The day in AI
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29 Jun 2026Meituan (LongCat)LongCat-2.0 1.6T-total MoE with 1M context, trained on 35T+ tokens entirely on Chinese AI accelerators; 59.5 on SWE-bench Pro, weights under MIT.29 Jun 2026CognitionDevin Fusion Devin Fusion routes work between a frontier lead model and a cheaper sidekick, claiming Fable 5-level quality at 60% lower cost.