E108: Scale AI $13 valuation, Cohere $5b valuation, Amazon $4b total into Anthropic, $26b Canva buys Affinity, xAI launches Grok-1.5, +2.65% 2024 Pre-IPO Stock Vintage Index | Pre-IPO Stock Market Update – Mar 29, 2024 | This Week in Pre-IPO Stocks | Podwise