Overview

SLNG is offering an all-in-one voice AI infrastructure. It centralizes where you manage all your speech-to-text, LLM, and text-to-speech workloads across providers and regions, without rebuilding your stack for each one. There are 3 main products that conform SLNG as of today:

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Execution Layer

Optimisation layer that sits between the models and your orchestrator, cutting latency and cost across the STT → LLM → TTS pipeline. Applied on top of your Gateway calls:

• Listen (STT) — higher transcription quality
• Think (LLM) — skips redundant calls to save tokens and latency
• Speak (TTS) — caching for lower latency and cost

See Execution Layer to know more about it.

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Agent builder

Deploy and run voice agents with tool calling, behavior configuration, variable management, and full API control over live calls. See Agent Builder to know more about it.

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Model Gateway

One API for STT and TTS models from multiple providers. Route requests through SLNG for unified usage visibility, or run provider models self-hosted in your region. See Model Catalog for supported providers and models.

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Regions

Workloads run in 14 regions worldwide. Every product is available in every region. See Regions for the full list and endpoints.