes with usage limits.