All tasks / Models
Gemini 3.8 Live
Google's native-audio Gemini models for low-latency voice agents in the Live API, with an Extended Thinking variant.
- Closed
- Released Sep 2026
Where it ranks
- SVoice agentsModels · Cloud · 1,088 on Artificial Analysis Speech Agent Arena (models)
Facts
- Vendor
- Family
- Gemini Live
- Released
- Sep 2026
- Weights
- Closed: API and apps only
- License
- proprietary
- API price
- $0.01 per minute of audio (Artificial Analysis 'Cost per Hour of Input Audio' for Gemini 3.8 Live, Google ($0.841/hour: cost of its Big Bench Audio run normalised to input-audio length) divided by 60.)
- Last verified
- 18 Oct 2026
Price from artificialanalysis.ai, 18 Oct 2026.
Benchmark results
| Benchmark | Result | Entry on the leaderboard | As of | Source |
|---|---|---|---|---|
| Artificial Analysis Big Bench Audio (speech reasoning) | 97.7% | Gemini 3.8 Live Extended Thinking (High), GoogleBig Bench Audio speech reasoning (audio in, audio out); embedded value 0.977 as percent; no last-updated date shown. | 18 Oct 2026 | artificialanalysis.ai |
| Artificial Analysis Speech Agent Arena (models) | 1,088 | Gemini 3.8 LiveSpeech Agent Arena Elo (overall slice; GPT-Realtime-1.5 anchored at 1000), rank 2 of 27, 505 appearances, 95% CI 1058.9-1117.3; embedded data on the speech-to-speech page. | 18 Oct 2026 | artificialanalysis.ai |
| Artificial Analysis Speech to Speech Index | 83 | Gemini 3.8 Live Extended Thinking (High)AA-Speech to Speech Index (weighted: Big Bench Audio, tau-Voice agentic, arena preference, task success); raw embedded value, page shows it rounded; no last-updated date shown. | 18 Oct 2026 | artificialanalysis.ai |
| Cekura Bench: voice agent workflow benchmark v1 (speech-to-speech models) | 30.5% | Gemini LiveReference agent on gemini-3.8-live-extended-thinking, high reasoning, hybrid-VAD rerun; frozen v1 release. | 12 Oct 2026 | benchmarks.cekura.ai |
Where you can use it
- SGeminiApps · Cloud
- –LiveKit AgentsFrameworks · Local
- –PipecatFrameworks · Local
Earlier versions
- Gemini 3.1 Flash Live (preview) · Mar 2026
- Gemini 2.5 Flash Live (native audio preview) · Dec 2025