TheTechno Optimist.

GrokxAI—xAI releases Grok 4.7, a larger model aimed at coding and agent tasksColossus (Memphis & Southaven)xAI—xAI's Colossus reaches 2 GW capacity with 555,000+ GPUs, world's largest single-site AI training clusterxAI—SpaceX acquires xAI, valuing the combined company at $1.25TColossusxAI—Musk says Colossus 2 in Memphis is operational as the first gigawatt-scale AI training clusterGrokxAI—xAI releases Grok 4.1ColossusxAI—Anthropic agrees to rent all of Colossus 1's capacity from SpaceX through May 2029ColossusxAI—Google agrees to pay SpaceX $920M a month for about 110,000 GPUs of xAI capacity, from October 2026GrokxAI—xAI releases Grok 4.5GrokxAI—xAI releases Grok 4.6ColossusxAI—Mississippi issues a permit for a permanent 1.2 GW gas plant in Southaven to power Colossus 2

Colossus (Memphis & Southaven)

by xAIUS

DeployStage 4 of 5

Colossus 2 (1 GW, 550k GPUs) operational Jan 2026; 2 GW complex with on-site power. Colossus 3 planned.

Updated Jan 2026Checked 10 Oct0 updates this week

Milestones

Next · On-site power generation with gas turbines and batteries
  1. Colossus 1 operational with ~500 MW and ~230,000 GPUsJul 2024Complete.
  2. Colossus 2 reaches 1 GW, ~550k GPUs, largest single-site AI datacenterJan 2026Complete.
  3. Memphis complex reaches 2 GW total capacityJan 2026Complete.
  4. On-site power generation with gas turbines and batteriesTarget 2026Current milestone.

Most important updates

Upcoming

  1. 2026On-site power generation with gas turbines and batteries (next)
  2. Q4 2026Colossus 3 construction and expansion to 2.5-3 GW
Primer