| 1. Claude Opus 5 (High) |
| 2. Claude Opus 5 (Max) |
| 3. Claude Fable 5 (High) |
| 4. GPT 5.6 Sol (xHigh) |
| 5. Claude Opus 4.8 (High) |
The BriefOpenAI told Cursor, one of the most popular AI coding tools, that it will cut off its models on November 12. The reason is business, not tech: SpaceX just bought Cursor, and OpenAI says it cannot trust Musk-owned companies to follow its rules. If you code with Cursor you are not stuck, since other models still run there and your own OpenAI key keeps working. The lesson for everyone: any AI tool you rent can lose its engine overnight, so know which model your tools run on and have a fallback.
Level UpThis week, read Cal Paterson's short post on agent memory as a file format. It shows a dead-simple way to give an AI agent a memory: plain Markdown files plus an optional search index, instead of a complex memory service. If you build or run agents, this is a pattern you can copy in an afternoon. Paterson: agent memory as a simple file format, not a service