Diminishing Returns? Lambert Weighs Fable Share Debate vs GPT 5.6 Adoption
omooretweets · x · 2026-08-25
Reacting to FT's Fable market share data, a16z's Martin Casado cautioned against jumping to conclusions — cost, speed, aggressive OpenAI moves, ZDR, open source, bad press, or biased data could all be at play.
Nathan Lambert responded:
- There's a valid case this is an Anthropic fumble on Fable, especially pricing and zero data retention
- GPT 5.6 Sol adoption data looks quite different
- Bigger picture: intelligence gains show diminishing returns for many tasks, so products may no longer auto-switch to each new frontier model — good news for app-layer builders looking to cut COGS
Related event: Diminishing Returns in Frontier AI Spark Shift Toward Cheaper Models(4 posts)→
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