MAI-Transcribe-2 $0.10 per hour through Dec 31, 2026 vs Sume STT
Microsoft prices the MAI-Transcribe-2 preview at $0.10 per hour through December 31, 2026. Sume STT bills $0.01 per audio minute; here is the per-hour math.

Microsoft says MAI-Transcribe-2 "will be priced at $0.10 per hour through December 31, 2026". That window is the whole offer: the post does not state a price after that date. Sume's speech-to-text is $0.01 per audio minute, which is $0.60 for an hour of audio.
The Microsoft price is from its announcement post; the Sume rate from the rate card and the video inspect docs, read 2026-10-01. Sume's default agent fee is not included in the Sume column.
What exactly did Microsoft price?
The post says MAI-Transcribe-2 is available in public preview through Azure Speech and that "at launch" it is priced at $0.10 per hour through December 31, 2026. It gives no rate for 2027 onward, so a budget that runs past that date has an unknown line in it.
What does that look like next to Sume's per-minute rate?
Straight multiplication. One hour is 60 audio minutes, so $0.10 per hour is about $0.0017 per minute, and Sume's $0.01 per minute is $0.60 per hour.
| Audio | MAI-Transcribe-2 (through 2026-12-31) | Sume `sume/stt-1.0` |
|---|---|---|
| 1 minute | about $0.0017 | $0.01 |
| 1 hour | $0.10 | $0.60 |
| 100 hours | $10.00 | $60.00 |
| 1,000 hours | $100.00 | $600.00 |
How does Sume reserve the spend?
Sume bills per audio minute. A request may carry duration_seconds, an integer from 1 to 600, which "improves usage reservation"; if you omit it Sume reserves 1 minute. The field is an estimate for the reservation, not a billing switch, and the hint tops out at 600 seconds.
How should I budget around a dated price?
Pick the cost line you can defend for your whole project: a promotional rate through one date, or a flat rate with no end date in its docs. For a long archive, run the numbers in cost to transcribe 1,000 hours. Price is only one input; this post does not compare accuracy or language coverage.
Sources
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