falText to speechComing soon

fal-ai/qwen-3-tts/text-to-speech/0.6b

fal-ai/qwen-3-tts/text-to-speech/0.6b is a text to speech tool from fal that runs in the background and returns audio. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Priced by usage

Pricing

$0.091 per 1,000 characters of text. The final charge comes from usage.

Limits

Runs
In the background
Returns
audio
Longest queue wait
3600s
Run deadline
1800s
Largest inline input
1024 KB
Largest input file
500 MB
Largest output
4768 MB
Outputs per run
16

Input

FieldKindDefaultDescription
text requiredtext—The text to be converted to speech.
prompttext—Optional prompt to guide the style of the generated speech. This prompt will be ignored if a speaker embedding is provided.
voiceone of
Vivian, Serena, Uncle_Fu, Dylan, Eric, Ryan, Aiden, Ono_Anna, Sohee
—The voice to be used for speech synthesis, will be ignored if a speaker embedding is provided. Check out the **[documentation](https://github.com/QwenLM/Qwen3-TTS/tree/main?tab=readme-ov-file#custom-voice-generate)** for each voice's details and which language they primarily support.
languageone of
Auto, English, Chinese, Spanish, French, German, Italian, Japanese, Korean, Portuguese, Russian
AutoThe language of the voice.
speaker_voice_embedding_file_urltext—URL to a speaker embedding file in safetensors format, from `fal-ai/qwen-3-tts/clone-voice/0.6b` endpoint. If provided, the TTS model will use the cloned voice for synthesis instead of the predefined voices.
reference_texttext—Optional reference text that was used when creating the speaker embedding. Providing this can improve synthesis quality when using a cloned voice.
top_knumber (whole)
0 to …
50Top-k sampling parameter.
top_pnumber
0 to 1
1Top-p sampling parameter.
temperaturenumber
… to 1
0.9Sampling temperature; higher => more random.
repetition_penaltynumber
0 to …
1.05Penalty to reduce repeated tokens/codes.
subtalker_dosampletrue or falsetrueSampling switch for the sub-talker.
subtalker_top_knumber (whole)
0 to …
50Top-k for sub-talker sampling.
subtalker_top_pnumber
0 to 1
1Top-p for sub-talker sampling.
subtalker_temperaturenumber
0 to 1
0.9Temperature for sub-talker sampling.
max_new_tokensnumber (whole)
1 to 8192
200Maximum number of new codec tokens to generate.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "fal",
    "model": "fal-ai/qwen-3-tts/text-to-speech/0.6b",
    "input": {
      "text": "I feel like I'\''m taking crazy pills! How can something be both a square and a circle at the same time? It defies all logic!"
    }
  }'