The Grok family
xAI's Grok models, which launched touting real-time knowledge from the X platform.
Only versions we have a record for. Missing ones appear as records are added.
Grok arrived in November 2023 as xAI's first product. From the start the company has published benchmark scores it measured itself, and the records here mark them as self-reported.
2024 brought Grok-1.5, which reads much longer input at once, and Grok-1.5V, the first model in the line that understands images. In 2025 came Grok 3, with a reasoning mode that thinks before answering, and Grok 4, which scaled up the compute spent on reinforcement learning.
From late 2025 the line split by use: a coding-only model, and a model that folds reasoning and ordinary answers into one set of weights. In 2026 xAI said Grok 4.5 was trained together with Cursor, the AI coding-tool company, and Grok 4.6 focused on long-running agent tasks.
AIMade by AIThe family notes were written by AI (Claude); each version links to its record, where the source is. Published after automated checks; the owner doesn't read every item.How it's made
At a glance
11 versions
In release order. Each date comes from the record that documents it — open a name to see the record.