Grok was not a single chatbot for long. xAI introduced it in late 2023 as an assistant connected to X; by July 2026, Grok 4.5, Grok Build, Grok Imagine, voice APIs, Office add-ins, and enterprise integrations had turned it into a product family built around models, APIs, media tools, voice, coding, and enterprise deployment.
That change began showing up in 2024 releases. Grok-1.5 brought a 128K context window, Grok-1.5V added vision, the xAI API opened to developers, and Aurora brought image generation into Grok. In 2025, Grok 3 and Grok 4 shifted attention toward reasoning, tools, coding, and voice agents.
This timeline tracks the product milestones behind that change: what Grok could do, where it was available, and when each major release opened a new model, API, tool, or platform.
Last updated: July 9, 2026
Quick timeline (latest first)
| Date | Event |
|---|---|
| July 09, 2026 | SpaceXAI introduced Muse Spark 1.1, a significant upgrade from the first Muse Spark model we released earlier this year. |
| July 8, 2026 | Grok 4.5 launches for coding, agentic tasks, and knowledge work. Grok 4.5 API Pricing. |
| June 18, 2026 | Grok for Word launches as a Microsoft Office add-in. |
| June 18, 2026 | Grok becomes available on Databricks Agent Bricks. |
| June 17, 2026 | Grok becomes available through Amazon Bedrock, with Grok 4.3 named in the announcement. |
| June 16, 2026 | Grok for PowerPoint launches as a Microsoft Office add-in. |
| June 3, 2026 | Grok Imagine 1.5 Preview adds image-to-video generation through the API. |
| May 29, 2026 | Grok Build 0.1 reaches the xAI API public beta. |
| May 25, 2026 | Grok Build launches as a terminal coding agent for SuperGrok and X Premium Plus subscribers. |
| May 18, 2026 | Skills add reusable preferences and workflow memory across Grok apps. |
| May 6, 2026 | Connectors add app integrations inside Grok on web, iOS, and Android. |
| April 30, 2026 | Custom Voices adds voice cloning for Grok TTS and Voice Agent APIs. |
| April 17, 2026 | SpaceXAI announces standalone speech-to-text and text-to-speech APIs. |
| February 2, 2026 | SpaceX announces its acquisition of xAI. |
| January 28, 2026 | Grok Imagine API adds text-to-video, image-to-video, video editing, and image creation workflows. |
| December 17, 2025 | Grok Voice Agent API launches for developer-built voice agents. |
| November 19, 2025 | Grok 4.1 Fast and Agent Tools API add web search, X search, code execution, file search, and MCP tools. |
| November 17, 2025 | Grok 4.1 rolls out across grok.com, X, iOS, and Android. |
| September 19, 2025 | Grok 4 Fast adds lower-cost reasoning, web and X search, and a 2M-token context window. |
| August 28, 2025 | Grok Code Fast 1 launches for agentic coding. |
| July 9, 2025 | Grok 4 and Grok 4 Heavy launch with native tool use, real-time search, subscriber access, and API availability. |
| February 19, 2025 | Grok 3, Grok 3 mini, and Think mode arrive in beta. |
| December 12, 2024 | Grok reaches more X users and adds search, citations, multilingual support, and new Grok-2 API models. |
| December 9, 2024 | Aurora adds image generation to Grok. |
| November 4, 2024 | The xAI API public beta opens with grok-beta, function calling, system prompts, and a 128K context window. |
| August 13, 2024 | Grok-2 and Grok-2 mini enter beta. |
| April 12, 2024 | Grok-1.5V adds visual understanding for documents, diagrams, charts, screenshots, and photos. |
| March 28, 2024 | Grok-1.5 adds stronger reasoning and a 128K-token context window. |
| March 17, 2024 | xAI releases Grok-1 weights and architecture under the Apache 2.0 license. |
| November 6, 2023 | xAI announces PromptIDE for prompt engineering and interpretability research. |
| November 3, 2023 | xAI announces Grok, an early beta assistant with real-time knowledge through X. |
| July 12, 2023 | Elon Musk announces xAI as a new AI company. |
Grok 4.5, Grok Build, Office add-ins, and enterprise platforms (2026)
Table Of Contents
- July 8, 2026: Grok 4.5 launches for coding and agentic work
- June 18, 2026: Grok arrives in Word
- June 18, 2026: Grok comes to Databricks Agent Bricks
- June 17, 2026: Grok becomes available through Amazon Bedrock
- June 16, 2026: Grok arrives in PowerPoint
- June 3, 2026: Grok Imagine 1.5 Preview improves image-to-video
- May 29, 2026: Grok Build 0.1 reaches the API
- May 25, 2026: Grok Build brings Grok into the terminal
- May 18, 2026: Skills add reusable workflows
- May 6, 2026: Connectors bring apps into Grok
- April 30, 2026: Custom Voices expands Grok voice output
- April 17, 2026: Speech-to-text and text-to-speech APIs launch
- February 2, 2026: SpaceX acquires xAI
- January 28, 2026: Grok Imagine API adds video workflows
- December 17, 2025: Grok Voice Agent API launches
- November 19, 2025: Agent Tools API expands developer workflows
- November 17, 2025: Grok 4.1 rolls out across consumer apps
- September 19, 2025: Grok 4 Fast adds a 2M-token context window
- August 28, 2025: Grok Code Fast 1 targets coding
- July 9, 2025: Grok 4 adds native tool use
- February 19, 2025: Grok 3 arrives with Think mode
- December 12, 2024: Grok reaches more X users
- December 9, 2024: Aurora adds image generation to Grok
- November 4, 2024: xAI opens the API public beta
- August 13, 2024: Grok-2 and Grok-2 mini enter beta
- April 12, 2024: Grok-1.5V adds visual understanding
- March 28, 2024: Grok-1.5 adds a 128K context window
- March 17, 2024: Grok-1 weights and architecture are released
- November 6, 2023: PromptIDE appears
- November 3, 2023: Grok is announced
- July 12, 2023: xAI is announced
July 8, 2026: Grok 4.5 launches for coding and agentic work
SpaceXAI launched Grok 4.5 on July 8, 2026. SpaceXAI called it its strongest model for coding, agentic tasks, and knowledge work. At launch, it was available in Grok Build, Cursor, and the SpaceXAI console. SpaceXAI said EU availability was expected in mid-July 2026.
June 18, 2026: Grok arrives in Word
SpaceXAI released Grok for Word on June 18, 2026. The add-in could turn notes into documents, adjust writing and formatting, and bring web and X research into Word.
June 18, 2026: Grok comes to Databricks Agent Bricks
SpaceXAI announced Grok availability on Databricks Agent Bricks on June 18, 2026. That put Grok inside another enterprise AI development platform.
June 17, 2026: Grok becomes available through Amazon Bedrock
SpaceXAI announced Grok availability on Amazon Bedrock on June 17, 2026. The announcement named Grok 4.3 as the model available on the platform.
June 16, 2026: Grok arrives in PowerPoint
SpaceXAI released Grok for PowerPoint on June 16, 2026. The add-in could turn outlines into slides, expand decks, support research, and revise presentation narratives inside PowerPoint.
June 3, 2026: Grok Imagine 1.5 Preview improves image-to-video
SpaceXAI released Grok Imagine 1.5 Preview on June 3, 2026 through the xAI API. The preview model supported image-to-video generation with clips up to 720p.
May 29, 2026: Grok Build 0.1 reaches the API
SpaceXAI made Grok Build 0.1 available through the xAI API public beta on May 29, 2026. xAI presented it as a fast coding model for API use.
May 25, 2026: Grok Build brings Grok into the terminal
SpaceXAI introduced Grok Build on May 25, 2026 as an early beta for SuperGrok and X Premium Plus subscribers. Grok Build ran from the terminal and supported coding-agent workflows.
May 18, 2026: Skills add reusable workflows
SpaceXAI launched Skills on May 18, 2026 across web, iOS, and Android. Skills added reusable preferences, document generation, deck creation, spreadsheet work, PDF work, workflow automation, and custom skill creation.
May 6, 2026: Connectors bring apps into Grok
SpaceXAI introduced connectors in Grok for web, iOS, and Android on May 6, 2026. Connectors brought app integrations into Grok.
April 30, 2026: Custom Voices expands Grok voice output
SpaceXAI introduced Custom Voices on April 30, 2026. Developers could clone a voice from a short recording and use it across Grok Text to Speech and Voice Agent APIs, with verification safeguards.
April 17, 2026: Speech-to-text and text-to-speech APIs launch
SpaceXAI announced standalone Grok Speech to Text and Text to Speech APIs on April 17, 2026. The APIs supported streaming, timestamps, diarization, multilingual output, and usage-based pricing.
February 2, 2026: SpaceX acquires xAI
SpaceX announced its acquisition of xAI on February 2, 2026.
January 28, 2026: Grok Imagine API adds video workflows
xAI announced the Grok Imagine API on January 28, 2026. The API added text-to-video, image-to-video, video editing, and image creation.
Grok 3, Grok 4, coding models, and voice APIs (2025)
December 17, 2025: Grok Voice Agent API launches
xAI launched the Grok Voice Agent API on December 17, 2025. The API allowed developers to build voice agents that speak multiple languages, call tools, and use real-time data.
November 19, 2025: Agent Tools API expands developer workflows
xAI announced Grok 4.1 Fast and the Agent Tools API on November 19, 2025. The API added server-side web search, X search, code execution, file search, and MCP tools.
November 17, 2025: Grok 4.1 rolls out across consumer apps
xAI released Grok 4.1 on November 17, 2025 across grok.com, X, iOS, and Android. xAI said the update improved usability, style, personality, and hallucination rates.
September 19, 2025: Grok 4 Fast adds a 2M-token context window
xAI announced Grok 4 Fast on September 19, 2025. The model added lower-cost reasoning, web and X search, unified reasoning and non-reasoning behavior, and a 2M-token context window.
August 28, 2025: Grok Code Fast 1 targets coding
xAI introduced Grok Code Fast 1 on August 28, 2025. The model targeted agentic coding and shipped through API access and launch partners.
July 9, 2025: Grok 4 adds native tool use
xAI announced Grok 4 and Grok 4 Heavy on July 9, 2025. The models added native tool use, real-time search, SuperGrok and Premium+ access, and API availability.
February 19, 2025: Grok 3 arrives with Think mode
xAI announced Grok 3 in beta on February 19, 2025. The launch introduced Grok 3, Grok 3 mini, and Think reasoning models. xAI tied the training to its Colossus system.
Grok-1.5, vision, API beta, and image generation (2024)
December 12, 2024: Grok reaches more X users
xAI announced wider Grok availability on December 12, 2024. Grok reached more X users and added web search, citations, a Grok button, better multilingual support, and new Grok-2 API models.
December 9, 2024: Aurora adds image generation to Grok
xAI added image generation to Grok through Aurora in December 2024. Aurora was described as an autoregressive image model.
November 4, 2024: xAI opens the API public beta
xAI launched its API public beta on November 4, 2024. The early API included grok-beta, a 128K context window, function calling, system prompts, and REST patterns familiar to AI developers.
August 13, 2024: Grok-2 and Grok-2 mini enter beta
xAI announced Grok-2 and Grok-2 mini in August 2024 for chat, coding, and reasoning.
April 12, 2024: Grok-1.5V adds visual understanding
xAI introduced Grok-1.5V on April 12, 2024. The preview model could process documents, diagrams, charts, screenshots, and photographs.
March 28, 2024: Grok-1.5 adds a 128K context window
xAI announced Grok-1.5 on March 28, 2024. It raised the context window to 128,000 tokens for longer prompts, documents, and code.
March 17, 2024: Grok-1 weights and architecture are released
xAI released Grok-1 weights and architecture under the Apache 2.0 license on March 17, 2024. The company described Grok-1 as a 314B-parameter Mixture-of-Experts base model.
xAI launch, Grok beta, and PromptIDE (2023)
November 6, 2023: PromptIDE appears
xAI announced PromptIDE three days after the Grok announcement. The tool supported prompt engineering and interpretability research.
November 3, 2023: Grok is announced
xAI announced Grok on November 3, 2023. The early beta assistant used Grok-1 and had access to real-time information from X.
July 12, 2023: xAI is announced
Elon Musk announced xAI in July 2023. The company later released Grok as its first major public AI product.
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FAQs
What is the latest Grok model in this timeline?
The latest major model in this timeline is Grok 4.5, announced on July 8, 2026. SpaceXAI described it as a model for coding, agentic tasks, and knowledge work.
When did Grok launch?
Grok was announced on November 3, 2023. The first release was an early beta assistant connected to real-time information through X.
When did Grok get API access?
xAI launched the API public beta on November 4, 2024. The early API had grok-beta, a 128K context window, function calling, system prompts, and REST patterns familiar to AI developers.
When did Grok become multimodal?
Grok became multimodal with the Grok-1.5V preview on April 12, 2024. The preview accepted visual inputs such as documents, diagrams, charts, screenshots, and photos.
When did Grok add image and video generation?
Image generation arrived through Aurora on December 9, 2024. Video and richer media workflows followed with the Grok Imagine API on January 28, 2026.
When did Grok focus on coding?
Grok’s coding path starts in 2025. Grok Code Fast 1 launched on August 28, 2025, Grok Build arrived on May 25, 2026, Grok Build 0.1 reached the API on May 29, 2026, and Grok 4.5 launched on July 8, 2026 with coding and agentic work as core use cases.
What was SpaceXAI called before?
SpaceXAI’s Grok product history began under xAI. SpaceX announced its acquisition of xAI on February 2, 2026.
