Picking the Right TTS Model: Flagship vs Standard vs Flash

Open the model dropdown in the Voice Studio and you'll see three families. A wrong pick won't break anything — it just costs more or performs less.

What each family is for

Flagship: most expressive, honors emotion tags like [whispers] and [excited], 70+ languages, ~5,000 chars per request. For drama, ads, audiobooks — anything that's performed rather than read.

Multilingual standard: stable and balanced, 29 languages, 10,000 chars. The default for voiceovers, explainers and courses.

Flash: lowest latency, half the cost, 32 languages, up to 40,000 chars. The economical pick for bulk long-form and informational content.

A one-question rule

Ask: does this line need to be acted?

• Yes (emotion, characters, drama) → flagship
• No (just deliver the information) → standard, switch to flash at volume

One sentence, three models

What the spec table cannot tell you, your ears can. The same Chinese line, the same voice, rendered on the standard, fast and flagship tiers — the flagship take carries two emotion tags, because only that tier supports them:

ボイス: 知性御姐中国語8秒

ボイス: 知性御姐中国語モデル: eleven_flash_v2_57秒

ボイス: 知性御姐中国語モデル: eleven_v38秒

Details worth knowing

• Only flagship honors emotion tags; standard/flash skip them
• All three return character-level timestamps — subtitles work everywhere
• The same voice sounds slightly different across models; A/B them once for important projects

Per-operation credit prices are on the pricing page; failed generations refund automatically.