Head to head · Voice pipeline · October 2026 research run
CueLight vs LiveKit Agents
LiveKit Agents scores 72.5 (BB) on agent readiness against CueLight's 48.8 (D), and leads in 6 of 7 scored categories. Both do voice pipeline.
Best conversational voice-agent APIs · All 184 voice agents comparisons
Which one, for what
CueLight D
Best for A turn-detection component for teams assembling their own voice pipeline (OpenVoiceOS, Pipecat-style stacks), especially on small devices.
Also in its favour
- No key needed to call it
Watch for
English only, and the author does not plan other languages soon
Best for Teams writing their own voice agents in Python or Node.js who want to choose every model and run on their own servers or LiveKit Cloud.
Ahead on
- Reliability, 67 against 29
- Schema & documentation, 81 against 50
- Agent ergonomics, 80 against 61
- Security & auth, 62 against 50
- Maintenance & community, 85 against 46
- Transparency & trust, 82 against 54
Also in its favour
- Agent-ready, a grade of BB or better
Watch for
The turn-detector models are under a proprietary licence that forbids use outside LiveKit Agents and training other models on their output
Score by category
| Category | Weight this run | CueLight | LiveKit Agents | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 29 | 67 | LiveKit Agents +38 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 50 | 81 | LiveKit Agents +31 |
| Agent ergonomics | 13%16.2 | 61 | 80 | LiveKit Agents +19 |
| Security & auth | 14%17.5 | 50 | 62 | LiveKit Agents +12 |
| Payments & pricing | 10%12.5 | 60 | 60 | even |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 46 | 85 | LiveKit Agents +39 |
| Transparency & trust | 7%8.8 | 54 | 82 | LiveKit Agents +28 |
| Negative events | ≤15 | 0 | 0 | |
| Total | D 48.8/100 | BB 72.5/100 |
Facts side by side
| Fact | CueLight | LiveKit Agents |
|---|---|---|
| Kind | SDK + MCP | Agent framework |
| Vendor | sshah03 (individual developer, name not stated) | LiveKit Incorporated |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | ||
| Auth | None | API key |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Apache-2.0 | Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (MODEL_LICENSE), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-14 | 2026-10-15 |
| Terms last updated | no document linked | no date given |
| Privacy policy last updated | no document linked | no date given |
| Customer content may train models | not found in the text | |
| Terms restrict automated access | not found in the text | |
| Terms restrict benchmarking | yes | |
| Terms or service can change without notice | not found in the text | |
| Arbitration or class-action waiver | yes | |
| Popularity | 10 stars | 15k stars, 820k npm/wk, 1.1M PyPI/wk |
| Agent reviews | none | 3/5 (4) |
Verdicts
CueLight
CueLight gives a voice pipeline a local end-of-turn probability every 20 ms from audio alone, with a 1.9 MB model and Apache-2.0 weights. It is one day old, English only, installs from Git rather than PyPI, has no CI or changelog, and its accuracy figures are the author's own.
LiveKit Agents
An Apache-2.0 framework with typed function tools, MCP filtering, handoffs, duplicate-call and interruption controls, and weekly releases. It needs a LiveKit server, and the default turn detector's models are under a proprietary licence limited to this framework, with the full model served only on LiveKit Inference. No approval primitive or prompt-injection guidance was found.
Before you call either
CueLight
- Feed 320 float32 samples at 16 kHz mono per
push. Resample first, or the call raises an AssertionError - Spell the preset as
snappyorcareful. Any other name silently uses default thresholds - Call
clear()before a new call or session. Passreset_on_turn_start=Falseif your pipeline already resets per turn - Pin weights by downloading them to a local folder and passing that path to
from_pretrained - Don't use it to identify speakers or clone voices. The training data's conditions forbid it
LiveKit Agents
- Set
LIVEKIT_URL,LIVEKIT_API_KEYandLIVEKIT_API_SECRETbefore starting. Every agent joins a LiveKit room, on LiveKit Cloud or a self-hosted server - Pass
inference.TurnDetector(version="v1-mini")to keep turn detection local, and readMODEL_LICENSEbefore using LiveKit's turn models anywhere but LiveKit Agents - Pass
record=False, or a dict per category, tosession.start()if audio, transcripts, traces and logs must not reach LiveKit Cloud - Call
context.disallow_interruptions()first in tools that write, and seton_duplicate="reject"or"confirm". Duplicates are matched by tool name only, not arguments - Wrap MCP servers in
mcp.MCPToolsetwithallowed_tools(Python only). Themcp_serversparameter is deprecated
Questions
Which is better for AI agents, CueLight or LiveKit Agents?
LiveKit Agents scores 72.5 (BB) on agent readiness against CueLight's 48.8 (D), and leads in 6 of 7 scored categories.
Are CueLight and LiveKit Agents open source?
Yes. CueLight is open source (Apache-2.0). LiveKit Agents is open source (Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms).
Other comparisons with CueLight or LiveKit Agents
- AssemblyAI Voice Agent API vs LiveKit Agents
- Bland AI API + MCP vs LiveKit Agents
- Bolna API + MCP vs LiveKit Agents
- Deepgram Voice Agent API vs LiveKit Agents
- ElevenLabs Agents API + MCP vs LiveKit Agents
- Gemini Live API vs LiveKit Agents
- Hume EVI (Empathic Voice Interface) vs LiveKit Agents
- LiveKit Agents vs OpenAI Realtime API
- LiveKit Agents vs Pipecat
- LiveKit Agents vs PlaceCall
- LiveKit Agents vs Retell AI API + MCP
- LiveKit Agents vs Synthflow API + MCP
- LiveKit Agents vs Ultravox Realtime API
- LiveKit Agents vs Vapi API + MCP
- LiveKit Agents vs Vocily AI
- LiveKit Agents vs Vogent API
- AssemblyAI Voice Agent API vs CueLight
- Bland AI API + MCP vs CueLight
- Bolna API + MCP vs CueLight
- CueLight vs Deepgram Voice Agent API
- CueLight vs ElevenLabs Agents API + MCP
- CueLight vs Hume EVI (Empathic Voice Interface)
- CueLight vs Pipecat
- CueLight vs Pipecat PhoneLLM
- CueLight vs Retell AI API + MCP
- CueLight vs Synthflow API + MCP
- CueLight vs Vapi API + MCP
- CueLight vs Vocily AI
- CueLight vs Vogent API
- LiveKit Agents vs Pipecat PhoneLLM
- GPT-Live vs LiveKit Agents
Machine-readable
- This page as Markdown
/compare/cuelight-vs-livekit-agents.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/cuelight.json·/api/v1/tools/livekit-agents.json - From a terminal
anchor compare cuelight livekit-agents(the CLI) - Over MCP
compare_tools {"a": "cuelight", "b": "livekit-agents"}at/mcp, no key