Introducing Claude Sonnet 4.5 - Anthropic

ModelsAlibaba's open Qwen 3.5 takes aim at GPT-5 mini and Claude Sonnet 4.5 at a fraction of the cost - the-decoder.comFeb 26

ModelsAlibaba's new open source Qwen3.5-Medium models offer Sonnet 4.5 performance on local computers - VentureBeatFeb 25

ModelsMoonshot's open source Kimi K2 Thinking outperforms GPT-5, Claude Sonnet 4.5 - VentureBeatNov 6 · 2 sources

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