Global Execution layer
US$ 0.0033 / agent minute
Continuous cost and latency reduction.
Keep your orchestrator
Livekit, Pipecat, custom. Your application code stays the same.
Keep your LLM
Keep your existing model and provider. SLNG routes, caches, and reduces cost on every call.
Keep your STT & TTS models
Bring your existing contract and provider. Or choose from SLNG 30+ model catalogue.
One header
Add X-Region to any API call. No change to your orchestrator, your models, your agent logic.
1curl -X POST https://api.slng.ai/v1/llm \
2 -H "Authorization: Bearer $SLNG_API_KEY" \
3 -H "X-Region: ap-south-1" \
4 -d '{
5 "model": "gpt-4o",
6 "messages": [{"role": "user", "content": "..."}]
7 }'Locally compliant compute in India
US$ 0.0033 / agent minute
Deepgram Nova
Optimized for live applications, delivering low-latency transcription that enables responsive voice agents, captions, and interactive systems.
Soniox STT AI
A universal speech AI that lets you transcribe and translate speech in 60+ languages — from recorded files (async) or live audio streams (real-time).
Sarvam Saaras
A state-of-the-art speech recognition model with flexible output formats. Supports transcription, translation, verbatim, transliteration, and code-mixed outputs.
Rime Arcana
Provides industry leading latency, enabling natural back-and-forth interactions without awkward pauses.
Sarvam Bulbul
Built specifically for Indian languages and accents delivering human-like prosody with natural intonation and emotional expression.
Cartesia Sonic
Takes text input and and streams back ultra-realistic speech in response. Can also clone voices, with full control over pronunciation and accent.
Murf AI Falcon
Optimized for real-time use cases where responsiveness is critical. Ensures conversations feel seamless, natural, and instant.
Soniox TTS RT
Engineered to handle the edge cases that break most production speech systems. Delivers high-fidelity speech across 60+ languages with hallucination-free guarantee.
Getting started
Live instantly. Results within 24hrs
Send your existing call flow. We run it locally in India and show you the numbers against your current setup.
1. Add your keys
Bring your own keys for STT, LLM, and TTS. We never see your credentials.
2. Point to SLNG //
Direct your orchestrator to SLNG endpoints for STT, LLM, and TTS.
3. See the results
Give it 24 hours. Your dashboard shows savings, latency, and quality vs. baseline.
How much does SLNG cost in India?
US$ 0.0033 per agent minute. Same price as every other region, no regional surcharges. STT and TTS add-ons are each US$ 0.0033 per agent minute with model costs included. No contracts, no minimums.
What does the SLNG execution layer run in Mumbai?
The full stack. LLM routing, smart caching, PII redaction, noise cancellation, transcripts, and analytics — on physical GPU hardware in ap-south-1.
How is SLNG different from calling Deepgram or OpenAI directly?
SLNG sits between your orchestrator and your models. You keep your existing providers. The execution layer adds LLM routing, smart caching, PII redaction, and analytics, reducing cost and latency on every call. Running in Mumbai means no round-trips to US servers.
What models run in Mumbai?
Sovereign-hosted STT and TTS models on local compute. LLMs available via BYOK, bring your existing OpenAI, Anthropic, or other provider keys. Full model list in the docs.
Do I need to change my code to run in India?
Add one header: X-Region: ap-south-1. Same API, same endpoint, same models. No DNS changes, no separate deployment.
Can I bring my own model API keys?
Yes. BYOK is the default. Bring your existing OpenAI, Anthropic, Deepgram, or ElevenLabs keys. The SLNG execution layer routes through them, adding routing, caching, and observability without changing your provider contracts.
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.
Does my data leave India?
No. Calls routed to ap-south-1 are processed on physical GPU hardware in Mumbai. Audio stays in-jurisdiction. Every call is logged with region, provider, and timestamp.
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