LLM Reference
activeAudio

Big Bench Audio

Metric: Accuracy (%) (higher is better)Introduced: 2025

Speech reasoning benchmark testing whether a voice model understands and reasons over what is said, not just transcribes it. Covers 12 tasks including emotion recognition, spoken arithmetic, factual Q&A, and instruction following. Evaluated by Artificial Analysis on speech-to-speech models. Higher is better.

Models ranked

5

tracked on this benchmark

Score band

97.6 – 29.2

best → lowest tracked

Snapshot trend

-20.13

May 24 → Jun 7 · 4 models

Leaderboard

Tracked models ranked by Accuracy (%) (higher is better).

Compare candidates
#Model variant and provenanceScore
1
StepAudio 2.5 Realtime
Version: pctHarness: Not recordedEvaluator: Not recordedObserved: May 24, 2026Confidence: Not recordedSource
97.6
2
Grok Voice Think Fast 1.0
Version: pctHarness: Not recordedEvaluator: Not recordedObserved: Jun 7, 2026Confidence: Not recordedSource
97.1
3
GPT Realtime 2
Version: highHarness: Not recordedEvaluator: Not recordedObserved: Jun 7, 2026Confidence: Not recordedSource
96.6
4
Amazon Nova 2 Sonic
Version: pctHarness: Not recordedEvaluator: Not recordedObserved: Jun 7, 2026Confidence: Not recordedSource
87.0
5
Nemotron 3 VoiceChat
Version: pctHarness: Not recordedEvaluator: Not recordedObserved: Jun 7, 2026Confidence: Not recordedSource
29.2

How to read this benchmark

This benchmark scores models where higher is better. Use scores for directional filtering and shortlisting, not universal quality ranking; then validate pricing, context window, provider availability, and fit for your workload.

Trust this score when

  • There is a fresh timestamped snapshot (or multiple snapshots) for this benchmark.
  • The model list covers the same version family you can actually deploy today.
  • Top candidates overlap with your required routing and feature requirements.

Be cautious when

  • There is only one benchmark snapshot or the dataset appears stale.
  • The benchmark metric direction is opposite of your decision objective.
  • The score difference between options is narrow and likely within implementation variance.

Related benchmarks

Last reviewed: Jun 7, 2026

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