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xAI Releases Grok 4

Date: July 9, 2025
Company: xAI
Category: Models & Research

Narrative

Most intelligent model in the world with native multimodal understanding, tool use, real-time search integration, advanced reasoning, and reduced hallucinations. Includes Grok 4 Heavy variant for maximum performance. Available to SuperGrok/Premium+ users and xAI API.

xAI Blog

Reality

Launched July 9-14, 2025. Immediate access via grok.com, X, iOS/Android apps, and API. Introduced SuperGrok Heavy tier for Grok 4 Heavy. Strong performance in reasoning/tool-calling benchmarks; positioned as direct competitor to GPT-4o / Claude 3.5 / Gemini. Rapid iteration cycle continues.

Implication

Elevated xAI to top-tier frontier contender with native multimodality and tool integration. Distribution via X and aggressive pricing drove fast adoption. Set foundation for incremental updates and video/audio expansions. Competitive pressure intensified on OpenAI/Anthropic.

Tags

  • xai
  • model-release
  • multimodal
  • reasoning