Which AI-powered transcription services currently offer the highest word-error-rate accuracy for multi-speaker studio recordings with overlapping dialogue?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Which AI-powered transcription services currently offer the highest word-error-rate accuracy for multi-speaker studio recordings with overlapping dialogue?
3 real searches · 1 real-search pass
2025 2026 speech transcription benchmark overlapping speech word error rate diarization multi speaker studio recordings services AssemblyAI Deepgram Whisper Speechmatics GoogleGoogle ↗
OBSERVEDComparison
overlapping speech ASR benchmark word error rate multi speaker conversational datasets Whisper pyannote SpeechmaticsGoogle ↗
OBSERVEDReason
transcription service accuracy benchmark WER overlapping speech studio audio 2025Google ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (3)
Classes come from the query-classifier (a local Laya model). 2 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
2025 2026 speech transcription benchmark overlapping speech word error rate diarization multi speaker studio recordings services AssemblyAI Deepgram Whisper Speechmatics Google Google ↗
overlapping speech ASR benchmark word error rate multi speaker conversational datasets Whisper pyannote Speechmatics Google ↗
transcription service accuracy benchmark WER overlapping speech studio audio 2025 Google ↗
- www.useocular.com · useocular.com
- ElevenLabs Speech to Text · elevenlabs.io
- Word error rate is broken: How to actually evaluate speech-to-text in 2026 · assemblyai.com
- Benchmarks · assemblyai.com
- AssemblyAI website · assemblyai.com
- Speaker Diarization (DER) comparison⎟pyannoteAI Benchmark · pyannote.ai
- Speechmatics website · speechmatics.com
- Voice AI benchmarks · deepgram.com
- Deepgram website · deepgram.com
- pyannoteAI website · pyannote.ai
- Best speaker diarization API (2026): measured DER on public datasets · speechrevolutions.com
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
2025 2026 speech transcription benchmark overlapping speech word error rate diarization multi speaker studio recordings services AssemblyAI Deepgram Whisper Speechmatics Google OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
overlapping speech ASR benchmark word error rate multi speaker conversational datasets Whisper pyannote Speechmatics OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
transcription service accuracy benchmark WER overlapping speech studio audio 2025 OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |