Pricing and limits

Billing is per token. Two models do the work — sdvm-audit-1 produces every verdict, including every vote and the reaudit inside a refine, and sdvm-fix-1 produces every fix — and each token bills at the rate of the model that consumed it.

Model	Input	Output
`sdvm-audit-1`	$0.12 per 1M tokens	$0.45 per 1M tokens
`sdvm-fix-1`	$0.12 per 1M tokens	$0.45 per 1M tokens

Minimum $0.01 per request, rounded up to the whole cent. Every response reports cost_usd, input_tokens and output_tokens. Rates can change. GET https://api.sdvm.ai/pricing returns the live rates and limits (no key needed). The table above is a snapshot from 2026-09-16, rounded up to the cent — the endpoint has the exact figures and is what a request is actually billed at.

What drives the cost

An audit’s output tokens usually exceed its input tokens.
votes=N audits each sample N times and bills the work actually done.
max_attempts=N gives the fixer up to N tries; only flagged samples are tried again.
refine runs audit -> fix -> reaudit; only samples the fix changed are re-audited.

Limits

	Limit
Samples per request	100
Requests per minute	100 per API key
Votes per audit stage	1 to 9, odd
Fix attempts	1 to 5
Sample size	About 186,000 tokens (roughly 745,000 characters) per sample. The error message states the exact limit.
Estimated cost per request	$5.00. A request whose pre-flight estimate exceeds it is rejected before any work is done.

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