E163: Perplexity AI nears $9B valuation, 3x from last round; Vuori $5.5B valuation tender; CoreWeave hires bankers for IPO; Anthropic partners with Palantir, expands in defense sector; Mistral launches AI moderation API; ByteDance/TikTok vs Canada; SpaceX | This Week in Pre-IPO Stocks | Podwise