LAB›AI UPDATES›GROK

GROK

BY XAI // GROK 2T // GROK 4.6 // GROK 4.5 // GROK 4 // GROK 4 HEAVY // GROK V9-MEDIUM // GROK 4.3 // GROK BUILD 0.1 // GROK 4.20 // COLOSSUS 2 // TESLA
// RELEASE HISTORY
MAJORFEATUREPATCH
2026-08
MAJOR
LATEST
Grok 2-Trillion Parameter Model
August 2026. xAI's next-generation 2-trillion parameter foundation model is slated for general availability, promising significant improvements over Grok 4.5.
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// FULL RELEASE NOTES
›Released: August 2026 (targeted general availability) — source: basenor.com/blogs/news/xai-s-2t-model-what-musk-just-revealed-about-grok-s-successor
›A 2-trillion-parameter system, representing a 33% increase in scale over the current 1.5T V9 model powering Grok 4.5.
›Elon Musk described it as "better than the 1.5T in every way," positioning it as a direct successor.
›Initial training wraps up in late July 2026, followed by evaluation, safety testing, and infrastructure deployment.
›Musk hinted it "might be able to exceed Kimi" (Moonshot AI's frontier model) in performance.
2026-07
MAJOR
Grok 4.6 Confirmed
July 18, 2026. Elon Musk confirmed Grok 4.6 is in the pipeline, just two days after Grok 4.5's public release, suggesting a rapid iteration cycle for xAI's models.
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2026-07
FEATURE
Grok Build Open Sourced
July 16, 2026. xAI open-sourced Grok Build, its coding agent and TUI, making the source available on GitHub for transparency and community contributions.
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2026-07
FEATURE
Automations in Grok
July 16, 2026. xAI introduced Automations in Grok, enabling users to schedule jobs or trigger them based on incoming emails, with support for templates and reporting.
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2026-07
PATCH
Grok Build Patch Updates
July 13, 2026. Grok Build received multiple patch updates (v0.2.76, v0.2.89, v0.2.94, v0.2.101) with various fixes and improvements to its terminal, dashboard, and voice dictation.
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2026-07
FEATURE
Grok 4.3 Generally Available on Amazon Bedrock
July 16, 2026. xAI's Grok 4.3 is now generally available on Amazon Bedrock, providing AWS developers with direct access to the reasoning model and marking xAI's formal entry as a model provider on the platform.
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2026-07
PATCH
Grok Build Patch Update (v0.2.96)
July 13, 2026. Grok Build received a patch update (v0.2.96) with terminal and dashboard improvements.
2026-07
FEATURE
Grok Gaming Initiative
July 10, 2026. Elon Musk announced xAI's Grok gaming initiative, revealing a dedicated game studio, AI-generated game development, and Grok's ability to playtest its own creations.
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2026-07
FEATURE
Grok 4.5 available on free tier
July 10, 2026. Grok 4.5 is now available on the free tier, allowing any X or Grok account holder to try it via Grok Build.
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2026-07
MAJOR
Grok 4.5 Public Release
July 9, 2026. xAI publicly released Grok 4.5, an "Opus-class" model, which is faster, more token-efficient, and lower cost.
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2026-07
PATCH
Done with Grok Imagine
July 5, 2026. Elon Musk announced the completion of development for Grok's image and video generation capability, signaling a move to a more stable and polished state for the multimodal feature.
2026-07
FEATURE
Grok Voice Dictation in Grok Build
July 2, 2026. xAI expanded Grok Voice into its Grok Build coding agent, letting developers dictate prompts hands-free via the /voice command or Ctrl+Space shortcut.
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2026-07
MAJOR
Grok 4, Grok 4 Heavy, and API Public Beta
July 1, 2026. xAI launched Grok 4, its most intelligent model, alongside a new SuperGrok Heavy tier and a public API beta for developers.
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2026-07
FEATURE
Grok Image Generation (Aurora) Release
July 1, 2026. xAI updated Grok's capabilities with a new autoregressive image generation model, code-named Aurora, available on the X platform.
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2026-07
FEATURE
Grok Voice Agent Builder
July 1, 2026. xAI launched its Grok Voice Agent Builder, a no-code platform for deploying production-ready voice agents, available to all users.
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2026-07
FEATURE
Grok 4.1 Wider Availability
July 1, 2026. Grok 4.1 became available to all users on grok.com, X, and the iOS and Android apps, rolling out immediately in Auto mode, and can now be explicitly selected in the model picker.
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2026-06
MAJOR
Grok 4.5 Enters Private Beta at Tesla and X
June 29, 2026. Elon Musk announced that xAI's next-generation Grok 4.5 is now in private beta testing at SpaceX and Tesla, with early evaluations suggesting performance close to or above Anthropic's Opus model.
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2026-06
FEATURE
Grok for Word
June 23, 2026. Grok now offers direct integration with Microsoft Word, enabling AI-powered document creation, styling, and research import.
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2026-06
FEATURE
Grok Build /goal Mode for Autonomous Tasks
June 22, 2026. xAI launched `/goal` mode in Grok Build, enabling long-running, autonomous task execution with built-in verification for multi-step coding tasks.
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2026-06
FEATURE
Grok on Databricks
June 18, 2026. xAI made Grok available on Databricks, expanding its enterprise integration capabilities for data and AI workloads.
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2026-06
FEATURE
Grok Imagine Video 1.5 GA + Fast
June 16, 2026. xAI released Grok Imagine Video 1.5 as generally available in the Imagine API, along with Video 1.5 Fast on grok.com/imagine and its mobile apps, offering improved quality and faster generation.
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2026-06
FEATURE
Grok on Amazon Bedrock
June 15, 2026. xAI's Grok 4.3 is now accessible through Amazon Bedrock, providing AWS developers with direct access to the reasoning model, marking xAI's formal entry as a model provider on the platform.
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2026-06
FEATURE
Agent Dashboard in Grok Build
June 15, 2026. xAI introduced an Agent Dashboard in Grok Build, providing enhanced visibility and control over multi-agent workflows.
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2026-06
FEATURE
Grok for PowerPoint
June 15, 2026. Grok now supports direct integration with PowerPoint, enabling AI-powered content generation and analysis within presentations.
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2026-06
PATCH
Grok Build Patch Updates (June 15)
June 15, 2026. Grok Build received several patch updates (v0.2.47, v0.2.43, v0.2.29, v0.2.23) with various fixes and improvements.
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2026-06
MAJOR
Grok 2-1212 and Grok 2-vision-1212 Models Released
June 10, 2026. xAI released new Grok 2-1212 and Grok 2-vision-1212 models, offering improved accuracy, instruction-following, and multilingual capabilities.
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2026-06
MAJOR
Grok V9-Medium Deployment to Tesla and X
June 10, 2026. xAI began deploying Grok V9-Medium, its largest model yet, into Tesla's connected-car fleet and the X social network, leveraging a unique distribution advantage.
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2026-06
FEATURE
Structured Outputs for Grok
June 10, 2026. Grok now supports structured outputs, allowing responses to be formatted in a predefined, organized format rather than free-form text.
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2026-06
PATCH
Grok Build Patch Updates (June 9)
June 9, 2026. Grok Build received several patch updates (v0.2.40, v0.2.39) with various fixes and improvements.
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2026-06
PATCH
Grok Build Patch Updates (June 8)
June 8, 2026. Grok Build received several patch updates (v0.2.38, v0.2.37, v0.2.36) with various fixes and improvements.
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2026-06
FEATURE
Smart Turn for Streaming Speech to Text API
June 2026. xAI added Smart Turn end-of-turn detection to its streaming Speech to Text API, improving dictation and reducing false endpoints.
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2026-06
PATCH
Agent tools adapt to Grok 4.1 Fast models and tool prices dropped
Agent tools can now be used with Grok 4.1 Fast models, and the price of agent tools has been reduced by up to 50%.
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2026-06
MAJOR
Grok V9-Medium Training Completion
Mid-June 2026. xAI completes training of Grok V9-Medium, a 1.5-trillion-parameter model, with public release targeted for mid-June 2026, promising sharper reasoning and better code output.
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2026-06
FEATURE
Grok Becomes the Voice of Vapi
Grok is integrated as the voice of Vapi, enhancing its real-time conversational capabilities.
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2026-06
PATCH
Grok Build v0.2.20 Patch Update
Grok Build receives a patch update (v0.2.20) with various fixes and improvements, including markdown table rendering, monitor visibility, and new image_to_video tools.
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2026-06
FEATURE
Grok Imagine 1.5 Preview
xAI releases Grok Imagine 1.5 Preview, an update to its image and video generation tool, available to X Premium subscribers.
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2026-06
FEATURE
Composer 2.5 Integration into Grok Build
xAI integrates Composer 2.5 into Grok Build, offering SuperGrok and X Premium+ users a fast, state-of-the-art model excelling in long-running tasks and complex instruction following.
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2026-06
FEATURE
Grok Voice Launch
June 4, 2026. xAI launched Grok Voice, bringing conversational spoken interaction to the Grok mobile app. Users can now talk to Grok and receive verbal responses instead of typing.
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2026-05
MAJOR
Grok 4.20 — Flagship Model with 2M Context
May 1, 2026. Grok 4.20 became xAI's top-tier model, featuring a 2-million token context window and xAI's lowest hallucination rate to date.
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2026-05
MAJOR
Grok Build 0.1 API Public Beta
xAI releases Grok Build 0.1, its fastest coding model, via public API beta, making it available to developers for building AI-powered applications without a SuperGrok or X Premium+ subscription. Now supports Git worktrees for parallel coding workflows.
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2026-04
MAJOR
Grok 4.3 — Improved Agentic Performance
Released April 17, 2026. New pre-trained model matching the scale of Grok 4 with improved architecture and a December 2025 knowledge cutoff. Lower pricing than Grok 4 at comparable quality.
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2025-11
MAJOR
Grok 4.1
Released November 17, 2025. Faster responses with no thinking-token overhead for immediate queries. Reduced hallucinations and higher factual accuracy vs Grok 4. #2 on LMArena Text leaderboard at launch.
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2025-07
MAJOR
Grok 4 + Grok 4 Heavy
Released July 9, 2025. xAI's flagship model trained on the full 200K-GPU Colossus 2 cluster. Grok 4 Heavy runs parallel reasoning agents simultaneously — 100% AIME 2025, 88.9% GPQA Diamond.
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2025-06
MAJOR
Grok Integrated into Tesla Vehicles
xAI rolls out Grok into Tesla's in-car AI — real-time data, vehicle telemetry awareness, and the first major Grok deployment outside the X platform.
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2025-04
MAJOR
Colossus 2 — 200,000 H100 Cluster
xAI doubles Colossus to 200,000 H100 GPUs — the largest confirmed AI training cluster in the world. Grok 4 training underway.
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2025-02
MAJOR
Grok 3 + DeepSearch + Aurora
xAI ships Grok 3, DeepSearch, and Aurora image generation in a single launch. All three were announced and released together from the same Colossus cluster.
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2024-08
MAJOR
Grok 2 + Vision
Major capability upgrade. Real-time image understanding, live web search, and significant STEM gains. Grok 2 Mini available for faster, lower-cost inference.
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2024-03
MAJOR
Grok-1 Open Sourced — 314B Parameters
xAI releases full Grok-1 weights (314B) under Apache 2.0 — the largest open-source LLM released at the time.
// STAY CURRENT
Full release notes and technical docs on the official site.
grok.com ↗
⚠ AI-CURATED — data may be inaccurate or outdated. Verify at official sources.
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