# Grok‑1

Grok‑1 is an AI model released by SpaceXSI on Nov 3 2023. It has 314B parameters, an 8k context window and open weight.

## Facts

| Field | Value |
| --- | --- |
| Model | Grok‑1 |
| Developer | SpaceXSI |
| Release date | Friday, Nov 3 2023 |
| Licensing | Open Weight |
| Parameters | 314B |
| Context window | 8k |

## About Grok‑1

Grok-1 was the model behind xAI's first Grok assistant, introduced in November 2023. The product was presented as a conversational assistant with access to information from X and a distinctive, informal tone. Initial access was limited. The chatbot's access to X was a product capability, separate from the knowledge stored in the model's weights.

In March 2024, xAI published the Grok-1 base-model weights under Apache 2.0. That release described a 314-billion-parameter mixture-of-experts model and did not include the chat fine-tuning or live retrieval system used by the assistant. For anyone comparing downloadable Grok-1 with the original chatbot, this distinction matters: the open base checkpoint was a foundation for further work, rather than the complete X-connected service.

## Questions and answers

### When was Grok‑1 released?

Grok‑1 was released by SpaceXSI on Friday, Nov 3 2023.

### Who made Grok‑1?

Grok‑1 was built by SpaceXSI. Elon Musk's AI company building the Grok series of models. Founded in 2023 as xAI, merged into SpaceX as SpaceXAI in 2026 and renamed SpaceXSI (SpaceX Super Intelligence) that October. Cursor (Anysphere) and its Composer coding models were acquired in 2026 and are tracked here.

### What is the context window of Grok‑1?

Grok‑1 has a context window of 8k. Providers may specify separate input and output token limits.

### How many parameters does Grok‑1 have?

Grok‑1 is reported at 314B parameters.

### Is Grok‑1 open source?

Partly. Grok‑1 is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.

### What came before and after Grok‑1?

It was followed by Grok‑1.5 on Mar 28 2024.


---

Canonical page: https://aireleasetracker.com/model/xai/grok‑1
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.