Four Models Drop in One Day: GPT-6 Sol, Claude 5.5, Grok 4.7, Xiaomi MiMo-V2.6

ivan_bezdomny · x · 2026-09-23

A wild day with four model releases: OpenAI's GPT-6 Sol cut Astra prices without clear capability gains; Claude Opus 5.5 oddly performs better at "med" effort than higher effort and isn't token-efficient; Grok 4.7 reviews are mixed to negative (more tokens, not clearly better than 4.6); and Xiaomi's open-weights MiMo-V2.6 looks very promising though untested by the author. Overall verdict: a set of underwhelming releases.

Related event: Claude Opus 5.5, GPT-6 Sol and More Launch on the Same Day(7 posts)→

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