All tasks / Comparisons

Gemini 3.8 Live vs GPT-Live 1

Compared only on public benchmark results, across the 1 task where both are listed: Gemini 3.8 Live is a tier higher in 1 of 1 shared task.

Gemini 3.8 Live

Google's native-audio Gemini models for low-latency voice agents in the Live API, with an Extended Thinking variant.

Vendor: Google
Weights: Closed: API and apps only
Released: Sep 2026
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.)
License: proprietary
Last verified: 18 Oct 2026

Alternatives to Gemini 3.8 Live

GPT-Live 1

OpenAI's full-duplex voice conversation model that powers ChatGPT Voice and hands hard requests to a backend model.

Vendor: OpenAI
Weights: Closed: API and apps only
Released: 8 Jul 2026
API price: $0.05 per minute of audio (Voice sessions $0.05 per minute, billed per second; the backend model and tools it delegates to are billed separately.)
License: proprietary
Last verified: 18 Oct 2026

Alternatives to GPT-Live 1

Task by task

Task	Gemini 3.8 Live	GPT-Live 1	Higher tier
Voice agents Models	S1,088 on Artificial Analysis Speech Agent Arena (models) · Cloud	A1,057 on Artificial Analysis Speech Agent Arena (models) · Cloud	Gemini 3.8 Live

A tier spans a range of scores, and small gaps on a leaderboard are often within its margin of error, so only a different tier counts as ahead. How we rank.

Same benchmark, both results

Benchmark	Gemini 3.8 Live	GPT-Live 1	Snapshot
Artificial Analysis Big Bench Audio (speech reasoning) Accuracy on Big Bench Audio: spoken reasoning questions answered in audio (speech in, speech out), higher is better	97.7% Gemini 3.8 Live Extended Thinking (High), Google	90.1% GPT-Live-1 (Astra, medium), OpenAI	18 Oct 2026
Artificial Analysis Speech Agent Arena (models) Elo from blind pairwise votes on live voice-agent conversations (overall slice; GPT-Realtime-1.5 anchored at 1000), higher is better	1,088 Gemini 3.8 Live	1,057 GPT-Live-1 (Sol, low)	18 Oct 2026
Artificial Analysis Speech to Speech Index AA-Speech to Speech Index: weighted average of speech reasoning (Big Bench Audio), agentic performance (tau-Voice), arena preference and task success rate, higher is better	83 Gemini 3.8 Live Extended Thinking (High)	83 GPT-Live-1 (Astra, medium)	18 Oct 2026