Question 1

What is a Cloudflare Workers AI Neuron and how is it calculated?

Accepted Answer

A Neuron is Cloudflare's normalized unit for measuring the GPU compute an AI request consumes on Workers AI, billed at $0.011 per 1,000 Neurons. Each model has its own Neuron rate per unit of work: Llama-3.2-1B costs 2,457 Neurons per million input tokens and 18,252 per million output tokens; the larger Llama-3.1-70B costs 26,668 per million input tokens and 204,805 per million output tokens; Flux-1-schnell image generation costs 4.80 Neurons per 512×512 tile plus 9.60 Neurons per step; BGE-small embeddings cost 1,841 Neurons per million input tokens and BGE-large costs 18,582. Because every model type converts into the same Neuron unit, a text-heavy workload and an image-heavy workload can be compared and billed on one line.

Question 2

How much of Cloudflare Workers AI is free?

Accepted Answer

Every account gets 10,000 Neurons per day free, on both the Workers Free and Workers Paid plans, resetting daily at 00:00 UTC. That allowance is a single shared pool across your entire account — it doesn't matter whether the Neurons come from text generation, image generation or embeddings, they all draw from the same daily 10,000. Once you exceed it on a given day, the overage is billed at $0.011 per 1,000 Neurons, which requires being on the Workers Paid plan.

Question 3

Why does mixing model types in one app matter for the Neuron bill?

Accepted Answer

Because the 10,000 Neurons/day free allowance is shared across every model you call, not allocated per model. An app that calls a small text model, generates a few images and embeds documents all draws down the same daily pool, so the order and mix of calls determines how fast you burn through the free tier. Model choice matters enormously too: Llama-3.1-70B burns roughly 11x more Neurons per input token and 11x more per output token than Llama-3.2-1B, so switching to the larger model on a busy day can turn a $0 bill into a paid one even with identical traffic volume.

Question 4

How does Workers AI Neuron pricing compare to raw token pricing on OpenAI or Anthropic?

Accepted Answer

Hyperscaler LLM APIs like OpenAI and Anthropic bill directly in dollars per million tokens, with a different input and output rate for every model and no unified daily free allowance shared across model types — see our context window cost calculator and 387-model price comparison for that shape. Workers AI instead converts every model's compute cost into one abstract unit (the Neuron) billed at a single flat rate of $0.011 per 1,000 Neurons, with a 10,000 Neuron/day account-wide free tier that applies no matter which models you mix. The tradeoff is that you're running smaller, Cloudflare-hosted open models (Llama, Flux, BGE) at the edge rather than frontier closed models, in exchange for one predictable per-unit rate and free daily headroom.

Kostenrechner für KI-Neuronen von Cloudflare Workers

Neuronenaufschlüsselung nach Arbeitslasttyp

Monatliche Kosten pro Textanfrage/Tag

Wie dies mit anderen Tools verbunden ist

So funktioniert dieser Rechner

Häufig gestellte Fragen

Was ist ein Cloudflare Workers AI Neuron und wie wird es berechnet?

Wie viel Cloudflare Workers AI ist kostenlos?

Warum ist das Mischen von Modelltypen in einer App für den Neuron-Gesetzentwurf wichtig?

Wie sind die Preise für Workers AI Neuron im Vergleich zu den Roh-Token-Preisen auf OpenAI oder Anthropic?