One price. Any input.
Structured data out.

In the simplest case, yes — one document in, one function call, one structured JSON output. But bem supports workflows: composable chains of functions that handle more complex logic. For example, if you receive mixed document types (invoices, receipts, packing lists), you might use a Route function to classify the input and then a Transform function to extract the right schema. That's two function calls. Each function in the workflow is billed as a separate call. You control the pipeline, so you control the cost.

A function call is a single invocation of a bem function — Route, Split, Transform, Join, Analyze, Enrich, Eval, or Payload Shaping. Each function takes an input (any unstructured data), applies trained semantic logic, and returns structured JSON. One function, one call, one price. No hidden charges for pages, tokens, or file size.

Workflows are composable chains of functions that define how your data is processed end-to-end. You define the path, the logic, and the fallback states — bem executes it with full traceability. A simple use case might be a single Transform function. A complex one might Route incoming documents by type, Transform each into the right schema, Enrich with external data, and Join the results. Each function in the chain is a separate call, giving you granular control over cost and logic.

It doesn't matter how many pages your document has. A 1-page invoice and a 50-page contract both cost the same per function call — $0.09 at the base tier. This is fundamentally different from per-page tools where costs scale linearly with document length. We price per function call because you're paying for the semantic outcome, not the page count.

No. bem charges per function call only. There are no per-page fees, no token-based billing, and no surcharges for file size or input type. Whether you send a 1-page PDF or a 30-minute audio recording, the function call price is the same.

Any unstructured input: PDFs, documents, images, audio, video, WhatsApp and SMS threads, and email conversations with attachments. One API, one price, regardless of the source. This isn't OCR or transcription — it's a full pipeline from unstructured input to structured, semantically meaningful JSON.

Pricing is graduated, not flat. You only pay the lower rate on calls above each threshold. For example, at 15,000 calls per month, the first 100 are free, the next 9,900 are billed at $0.09 each, and the remaining 5,000 at $0.07 each. Your blended rate decreases automatically as volume grows — no need to commit to a new tier.

Every account gets 100 free function calls every month — no credit card required. This includes the full platform: all eight primitives, corrections and golden datasets, accuracy scoring, and human review workflows. There are no feature gates. The free tier resets monthly.

Fine-tuning is $500 per month per trained function. This includes custom model training on your schemas and data, automatic retraining when you submit corrections, model versioning, and instant rollback. You're not paying for inference — the fine-tuned model runs at the same per-call price. The monthly fee covers the engineering and infrastructure to keep your trained functions accurate and up to date.

Nothing. The Corrections API is free. When a function call returns a result that needs fixing, you submit a correction and it's added to your golden dataset. This feedback loop improves accuracy over time and is foundational to how bem works — so we want you using it, not worrying about the bill.

Per-page tools give you raw text and bounding boxes — you still need to build the pipeline to make that useful. bem takes any unstructured input and returns structured, semantically meaningful JSON in one call. No document-level operations needed, no post-processing required. A 50-page contract costs $2–$4.50 with per-page tools but just $0.09 with bem. And we support inputs they don't — audio, video, messaging threads, and email.

No. Pay-as-you-go is exactly that. No platform fees, no minimums. You're billed monthly in arrears for exactly what you use. If you can commit to monthly minimums, we can offer additional savings — contact us to discuss. Enterprise customers get custom pricing with MSA, SLA, and procurement terms tailored to their volume and compliance needs.