Sources: AI inference-chip startup Etched is in early talks to raise funding at a $40B-$50B valuation, up from $21B in August (Marina Temkin/TechCrunch)

Marina Temkin / TechCrunch: Sources: AI inference-chip startup Etched is in early talks to raise funding at a $40B-$50B valuation, up from $21B in August — Although it's only been a couple of months since Etched raised $700 million at a $21 billion valuation, the AI chip startup is already being…