Rumors: Anthropic's Next Model Marginal, GPT-6 Seen as Major Competitor

robleclerc · x · 2026-08-15

Comments suggest Anthropic's current Fable model has been underwhelming, while 5.6 holds its own with more generous limits. Rumors indicate the next iteration of Mythos offers only marginal improvement, whereas whispers of GPT-6/Astra/Spud suggest it is significantly better than Mythos.

Observers note this could be OpenAI's chance to undermine rivals' momentum ahead of potential IPOs. A cited report from Anthropic confirms notes on unreleased models with frontier capabilities.

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