SpaceXAI
20 releases · Nov 2023 – Aug 2026
Elon Musk's AI company building the Grok series of models. Founded in 2023 as xAI, now part of SpaceX. Cursor (Anysphere) and its Composer coding models were acquired in 2026 and are tracked here. AI Release Tracker has logged 20 SpaceXAI models, from Grok‑1 (Nov 3 2023) through Grok 4.6 (Aug 12 2026). Every release below links to a dedicated page with benchmarks, parameters, and context window.
A new SpaceXAI model typically arrives about every 31 days, with the next projected around Thursday, Sep 10, 2026. Its strongest benchmark results to date include Next.js Evals (81%, on Composer 2.5), SWE-Bench Pro (64.7%, on Grok 4.5), and Terminal-Bench 2.0 (69.3%, on Composer 2.5). 1 of the 20 models tracked here is open-weight or open-source; the rest are proprietary.
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Release cadence
Releases by year
Year-over-year totals for SpaceXAI. The current year is partial.
Releases by day of week
Which days of the week SpaceXAI ships on.
Best benchmark scores
All releases
20 releases · Nov 3 2023 – Aug 12 20262026
7 releases2025
10 releases2024
2 releases2023
1 releaseFrequently asked questions
The most recent SpaceXAI model tracked on AI Release Tracker is Grok 4.6, released on Aug 12 2026.