Attributing LLM cost to each customer without forcing a proxy

Attributing LLM cost to each customer without forcing a proxy targets a $6.0B = 2M businesses × $3K ACV total addressable market with medium saturation and a year-over-year growth rate of 40% YoY based on rapid LLM adoption and growth in AI developer tools (industry synthesis of market reports and developer surveys).

Key trends driving demand: Trend — Developers are embedding LLMs across B2B products, creating a fast-growing need for cost observability and per-customer billing.; Trend — Increased scrutiny around data flows and vendor risk makes non-proxy solutions that keep raw data in customer control more attractive.; Trend — Rising LLM API costs and usage-based billing models are pushing product teams to track per-customer profitability and optimize model selection.; Trend — Better edge and serverless tooling plus SDKs make lightweight request tagging and server-side correlation feasible without major infra changes..