Gemini Live
- Strength
- Second-highest repetition score at 4.78/5 across 174 scored calls.
- What can be improved
- One rerun had no latency evidence and scored 0/5 for both task outcome and tool accuracy.
Speech-to-speech setup
- reasoning: high
- hybrid VAD
All platform comparisons
Gemini Live · ranked 8 of 8LiveKit · ranked 2 of 8
Gemini Live vs LiveKit
LiveKit is ahead of Gemini Live on repeatable reliability, task completion, infrastructure reliability, tool call accuracy and response time. The two tie on interruption handling.
Last updated Methodology by Luis Ojeda
Verdict
Which to pick
LiveKit is the better pick over Gemini Live on every measure that separates them: reliability across repeated runs (40.24 points higher), completing the caller's task (7.32 points higher), calls that connect and stay up (26.83 points higher), accurate tool calls (0.27 higher) and fast replies (0.46s faster). They are level on handling interruptions.
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.
- Gemini Live
- 30.49%8th
- LiveKit
- 70.73%2nd
LiveKit, 40.24 points higher
Task completion
Calls where the expected outcome was fully reached.
- Gemini Live
- 87.80%8th
- LiveKit
- 95.12%3rd
LiveKit, 7.32 points higher
Infrastructure-clean calls
Calls with no connection, audio or platform failure.
- Gemini Live
- 72.36%8th
- LiveKit
- 99.19%3rd
LiveKit, 26.83 points higher
Tool call accuracy
Mean score for calling the right tool with the right arguments.
- Gemini Live
- 4.40/57th
- LiveKit
- 4.67/54th
LiveKit, 0.27 higher
Voice tone and clarity
Mean score for how clear and natural the agent sounds.
- Gemini Live
- Not scored
- LiveKit
- 4.36/52nd
Not comparable
Interruption handling
Mean score for yielding and recovering when the caller cuts in.
- Gemini Live
- 4.97/53rd
- LiveKit
- 4.97/53rd
Level
Mean response time
Mean time for the agent to start replying after the caller stops.
- Gemini Live
- 3.05s7th
- LiveKit
- 2.59s6th
LiveKit, 0.46s faster
246 calls per platform: 82 scenarios, 3 runs each.
On the calls
What each platform ran, and what we saw
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
Frequently asked questions
Is Gemini Live or LiveKit more reliable?
LiveKit is more reliable, by 40.24 points. Gemini Live passed 30.49% of the 82 scenarios on all 3 runs and LiveKit passed 70.73%. A scenario only counts when every run of it passed.
Which responds faster, Gemini Live or LiveKit?
LiveKit starts replying sooner, 0.46s faster. Mean response time is 3.05s for Gemini Live and 2.59s for LiveKit.
Which completes more calls, Gemini Live or LiveKit?
Gemini Live reached the expected outcome on 87.80% of calls and LiveKit on 95.12%. LiveKit is ahead on task completion.
How were Gemini Live and LiveKit 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.