Releases

SpaceXAI will retire the grok-imagine-image-quality alias on November 2, 2026. The alias will continue to resolve to grok-imagine-image-2.0 with quality set to low, at a lower per-image price.

SpaceXAI retired Grok Voice Transcribe 1.0 and routed requests to Transcribe 2.0.

SpaceXAI released Grok 4.7 for coding and knowledge work with a larger base model, longer reinforcement-learning runs and stronger safeguards.

SpaceXAI released its second-generation speech-to-text model with improved transcription accuracy.

SpaceXAI released Grok 4.6 with a focus on long-running agents and ambitious interactive and visual work.

SpaceXAI released Imagine Image 2.0 for precise image generation and editing with stronger text rendering.

SpaceXAI added text, image and voice references plus native 1080p support to Imagine Video 1.5.

SpaceXAI released its second-generation real-time speech-to-speech model.

SpaceXAI expanded Grok 4.5 availability across grok.com, X, iOS and Android.

SpaceXAI introduced Grok 4.5 as its strongest model for coding, agentic tasks and knowledge work, trained alongside Cursor.

SpaceXAI open-sourced the Grok Build coding-agent harness and terminal user interface.

SpaceXAI made Grok models including the cost-efficient Grok 4.3 available through Amazon Bedrock.

SpaceXAI moved Imagine Video 1.5 out of preview into general API availability with improved quality and speed.

SpaceXAI released grok-imagine-video-1.5-preview through the API for image-to-video generation.

SpaceXAI released its first named Think Fast speech-to-speech voice-agent model.

SpaceXAI released Grok 4.20 and a multi-agent variant through its platform.

xAI released Grok 4.1 Fast and an Agent Tools API with X search, web search, code execution and collections search.

xAI released Grok 4.1 across grok.com, X, iOS and Android with improvements to creative, emotional and collaborative interactions.

xAI released Grok 4 Fast with a 2M-token context window, unified reasoning modes and lower-cost agentic search.

xAI released a speedy and economical reasoning model optimized for agentic coding.

xAI released the trained Grok-2 checkpoint for community use under the Grok 2 Community License.

xAI launched Grok 4 with native tool use and real-time search, plus the higher-compute Grok 4 Heavy multi-agent variant.

xAI unveiled Grok 3 and Grok 3 mini with reasoning modes, DeepSearch and Think capabilities trained on Colossus.

xAI launched the autoregressive Aurora image-generation model on X, adding photorealistic generation and multimodal image input.

xAI released Grok-2 and Grok-2 mini in beta on X and announced enterprise API availability.

Grok-1.5 rolled out to Grok users on X.

xAI previewed its first multimodal model, adding understanding of documents, diagrams, charts, screenshots and photographs.

xAI announced Grok-1.5 with improved reasoning and a 128,000-token context window.

xAI released the 314B-parameter Grok-1 base weights and Mixture-of-Experts architecture under Apache 2.0.

xAI announced Grok and its first public model after two months of training, with real-time knowledge through X.

xAI completed Grok-0, a 33-billion-parameter research prototype that preceded the first public Grok model.