SLNG Alternatives
Voice agent infrastructure that routes across STT, TTS and LLM providers with region-pinned execution
SLNG is an execution layer for real-time voice agents.
Explore 9 alternatives to SLNG across 2 categories. Updated October 2026.
Top SLNG alternatives at a glance
- LiveKit Agents. Open-source framework for building real-time voice and multimodal AI agents over WebRTC
- Samtal. Swedish-hosted voice AI API with TTS, ASR, voice cloning, and conversational agents. ElevenLabs-compatible
- Openspender. Payment router for AI agents: pay per request across LLM APIs and tools from a self-custodial wallet
- LiveKit Agents. Open-source framework for building real-time voice and multimodal AI agents over WebRTC
- Hume AI. Expressive voice APIs: real-time speech-to-speech (EVI) and instructable text-to-speech (Octave)
Compare SLNG with its alternatives
| Product | Pricing Model | Free Tier | Open Source | Hosting | HQ |
|---|---|---|---|---|---|
| SLNG | Pay-per-use | — | — | Cloud | — |
| LiveKit Agents | Freemium | ✓ | ✓ | Cloud + Self-hosted | ๐บ๐ธ United States |
| Samtal | — | — | — | Cloud | ๐ธ๐ช Sweden |
| Openspender | Pay-per-use | ✓ | — | Cloud | — |
| Hume AI | Freemium | ✓ | — | Cloud | ๐บ๐ธ United States |
| Respeecher | Freemium | — | — | Cloud | — |
| Cekura | Pay-per-use | ✓ | — | Cloud | ๐บ๐ธ United States |
| Deepgram | Pay-per-use | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
Want alternatives like these in your AI assistant? Try the Infrabase MCP server
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