antirez (Salvatore Sanfilippo, creator of Redis) posted about testing Fable, an early Claude model: "While Fable is too limited in the amount of tokens, speed and refusals, it is truly a pretty impressive increment in capabilities. It clearly allows to do things that before were impossible: it is a lot like talking with an expert programmer in terms of more general ideas." The claim separates two axes: usability constraints (tokens, speed, refusals) from capability level. Even with the constraints intact, he frames the capability jump as opening a new mode of interaction, general-idea discussion at expert-programmer depth, not just faster or more accurate code output. **Cross-Domain Connections**: [[Antirez on Anthropic Needing a Product Vision]] is antirez's separate, more skeptical take on Anthropic's business execution, applying the same close-reading of his own claims. [[Antirez Treats Model Capability as a Signal Separate From User Experience]] is the philosophy behind why he rates the model this way despite its usability limits. [[Fable Reasons Well About Niche Underrepresented Code Domains]] is his follow-up on where the capability jump shows up most. ## Source - [[Antirez Fable Feedback]] — X (Twitter) thread, @antirez, June 11, 2026