This quietly ends the whole claude vs gpt argument
Moon dev: "openai's newest model is literally the best at math on the planet and i can prove it in one screen" "i'm a die hard claude guy and even i can't ignore what just happened to opus 5"
Fable 5.1 vs fable 5 vs opus 5
Cool experiments by thehypedotnews the test gave Fable 5, 5.1, and Opus 5 the same reference scenes and asked each to recreate them procedurally from scratch in Three.js. Fable 5 was both the cheapest and the fastest, but fable 5.1 stood out on
Fable 5.1 vs fable 5 vs opus 5 – three lord of the rings landmarks, built in 3d from one image
The setup: one reference image per scene, one html file per build, everything procedural – no meshes, no textures, no image files, nothing past threejs from a cdn. each model reads
Claude Fable 5.1 released. However, the official documentation itself says, ``For most uses, start with Opus 5.''
I/O prices remained the same, with only 1/4 of the price for cache reads going down. There are also three changes that will cause the current code to no longer work as is. 1️⃣ Fable 5.1 released, but be careful when switching 2️⃣
You have reached the end of the archive
All of Claude Opus 5