Thariq flips to MCP over CLI, a ChatGPT co-inventor ships a model that can't write text, Pocock hardens /retro, Fable brings its own edit tool

Thariq Shihipar from the Claude Code team says he did not expect it, but MCPs are now better than CLIs for most integrations: deferred tools fix the context bloat, MCP is stateless, and servers can return images. Tobi Lütke's caveat is that this holds only if the model can drive MCPs through a REPL, and Thariq admits code-mode implementations have been less useful than he hoped. Diogo Almeida, who worked on the RLHF research behind ChatGPT, launched TypeSafe AI and Jev , a frontier model that cannot generate text at all: typed decisions with calibrated probabilities, 70 to 500 ms, $0.042 per million input tokens, output free, with a Doom demo