# Grok‑2

Grok‑2 is an AI model released by SpaceXSI on Aug 13 2024. It has a 128k context window.

## Facts

| Field | Value |
| --- | --- |
| Model | Grok‑2 |
| Developer | SpaceXSI |
| Release date | Tuesday, Aug 13 2024 |
| Licensing | Closed |
| Context window | 128k |

## About Grok‑2

Grok-2 entered beta in August 2024 alongside Grok-2 mini, expanding xAI's assistant lineup into a larger model and a smaller alternative. xAI described improvements in reasoning, coding and following instructions, and made the beta available through Grok on X. The rollout was staged, with developer API access described separately from the initial consumer release.

The launch emphasized text and vision understanding, while the Grok product also introduced image generation powered by Black Forest Labs' FLUX.1. That image generator was a separate model integrated into the experience. Grok-2's release is therefore useful to read on two levels: an update to xAI's language model and an expansion of what users could do inside the assistant.

## Questions and answers

### When was Grok‑2 released?

Grok‑2 was released by SpaceXSI on Tuesday, Aug 13 2024.

### Who made Grok‑2?

Grok‑2 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‑2?

Grok‑2 has a context window of 128k. Providers may specify separate input and output token limits.

### Is Grok‑2 open source?

No. Grok‑2 is a closed model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.

### What came before and after Grok‑2?

SpaceXSI's previous tracked release was Grok‑1.5 on Mar 28 2024, 138 days earlier. It was followed by Grok 3 on Feb 17 2025.


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Canonical page: https://aireleasetracker.com/model/xai/grok‑2
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.