Three Frontier Models Launched in Eight Days. The Model Wasn't the Competitive Advantage — the Router Was.
GPT-5.6, Claude Sonnet 5, and Grok 4.5 all went generally available within an eight-day window this month, each winning a different benchmark and none winning outright. Microsoft just spent $2.5 billion proving where the real bottleneck sits — and it isn't the model.
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