Model
grok-4
Appears alongside
Featured in threads
Tracks
- Models & capabilities 2
- Culture & impact 1
- Safety & alignment 1
- Benchmarks & progress 1
xAI releases Grok 4.1
xAI tuned the update for personality and reliability rather than raw reasoning, reporting a two-week blind test in which users preferred it to Grok 4 64.8% of the time.
Models & capabilities
xAI's sexualised Grok companion 'Ani' draws child-safety and moderation criticism
The National Center on Sexual Exploitation said minimal testing got the companion to describe itself as a child and 'sexually aroused by being choked'; the app carried a 12+ rating.
Culture & impact · Safety & alignment
xAI releases Grok-4
xAI reported 44.4% on Humanity's Last Exam for its multi-agent "Heavy" tier, ahead of Gemini 2.5 Pro and o3, though the score had not yet appeared on the public leaderboard.
Models & capabilities · Benchmarks & progress