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Guides2026-03-203 min read

Unified Cost Tracking Across OpenAI, Anthropic, and LangChain

One observability layer for the three integration paths almost every production stack uses.

Most production LLM stacks are not single-provider. A typical setup calls OpenAI for chat, Anthropic for long-context reasoning, and routes some workflows through LangChain. Fragmented per-provider dashboards make it hard to answer the basic question: which model is actually costing us money this week?

The AgentCost SDK now instruments all three paths through a single import. No wrappers, no decorators, no proxy URLs — lightweight interception attaches to the provider clients you already use and reports usage, tokens, and cost in a normalized schema.

Once events are flowing in, the dashboard surfaces per-model and per-agent breakdowns side by side, so model-routing decisions become a one-look exercise instead of a multi-tab spreadsheet.