Official provider results
MAI-Transcribe-1.5 launch evaluation
Microsoft’s June 2, 2026 Foundry post reports the FLEURS word error rate improvement for MAI-Transcribe-1.5 over MAI-Transcribe-1.
Source snapshots refreshed
Five measurement lanesVOICE / S2S
Reasoning, task completion, conversation dynamics, experience, and latency stay separate.
Benchmark profile
- Scope
- FLEURS average WER over 25 languages and language coverage
- Primary metric
- Word error rate (lower is better)
- Owner
- Microsoft AI
- Available evidence
- Exact figures published in the official Foundry post
What it measures
Voice experience
Is the exchange natural, robust, and responsive?
Available results
- FLEURS average WER (25 languages)
- 3.7%
- Languages
- 43
- Price
- $0.36 per hour
Ranked first by Microsoft
Improved from 3.9% for MAI-Transcribe-1; lower is better.
Documented
With automatic language identification.
Documented
Superseded by MAI-Transcribe-2 at $0.10 per hour.
Interpretation limit
Provider-reported results against Microsoft’s own previous model.