LiveKit
- Strength
- Ranks second on repeatable reliability with 99.19% infrastructure-clean calls.
- What can be improved
- Consent was collected, but consent_id was omitted from the handoff tool.
STT, LLM and TTS
- nova-3
- openai/gpt-4.1
- sonic-3
All platform comparisons
LiveKit · ranked 2 of 8Telnyx · ranked 4 of 8
LiveKit vs Telnyx
Telnyx is ahead on task completion, infrastructure reliability, tool call accuracy and response time, and LiveKit on repeatable reliability, voice tone and clarity and interruption handling.
Last updated Methodology by Luis Ojeda
Verdict
Which to pick
Pick LiveKit for reliability across repeated runs (2.44 points higher), how the agent sounds (0.15 higher) and handling interruptions (0.34 higher). Pick Telnyx for completing the caller's task (2.44 points higher), calls that connect and stay up (0.81 points higher), accurate tool calls (0.04 higher) and fast replies (0.77s faster).
Head to head
Every metric, side by side
Bars share one scale across all 8 platforms. The place next to each figure is its rank in the field.
Repeatable reliability
Share of the 82 scenarios that passed on all three runs.
- LiveKit
- 70.73%2nd
- Telnyx
- 68.29%4th
LiveKit, 2.44 points higher
Task completion
Calls where the expected outcome was fully reached.
- LiveKit
- 95.12%3rd
- Telnyx
- 97.56%1st
Telnyx, 2.44 points higher
Infrastructure-clean calls
Calls with no connection, audio or platform failure.
- LiveKit
- 99.19%3rd
- Telnyx
- 100.00%1st
Telnyx, 0.81 points higher
Tool call accuracy
Mean score for calling the right tool with the right arguments.
- LiveKit
- 4.67/54th
- Telnyx
- 4.71/53rd
Telnyx, 0.04 higher
Voice tone and clarity
Mean score for how clear and natural the agent sounds.
- LiveKit
- 4.36/52nd
- Telnyx
- 4.21/55th
LiveKit, 0.15 higher
Interruption handling
Mean score for yielding and recovering when the caller cuts in.
- LiveKit
- 4.97/53rd
- Telnyx
- 4.63/58th
LiveKit, 0.34 higher
Mean response time
Mean time for the agent to start replying after the caller stops.
- LiveKit
- 2.59s6th
- Telnyx
- 1.82s3rd
Telnyx, 0.77s faster
246 calls per platform: 82 scenarios, 3 runs each.
On the calls
What each platform ran, and what we saw
Telnyx
- Strength
- Tied for first in task completion at 97.56% across all 246 calls.
- What can be improved
- An opening interruption led the agent into plan discussion before completing the recording notice and TPMO disclosure.
STT, LLM and TTS
- deepgram/nova-3
- zai-org/GLM-5.2
- Telnyx Ultra
Frequently asked questions
Is LiveKit or Telnyx more reliable?
LiveKit is more reliable, by 2.44 points. LiveKit passed 70.73% of the 82 scenarios on all 3 runs and Telnyx passed 68.29%. A scenario only counts when every run of it passed.
Which responds faster, LiveKit or Telnyx?
Telnyx starts replying sooner, 0.77s faster. Mean response time is 2.59s for LiveKit and 1.82s for Telnyx.
Which completes more calls, LiveKit or Telnyx?
LiveKit reached the expected outcome on 95.12% of calls and Telnyx on 97.56%. Telnyx is ahead on task completion.
How were LiveKit and Telnyx tested?
Both ran the same Appointment and Medicare agents through the same 82 caller scenarios, 3 times each, with the same evaluators and mock tools. Only the platform and its speech and model components changed.