How many characters does $100 buy? MAI-Voice, Flash and Sume TTS
$100 buys about 6.7 million characters on MAI-Voice-2.1-Flash, 4.5 million on MAI-Voice-2.1 and 2.1 million on Sume TTS before the fee. The full table.
Budgets for voice work are usually set in dollars, while the API counts characters. Dividing a $100 budget by the per-character price gives the capacity directly, and it makes the three prices easy to compare: MAI-Voice-2.1 at $22 per million characters, MAI-Voice-2.1-Flash at $15 per million (both as reported by Digital Applied and PYMNTS, read 2026-10-06), and Sume's TTS Router at $0.0475 per 1,000 characters after list × 1.25.
$100 of voice
| Voice | Characters | Minutes at 900 chars/min | Hours |
|---|---|---|---|
| MAI-Voice-2.1-Flash | 6,666,667 | 7,407 | 123 |
| MAI-Voice-2.1 | 4,545,455 | 5,051 | 84 |
| Sume TTS (catalog) | 2,105,263 | 2,339 | 39 |
| Sume TTS (all-in) | 1,995,510 | 2,217 | 37 |
Sume limits to keep in mind
A single Sume TTS request takes 1 to 20,000 characters, so $100 is at least 100 full-size jobs at catalog price, not one request. Long scripts are split into jobs; the price is per character, so splitting does not change the total.
Sume prices every job at the vendor list price × 1.25, then adds a 5.5% fee on that result, so $1.00 of list becomes $1.31875 (how the formula works). The tables below show both the catalog price (list × 1.25) and the all-in figure with the fee.
Sources
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Written by Sume