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Close-up of a painted hand wearing a gold ring against embroidered fabric, with vivid orange and teal neon highlights. Varne is Narev’s free, open source infrastructure cost tool. It helps you bring infrastructure COGS into your understanding of AI costs.

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Documentation versions

Varne v0

Existing deployment, provider connections, billing imports, and FOCUS format guides.

Varne v1 development

Follow the developing v1 implementation. Its README and setup can differ from v0.
Varne v1 is in development. The guides in the v0 section describe Varne v0. Use the commands, images, and configuration for that version together. Do not combine them with setup from the developing v1 branch.
For app-level model usage, see AI-billing. For catalog-based inference estimates, see the Pricing API.
Last modified on October 29, 2026