Vaudit, a company building an independent verification layer across AI, cloud and enterprise billing, launched TokenAudit on June 30, 2026, in San Francisco to help companies audit AI bills against contract terms and recover money from billing errors. Since March, Vaudit has reviewed $34 million in AI spending across 60 companies and identified nearly $1.7 million in mistaken overcharges, with roughly 80% credited back by providers or cloud platforms, including AWS, Google Cloud, Microsoft Azure, Anthropic and OpenAI. Worldwide AI spending is projected to reach $2.59 trillion in 2026, up 47% year over year, with AI infrastructure expected to account for more than 45% of total spend, according to Gartner. Vaudit customers install a software development kit inside their AI environment to capture raw usage data, reconcile it against invoices and flag discrepancies. The company has traced billing errors to five recurring patterns, including customers billed at premium rates for cheaper or older models, prompts that returned no output but were billed anyway, "retry storms," billing that continued through provider outages, and orchestration errors. Roughly half of the billing decisions Vaudit reviews run through cloud providers such as AWS Bedrock, Google Vertex, and Microsoft Azure. Clear-cut billing errors are typically credited back within 48 to 96 hours.