Google / google/gemini-2.5-flash-preview-tts

Gemini 2.5 Flash Preview TTS - access through LLMTR

A practical text-to-speech option when you want low latency and cost-efficient voice output. Well suited to in-app narration, read-aloud features, and assistant voice flows.

Technical specifications

Canonical IDgoogle/gemini-2.5-flash-preview-tts
ProviderGoogle
Context windowNot available
OperationsAUDIO_SPEECH
Modalitiestext, audio

Pricing

A 6% platform margin applies to credit top-ups; model usage prices are not separately marked up.

OperationMetricUnitPrice
AUDIO_SPEECHINPUT_TEXTPER_1M_TOKENS$0.500000
AUDIO_SPEECHOUTPUT_AUDIOPER_1M_TOKENS$10.00

Example usage

With existing OpenAI SDK flows, change only the base URL and model identifier.

curl https://llmtr.com/v1/chat/completions \
  -H "Authorization: Bearer llmtr-your_key" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/gemini-2.5-flash-preview-tts","messages":[{"role":"user","content":"Hello"}]}'

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