Thanks — I’ll keep this high level. Below are candidate hosted and open‑source LLM options that teams commonly integrate with LiveKit for real‑time audio (ASR → LLM or LLM that accepts streaming audio). Each entry is one short paragraph with pros, cons, free‑tier/self‑host status, and a brief LiveKit integration note.
• Open-source speech+LLM stacks (Whisper + local LLM): Pros — fully on‑prem, free to run, flexible language pipelines (use Whisper/variants for ASR and any CPU‑compatible LLM for text); Cons — CPU‑only scale and sub‑1s latency for 100+ concurrent streams is unlikely without heavy engineering; Free/self‑host — free (open source); LiveKit note — capture audio from LiveKit, run local ASR then pass text to local LLM or to a server-side agent.
• OpenAI (hosted): Pros — strong multilingual models and tooling, easy server‑side integration; Cons — not on‑prem, Indian‑language coverage varies by language and costs can exceed free tier; Free‑tier status — limited free credits or tier varies; LiveKit note — stream audio to a server for ASR then call OpenAI text APIs for assistant responses.
• Coqui / Vocode-style stacks: Pros — focused on real‑time voice integrations and can be self‑hosted or cloud; Cons — may require GPU for best latency and varying language coverage; Free/self‑host — some components open source, hosted options have tiers; LiveKit note — link LiveKit audio streams into Coqui/Vocode transcribers and route text to an LLM.
• Hugging Face (hosted Inference + self‑host models): Pros — vast model hub including Indian language models and self‑host options; Cons — hosted inference cost and latency, on‑prem CPU performance limited; Free‑tier — free hosting quotas and many free models to self‑host; LiveKit note — send LiveKit audio to ASR model (hosted or local) then call HF inference APIs or local model.
• Mistral / Anthropic / other newer hosted LLMs: Pros — strong text generation capabilities; Cons — limited native real‑time audio support (usually need separate ASR), free tiers vary; Free‑tier — limited or no ongoing free tier for production; LiveKit note — perform ASR on server then forward text to the provider’s text API.
• Vosk / Silero (ASR focused, paired with LLM): Pros — very lightweight ASR options that work on CPU and support several Indian languages; Cons — they are ASR only (need an LLM for responses); Free/self‑host — open source; LiveKit note — use LiveKit audio -> Vosk/Silero on‑prem for low‑latency transcription, then local LLM for generation.
• Local quantized LLMs (Llama‑derived, Mistral‑derived quantized CPU builds): Pros — can be self‑hosted and cost‑effective for text inference; Cons — native real‑time audio ingestion is uncommon; Free/self‑host — model weights may be free but license varies; LiveKit note — run on‑prem LLMs for text responses after local ASR.
• Speech‑to‑Text SaaS with generous free tiers (Google Speech, Azure Speech, AssemblyAI): Pros — mature ASR, wide language support and low latency from nearby cloud regions; Cons — not on‑prem and free tiers limited; Free‑tier — small free quotas typically; LiveKit note — route LiveKit audio to these ASR services, then forward transcripts to LLMs.
• Riva / NVIDIA SDK (if GPUs available): Pros — optimized for real‑time voice and can be deployed on‑prem with low latency; Cons — requires GPUs (not applicable for CPU‑only); Free/self‑host — SDK available but hardware costs apply; LiveKit note — integrate LiveKit audio with Riva for ASR, then local LLM.
• Specialty Indian‑language providers / research models (various academic + startup models): Pros — focused coverage for specific Indian languages; Cons — availability, quality, and free tiers vary widely; Free/self‑host — some research models are free to run; LiveKit note — evaluate by routing LiveKit audio to the provider’s ASR or hosting the model locally if available.
If you’d like, I can:
• Turn any of the above into a short comparison table, or
• Create a simple integration checklist for LiveKit + ASR + LLM to prototype one option quickly.
Which would you prefer next?
, with interactive elements