Tokenwise

Tokenwise is an AI LLM observability tool that gives developers production visibility into every large language model call and then cuts spend without touching quality. It installs as a drop-in proxy with under 50ms overhead, so it tracks cost, latency, errors, and output quality in real time across providers like OpenAI, Anthropic, and Google without requiring code changes. Once it surfaces inefficiencies, Tokenwise offers one-click fixes such as model swaps, semantic caching, and prompt trimming, each replayed against a quality baseline before deployment, with automatic rollback if a regression is detected. It also supports A/B testing on live traffic and sends alerts to Slack or Discord. The product targets developers and small teams running LLM features in production with monthly bills between $50 and $2,000, and claims to reduce cost 20–30% while holding quality steady. A 7-day free trial requires no card, and early subscribers can lock in a permanent discount. For teams that want to understand and control their model spend rather than guess at it, Tokenwise is positioned as the monitoring and optimization layer between the application and the model APIs.

Developers and small teams scaling LLM API usage use it to analyze real request traffic and cut model costs without a full observability setup.