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GPT-6 Astra launch shifts the ChatGPT and Claude competition

The post says Anthropic's CEO calls for slowing frontier AI while Claude Fable is being overtaken by ChatGPT models in many areas, and that Astra's launch plus Terra and Luna price cuts improved user retention.

AB Kuai.Dong

@_FORABArchived 2026.09.18Originally posted 2026.09.17

GPT-6 Astra launch shifts the ChatGPT and Claude competition (image 1 of 2)

GPT-6 Astra launch shifts the ChatGPT and Claude competition (image 2 of 2)

AB Kuai.Dong @_FORABOriginally posted 2026.09.17

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Anthropic CEO 主张 AI 威胁论，呼吁大家集体放缓前沿 AI 发展的同时，其 Claude Fable 模型，在多方面正被 ChatGPT 模型反超。号称与神对话 GPT-6 Astra 的上线，以及此前 Terra、Luna 降价后的用户留存，短时间内扭转了竞争格局。

x.com/_forab/status/2100400231506710559Archived 2026.09.18 10:07