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Text to Speechvoice-agentsmultilingualindian-languagesrealtime

Eleven Flash v2.5

by ElevenLabs · Released Undisclosed

ElevenLabs' fast, affordable model in 32 languages including Hindi and Tamil. The recommended ElevenLabs voice for live calls. $0.4167 per 10K characters.

Text to Speech

Eleven Flash v2.5

Powered by ElevenLabs · Neural TTS (ElevenLabs Eleven Flash v2.5)

Context Window

N/A

Parameters

Undisclosed

Max Output

N/A

Category

Text to Speech

Overview

Eleven Flash v2.5 is ElevenLabs' ultra-low-latency model (about 100 ms to first audio upstream) at half the per-character price of the multilingual models. It speaks 32 languages — the Multilingual v2 set plus Hungarian, Norwegian and Vietnamese — including Hindi and Tamil, and is the ElevenLabs model we recommend for phone calls.

Available on POST /v1/audio/speech and as a voice-agent voice. Shares the ElevenLabs voice library; set language to a base code such as hi to fix the language and number reading. Numbers are best written out in words for this model family.

Pricing

MetricPrice
Price /10K chars₹40.0000

1 credit = ₹1 ≈ US$0.0104 (US$1 = ₹96). Transparent per-call pricing — you pay only for what you call, with no per-seat charge or minimums.

Key Highlights

  • Low-latency voice agents and IVR
  • 32 languages, one shared ElevenLabs voice library (21 premade voices or any ElevenLabs voice ID)
  • On POST /v1/audio/speech and as a voice-agent voice (tts_model)
  • Speed 0.7–1.2; mp3, wav, pcm, opus, mulaw and alaw output

Benchmarks

BenchmarkScore
Languages32
Voices21+
Price$0.4167
Latency~0.4 s on the REST endpoint in our tests

Technical Details

  • Model ID is ElevenLabs' own (eleven_flash_v2_5)
  • 32 languages; language takes a base ISO code such as hi
  • Voice: a premade name or any 20-character ElevenLabs voice ID, including cloned voices
  • Input up to 4096 characters; no SSML
  • Paid plans only

Strengths

  • ElevenLabs' fast, affordable model in 32 languages including Hindi and Tamil
  • Cloned and library voices from your ElevenLabs account work as-is
  • Available on the speech endpoint and in voice agents

Limitations

  • Premade voices carry English accents; the language is enforced by the language parameter
  • No SSML; streaming is not supported on the speech endpoint
  • Paid plans only

Use Cases

Low-latency voice agents and IVRCustomer support and sales voice agentsSpoken notifications and IVR prompts

API Example

curl https://api.callmissed.com/v1/audio/speech \
  -H "Authorization: Bearer cm_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "eleven_flash_v2_5",
    "voice": "sarah",
    "language": "hi",
    "input": "Namaste, main aapki kaise madad kar sakti hoon?"
  }' --output speech.mp3

Endpoint: POST /v1/audio/speech · Model ID: eleven_flash_v2_5

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