Why we said Use
What it is
A visual builder for LLM flows you host yourself. See the official page. This profile describes public documentation, not a Loaded Tokens hands-on test.
Who it is for
People who want a flow chart in front of a model API or a local server. The recommendation is scoped to that job.
The evidence behind Use
Apache 2.0 is the software license. The keys you paste into a node are your account. The source page is the receipt. No speed ranking or reliability score is implied.
Pricing and the catch
Free under Apache 2.0. Any model you connect is billed separately. Public pricing or license checked November 7, 2026. Amounts are as stated on that page. Tax, region, annual billing, and extra usage can change the bill.
A sensible first workflow
Build one flow that calls one model and logs the prompt. This is a suggested evaluation, not a test we ran.
Bottom line: Use it when a diagram is the right way to see the chain.