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Big AI strikes back against open source as Nvidia targets AI development leadership

OpenAI and Anthropic are rolling out new AI models as open-source rivals press them on cost efficiency. Meta also unveiled its Muse Spark 1.3 large language model, saying it has narrowed performance gaps with major AI companies. Separately, interest in open-source AI is growing after Nvidia officially announced it would acquire open-source model-sharing platform Hugging Face for $12.9 billion. The article also rounds up moves by Google, Perplexity, Adobe and others, plus domestic developments and funding news.