Theo's Fable 5.2 review: evals, effort levels and subscription math

Practical numbers on Fable 5.2: where it trails Opus 5.5 on code review and analysis, why max effort hurts coding, and how Fable limits eat into a $200 plan, so you can budget and choose models.

• benchmark — A standard public test set for comparing AI models — the shared scoreboards behind every "model X beats model Y" claim.
• eval — A repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.

• postT3 Code 0.1.3 redesigns app and slims agent payloads
• postWhat a Harness Is, and How It Differs From the Interface
• postT3 Code Stable ships 1,400 changes, adds idle thread compaction
• postT3 Code ships in-thread visualizations for agents

Checking sign-in…

Loading comments…