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Family4 measured versions
26thout of 71General intelligence, its best version: Grok 4.6, index 157.9
Measured versions43 with a profile
First release30/4/2026Grok 4.3
Latest release21/9/2026Grok 4.7

Lineage

Versions
Grok 4.7Grok 4.6Grok 4.5Grok 4.3
Assistants that offer its latest version
PerplexityGrok

Versions without a link: below the threshold for a profile (3 public measurements, or a place in the top 10 of a benchmark).

Grok versions, general intelligence and release date

Epoch AI ECI index and its 95% interval; 3 versions released in 2026 and measured by the ECI index, the most recent highlighted; the rank of each version in each benchmark, in the "Table" tab

JulAugSepOct153155158160General intelligence index (ECI)Grok 4.7Grok 4.6Grok 4.5

Dot: the index measured, at the release dateLine: the 95% interval

Sources: Epoch AI, "Capabilities & benchmarking"; LMArena. CC BY 4.0 licence.

AI Impact, by Projet Celsius

Rank among models released in 2026 and measured by the benchmark. Sources: Epoch AI and LMArena (CC BY 4.0), data as of 10 November 2026. An underlined name links to the version profile.

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