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This paper audits temporal leakage in financial news NLP benchmarks across multiple models, finding that random splits inflate performance metrics and identifies M&A events as a category with a localized positive signal under chronological evaluation.
Stripe is in talks to acquire AI model marketplace OpenRouter for roughly $10 billion, marking a major expansion beyond payments. OpenRouter allows developers to access and switch between multiple AI models, and the deal would follow Stripe's broader push into AI infrastructure and its separate bid for PayPal.