Marina Lyubimova
⬤ Grok's growth is picking up speed. Month-over-month expansion reached 15.81% in January 2026, continuing a streak that started back in November 2025 with a 9.85% gain. December came in at 13.78%, and January pushed the trend even further. As Grok's US AI market share jumped to 17.8% in one year, these monthly numbers start to make a lot more sense.
⬤ Each month has simply outperformed the last - 9.85%, then 13.78%, then 15.81%. The chart tracking "Grok MoM Growth (%)" makes the pattern hard to ignore. Whether this reflects more users coming on board, deeper engagement from existing ones, or broader integration into everyday workflows, the direction is clear.
Each month's performance outpaced the last - a pattern that points to real, structural momentum rather than a one-time spike.
⬤ This acceleration doesn't exist in a vacuum. The wider AI landscape is shifting, and Grok appears to be one of the main beneficiaries. Grok surged to 17.8% market share as ChatGPT fell 28 points, which gives real context to why these monthly growth numbers keep climbing. When a major competitor loses ground, that engagement has to go somewhere.
⬤ Three straight months of accelerating growth in a market as competitive as AI isn't a coincidence - it's a signal. Whether the trend holds into Q1 2026 will be worth watching, but for now the data suggests Grok is building the kind of momentum that tends to compound.
Marina Lyubimova
