Simple, Transparent Pricing

Every request is billed dynamically, with the metric chosen to match each task: resolution × steps for images, characters for speech, tokens for embeddings, duration with optional resolution for video, hours for transcription, output characters for OCR, and per-image rates for background removal and upscaling. There are no subscriptions, no monthly minimums, and no hidden fees — you fund a prepaid balance and each successful inference deducts its exact cost. Before any job, you can call the matching /price endpoint to preview the precise cost for the model and parameters you plan to use.

Yes. Every new account receives $5 in free credits the moment you sign up — no credit card, no upfront commitment. That balance is enough to test most models extensively, generate hundreds of images, transcribe several hours of video, or prototype a complete AI pipeline. Your account starts on the Basic tier with conservative rate limits designed for testing; making any payment upgrades you to Premium with no waiting period.

Inference is routed through a globally distributed GPU network rather than concentrated in a few hyperscale data centers, which removes most of the infrastructure markup baked into traditional cloud pricing. We also serve highly optimized open-source models — many of them quantized (INT8, FP8, NF4) and distilled — so each request uses fewer GPU seconds without sacrificing output quality. The combined effect can deliver up to 20× lower inference cost for comparable workloads.

deAPI uses Stripe for secure card payments and supported local methods. You can either make one-off top-ups (with preset amounts of $10, $25, or $50) or enable automatic top-ups, which recharge your balance whenever it drops below $2 — perfect for production workloads that can't afford to fail mid-job. For B2B customers needing custom invoices, larger commitments, or tailored billing terms, our team arranges individual agreements; just reach out to support.

The Basic tier offers conservative rate limits (typically 1–10 RPM depending on the endpoint) ideal for testing. The moment you make any payment via Stripe, your account upgrades to Premium with 300 RPM across all endpoints and unlimited daily requests — instantly, with no application process. For high-volume production needs beyond Premium, dedicated capacity, or enterprise terms, our team can set up bespoke arrangements with volume discounts.

Music is billed by track duration and inference steps. For a 60-second track, ACE-Step 1.5 Turbo costs ~$0.000868 and ACE-Step 1.5 Base costs ~$0.001563, with the XL Turbo INT8 variant priced between them depending on settings. Turbo variants use fewer inference steps (typically around 8) for cost-efficiency; Base variants use 32+ steps for higher fidelity. Use the /price endpoint with your model, duration, and inference_steps to get exact pricing before generation.

ACE-Step 1.5 Turbo is the fastest and most cost-efficient, ideal for rapid iteration and prompt experimentation. ACE-Step 1.5 XL Turbo INT8 uses a larger 4B-parameter decoder for richer audio fidelity and more nuanced detail, while staying fast through INT8 quantization. ACE-Step 1.5 Base is the highest-quality reference variant — slower but best for final renders of hero tracks and long-form compositions.

Both. The endpoint accepts a lyrics field where you can paste your own text (use [Instrumental] for tracks without vocals), and a vocal_language field to set the singing language. You can also fine-tune the result with bpm (30–300), keyscale (e.g., "C major"), and timesignature (2, 3, 4, or 6). For style transfer, you can additionally upload a reference_audio file to anchor the output to an existing musical feel.

Track length is configurable via the duration parameter from 10 to 600 seconds (10 minutes) per generation. That covers everything from notification chimes and intro stingers to full-length background scores. For specific sections (verse-only, chorus-only), generate shorter clips to iterate cheaply, then commit to longer renders once your prompt reliably produces the sound you want.

Yes — the underlying ACE-Step models are released under commercial-friendly open-source licenses, so generated tracks can be used in marketing campaigns, paid videos, podcasts, ads, and client deliverables. We recommend reviewing the specific license attached to each variant before publishing on platforms with strict audio fingerprinting (such as Content ID systems), particularly if your distribution scale is large.