AI Engineering Blog | Felix Schmidt

Anthropic Rents Colossus 1 – The Surprising Compute Deal with SpaceX/xAI

Anthropic has signed a deal to use all compute capacity at SpaceX's Colossus 1 data center in Memphis – over 220,000 NVIDIA GPUs, available within a month. What's behind the deal, why was Colossus 1 available in the first place, and what risks come with an infrastructure contract with a direct competitor?

AI Engineering

Surviving Session Crashes: How Anthropic, OpenAI, xAI and Google Handle Agent State in 2026

What happens to your carefully built context when the machine reboots or your agent session crashes? A practical comparison of the native mechanisms — Memory Tool, Responses API, store_messages, Memory Bank — plus the hybrid pattern that holds up best in practice.

AI Models
GPT‑5.5 vs. Claude Opus 4.7 vs. China: Who Leads the Field in April 2026?
May 1, 2026
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AI
Claude Managed Agents: Run Autonomous AI Agents Without the Infrastructure Headache
Apr 12, 2026
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AI
Time & Material Is Almost Dead. Here's What Replaces It.
Apr 9, 2026
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AI, code & architecture — from practice.

Claude Code Worktrees: Setting Up Parallel Work with `--worktree` the Right Way

Anthropic Rents Colossus 1 – The Surprising Compute Deal with SpaceX/xAI

Surviving Session Crashes: How Anthropic, OpenAI, xAI and Google Handle Agent State in 2026

GPT‑5.5 vs. Claude Opus 4.7 vs. China: Who Leads the Field in April 2026?

Claude Managed Agents: Run Autonomous AI Agents Without the Infrastructure Headache

Time & Material Is Almost Dead. Here's What Replaces It.