Simple pricing.
$0.0033 / agent minute.
One usage rate at any scale. Plans determine SLA, support, and capacity guarantees (if you also use our STT and TTS models) — not the price per minute.
included in all plans:
LLM Optimisation
Regional TTS Caching
11 Regions
PII redaction
Noise Cancelation
Transcripts
Automatic Failover
Plans
SLNG does not gate core capability by plan. You get the same Voice AI Cloud on every plan across these core capabilities.
STT — any model (+ US$ 0.0033 / per agent min)
Gradium, Deepgram, Speechmatics, AssemblyAI, Soniox, Whisper, Gladia, pyannoteAI, Voxtral, Savram AI — swap freely, pay per minute, automatic failover.
TTS — any model (US$ 0.0033 / per agent minute)
Gradium, Rime, Deepgram, Cartesia, InWorld, Savram AI, Soniox, KugelAudio, MURF.AI — swap freely, pay per minute, automatic failover.
One API to run everything
Route STT, LLM, and TTS through a unified gateway with smart selection and enforced behavior.
Compliance-ready execution
Region and country rules enforced at runtime. Data stays in-region. SOC 2, ISO 27001, HIPAA, GDPR.
Compare plans by how you run
All plans run on the same Voice AI Cloud. What changes is how much scale, support, and guarantees you get.
Faqs
How is SLNG priced?
SLNG uses usage-based pricing by default. You pay for the voice workloads you run, such as telephony minutes, speech-to-text, text-to-speech, and model inference. Plans define scale, guarantees, control, and data ownership, not access to features.
What’s included in every SLNG plan?
Every plan includes access to the same Voice AI Cloud, with all supported models, regions, runtimes, and APIs. SLNG does not gate core capability by plan.
What’s the difference between Hobby, Pro, and Enterprise?
The difference is not capability. Plans vary by scale, execution guarantees, behaviour control, data ownership, integrations, and support.
How does usage-based billing work?
Usage is billed independently of your plan. You pay for actual voice usage, while plans and add-ons define concurrency, guarantees, and operational certainty.
How does concurrency pricing work?
Concurrency defines how many calls can run at the same time. Additional capacity can be reserved using add-ons, while usage billing stays the same.
Is SLNG suitable for regulated environments?
Yes. SLNG enforces region and country rules at runtime. Enterprise plans add residency, retention, auditability, and SLA-backed guarantees for regulated workloads.
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