1,000 ad lines of 150 characters: MAI Flash $2.25 vs Sume $10+
A thousand 150-character ad lines are 150,000 characters: $2.25 on MAI-Voice-2.1 Flash at list, and at least $10 on Sume as 1,000 separate jobs.
1,000 lines of 150 characters is 150,000 characters. At Microsoft's list prices that is $2.25 on MAI-Voice-2.1 Flash and $3.30 on standard; on Sume the list rate gives about $7.13, but each separate job has a one-cent minimum and rounds up, so 1,000 jobs bill at least $10.
The math
Prices: $15 and $22 per million characters; Sume $0.0475 per 1,000 characters (Sume docs).
| Option | How billed | Cost |
|---|---|---|
| MAI-Voice-2.1 Flash | $15 per 1M characters | $2.25 |
| MAI-Voice-2.1 standard | $22 per 1M characters | $3.30 |
| Sume, one 150,000-char script | Split into 8 jobs | About $7.13 at list, rounded up per job |
| Sume, 1,000 jobs of 150 characters | 1 cent minimum each | At least $10.00 |
Why Sume costs more here
Sume is the higher per-character price on these numbers. What you get is a known cost, a spend cap, and the platform around it (captions, joining audio, avatars). If your job is only bulk speech, Microsoft's list price is cheaper, but its model is a public preview with no SLA (Learn page).
Batching lines into fewer Sume jobs, each up to 20,000 characters, brings the bill near list; you then cut the audio apart yourself.
Check before you decide
These are list prices. Microsoft's Azure billing page showed no readable prices when we read it, so confirm in your own subscription.
Sources
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