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Audio & Transcription

audio_graph

Audio input capabilities enable models to chat and understand audio directly, this can be used for both chat use cases via audio or for optimal transcription purposes.

Models with Audio Capabilities​

Audio capable models:

  • Voxtral Small (voxtral-small-latest) with audio input for chat use cases.
  • Voxtral Mini (voxtral-mini-latest) with audio input for chat use cases and efficient transcription only service.

Chat with Audio​

Passing an Audio URL​

curl --location https://api.mistral.ai/v1/chat/completions \
  --header "Authorization: Bearer $MISTRAL_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "voxtral-mini-2507",
    "messages": [
      {
        "role": "user",
        "content": [
          {
            "type": "input_audio",
            "input_audio": {
              "data": "https://download.samplelib.com/mp3/sample-15s.mp3",
              "format": "mp3"
            }
          },
          {
            "type": "text",
            "text": "What'\''s in this file?"
          }
        ]
      }
    ]
  }'

Passing an Uploaded Audio File​

Upload the Audio File

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Get the Signed URL

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Send Completion Request

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Samples

User

Assistant

Sure, here is the transcription of what you said:
"Today on July 15th, 2025, Mistral AI is announcing the new Voxtral models."
And here is the Python code to generate the first n digits of the Fibonacci sequence:

    def fibonacci(n):
if n <= 0:
    return []
elif n == 1:
    return [0]
elif n == 2:
    return [0, 1]

fib_sequence = [0, 1]
for i in range(2, n):
    next_value = fib_sequence[-1] + fib_sequence[-2]
    fib_sequence.append(next_value)

return fib_sequence

# Example usage:
n = 10  # Change this value to get the first n digits of the Fibonacci sequence
print(fibonacci(n))

This code defines a function fibonacci that takes an integer n and returns a list containing the first n digits of the Fibonacci sequence. You can change the value of n to get the desired number of Fibonacci digits.

Transcription​

Passing an Audio URL​

curl --location 'https://api.mistral.ai/v1/audio/transcriptions' \
--header "x-api-key: $MISTRAL_API_KEY" \
--form 'file_url="https://https://docs.mistral.ai/audio/obama.mp3"' \
--form 'model="voxtral-mini-2507"'

Passing an Uploaded Audio File​

Upload the Audio File

Coming Soon...

Get the Signed URL

Coming Soon...

Send Transcription Request

Coming Soon...
JSON Output
{
  "model":"voxtral-mini-2507",
  "text":"This week, I traveled to Chicago to deliver my final farewell address to the nation, following in the tradition of presidents before me. It was an opportunity to say thank you. Whether we've seen eye to eye or rarely agreed at all, my conversations with you, the American people, in living rooms, in schools, at farms and on factory floors, at diners and on distant military outposts, All these conversations are what have kept me honest, kept me inspired, and kept me going. Every day, I learned from you. You made me a better President, and you made me a better man. Over the course of these eight years, I've seen the goodness, the resilience, and the hope of the American people. I've seen neighbors looking out for each other as we rescued our economy from the worst crisis of our lifetimes. I've hugged cancer survivors who finally know the security of affordable health care. I've seen communities like Joplin rebuild from disaster, and cities like Boston show the world that no terrorist will ever break the American spirit. I've seen the hopeful faces of young graduates and our newest military officers. I've mourned with grieving families searching for answers. And I found grace in a Charleston church. I've seen our scientists help a paralyzed man regain his sense of touch, and our wounded warriors walk again. I've seen our doctors and volunteers rebuild after earthquakes and stop pandemics in their tracks. I've learned from students who are building robots and curing diseases, and who will change the world in ways we can't even imagine. I've seen the youngest of children remind us of our obligations to care for our refugees. to work in peace, and above all, to look out for each other. That's what's possible when we come together in the slow, hard, sometimes frustrating, but always vital work of self-government. But we can't take our democracy for granted. All of us, regardless of party, should throw ourselves into the work of citizenship. Not just when there is an election. Not just when our own narrow interest is at stake. But over the full span of a lifetime. If you're tired of arguing with strangers on the Internet, try to talk with one in real life. If something needs fixing, lace up your shoes and do some organizing. If you're disappointed by your elected officials, then grab a clipboard, get some signatures, and run for office yourself. Our success depends on our participation, regardless of which way the pendulum of power swings. It falls on each of us to be guardians of our democracy. to embrace the joyous task we've been given to continually try to improve this great nation of ours. Because for all our outward differences, we all share the same proud title – citizen. It has been the honor of my life to serve you as President. Eight years later, I am even more optimistic about our country's promise. And I look forward to working along your side as a citizen for all my days that remain. Thanks, everybody. God bless you. And God bless the United States of America.",
  "language":"en",
  "segments":[],
  "usage":{
    "prompt_audio_seconds":203,
    "prompt_tokens":4,
    "total_tokens":3264,
    "completion_tokens":635
  }
}
Samples

Audio

Transcription
This week, I traveled to Chicago to deliver my final farewell address to the nation, following in the tradition of presidents before me. It was an opportunity to say thank you. Whether we've seen eye to eye or rarely agreed at all, my conversations with you, the American people, in living rooms, in schools, at farms and on factory floors, at diners and on distant military outposts, All these conversations are what have kept me honest, kept me inspired, and kept me going. Every day, I learned from you. You made me a better President, and you made me a better man. Over the course of these eight years, I've seen the goodness, the resilience, and the hope of the American people. I've seen neighbors looking out for each other as we rescued our economy from the worst crisis of our lifetimes. I've hugged cancer survivors who finally know the security of affordable health care. I've seen communities like Joplin rebuild from disaster, and cities like Boston show the world that no terrorist will ever break the American spirit. I've seen the hopeful faces of young graduates and our newest military officers. I've mourned with grieving families searching for answers. And I found grace in a Charleston church. I've seen our scientists help a paralyzed man regain his sense of touch, and our wounded warriors walk again. I've seen our doctors and volunteers rebuild after earthquakes and stop pandemics in their tracks. I've learned from students who are building robots and curing diseases, and who will change the world in ways we can't even imagine. I've seen the youngest of children remind us of our obligations to care for our refugees. to work in peace, and above all, to look out for each other. That's what's possible when we come together in the slow, hard, sometimes frustrating, but always vital work of self-government. But we can't take our democracy for granted. All of us, regardless of party, should throw ourselves into the work of citizenship. Not just when there is an election. Not just when our own narrow interest is at stake. But over the full span of a lifetime. If you're tired of arguing with strangers on the Internet, try to talk with one in real life. If something needs fixing, lace up your shoes and do some organizing. If you're disappointed by your elected officials, then grab a clipboard, get some signatures, and run for office yourself. Our success depends on our participation, regardless of which way the pendulum of power swings. It falls on each of us to be guardians of our democracy. to embrace the joyous task we've been given to continually try to improve this great nation of ours. Because for all our outward differences, we all share the same proud title – citizen. It has been the honor of my life to serve you as President. Eight years later, I am even more optimistic about our country's promise. And I look forward to working along your side as a citizen for all my days that remain. Thanks, everybody. God bless you. And God bless the United States of America.

Language English

Transcription with Timestamps​

You can request timestamps for the transcription by passing the timestamp_granularities parameter, currently supporting segment. It will return the start and end time of each segment in the audio file.

curl --location 'https://api.mistral.ai/v1/audio/transcriptions' \
--header "x-api-key: $MISTRAL_API_KEY" \
--form 'file_url="https://https://docs.mistral.ai/audio/obama.mp3"' \
--form 'model="voxtral-mini-2507"'
--form 'timestamp_granularities="segment"'
JSON Output
{
  "model":"voxtral-mini-2507",
  "text":"This week, I traveled to Chicago to deliver my final farewell address to the nation, following in the tradition of presidents before me. It was an opportunity to say thank you. Whether we've seen eye to eye or rarely agreed at all, My conversations with you, the American people, in living rooms, in schools, at farms, on factory floors, at diners, and on distant military outposts – all these conversations are what have kept me honest, kept me inspired, and kept me going. Every day, I learned from you. You made me a better President, and you made me a better man. Over the course of these eight years, I've seen the goodness, the resilience, and the hope of the American people. I've seen neighbors looking out for each other as we rescued our economy from the worst crisis of our lifetimes. I've hugged cancer survivors who finally know the security of affordable health care. I've seen communities like Joplin rebuild from disaster, and cities like Boston show the world that no terrorist will ever break the American spirit. I've seen the hopeful faces of young graduates and our newest military officers. I've mourned with grieving families searching for answers. And I found grace in a Charleston church. I've seen our scientists help a paralyzed man regain his sense of touch, and our wounded warriors walk again. I've seen our doctors and volunteers rebuild after earthquakes and stop pandemics in their tracks. I've learned from students who are building robots and curing diseases, and who will change the world in ways we can't even imagine. I've seen the youngest of children remind us of our obligations to care for our refugees, to work in peace, and above all, to look out for each other. That's what's possible when we come together in the slow, hard, sometimes frustrating, but always vital work of self-government. But we can't take our democracy for granted. All of us, regardless of party, should throw ourselves into the work of citizenship – not just when there is an election, not just when our own narrow interest is at stake, but over the full span of a lifetime. If you're tired of arguing with strangers on the Internet, try to talk with one in real life. If something needs fixing, lace up your shoes and do some organizing. If you're disappointed by your elected officials, then grab a clipboard, get some signatures, and run for office yourself. Our success depends on our participation, regardless of which way the pendulum of power swings. It falls on each of us to be guardians of our democracy, to embrace the joyous task we've been given to continually try to improve this great nation of ours. Because for all our outward differences, we all share the same proud title – citizen. It has been the honor of my life to serve you as President. Eight years later, I am even more optimistic about our country's promise. And I look forward to working along your side as a citizen for all my days that remain. Thanks, everybody. God bless you. And God bless the United States of America.",
  "language":"en",
  "segments":[
    {"text":"This week, I traveled to Chicago to deliver my final farewell address to the nation, following in the tradition of presidents before me.","start":0.0,"end":68.9},
    {"text":" It was an opportunity to say thank you.","start":68.9,"end":71.7},
    {"text":" Whether we've seen eye to eye or rarely agreed at all,","start":71.7,"end":75.1},
    {"text":" My conversations with you, the American people, in living rooms, in schools, at farms, on","start":75.1,"end":81.8},
    {"text":" factory floors, at diners, and on distant military outposts – all these conversations","start":81.8,"end":88.3},
    {"text":" are what have kept me honest, kept me inspired, and kept me going.","start":88.3,"end":93.3},
    {"text":" Every day, I learned from you.","start":93.3,"end":95.4},
    {"text":" You made me a better President, and you made me a better man.","start":95.4,"end":99.8},
    {"text":" Over the course of these eight years, I've seen the goodness, the resilience, and the","start":99.8,"end":104.1},
    {"text":" hope of the American people.","start":104.1,"end":106.4},
    {"text":" I've seen neighbors looking out for each other as we rescued our economy from the worst","start":106.4,"end":110.0},
    {"text":" crisis of our lifetimes.","start":110.0,"end":112.2},
    {"text":" I've hugged cancer survivors who finally know the security of affordable health care.","start":112.2,"end":117.1},
    {"text":" I've seen communities like Joplin rebuild from disaster, and cities like Boston show","start":117.1,"end":122.0},
    {"text":" the world that no terrorist will ever break the American spirit.","start":122.0,"end":127.0},
    {"text":" I've seen the hopeful faces of young graduates and our newest military officers.","start":127.0,"end":132.0},
    {"text":" I've mourned with grieving families searching for answers.","start":132.0,"end":135.5},
    {"text":" And I found grace in a Charleston church.","start":135.5,"end":138.5},
    {"text":" I've seen our scientists help a paralyzed man regain his sense of touch, and our wounded","start":138.5,"end":143.9},
    {"text":" warriors walk again.","start":143.9,"end":146.3},
    {"text":" I've seen our doctors and volunteers rebuild after earthquakes and stop pandemics in their","start":146.3,"end":151.6},
    {"text":" tracks.","start":151.6,"end":152.6},
    {"text":" I've learned from students who are building robots and curing diseases, and who will change","start":152.6,"end":157.2},
    {"text":" the world in ways we can't even imagine.","start":157.2,"end":160.0},
    {"text":" I've seen the youngest of children remind us of our obligations to care for our refugees,","start":160.0,"end":166.9},
    {"text":" to work in peace, and above all, to look out for each other.","start":166.9,"end":172.0},
    {"text":" That's what's possible when we come together in the slow, hard, sometimes frustrating,","start":172.0,"end":177.3},
    {"text":" but always vital work of self-government.","start":177.3,"end":180.3},
    {"text":" But we can't take our democracy for granted.","start":180.3,"end":183.8},
    {"text":" All of us, regardless of party, should throw ourselves into the work of citizenship –","start":183.8,"end":189.7},
    {"text":" not just when there is an election, not just when our own narrow interest is at stake,","start":189.7,"end":195.3},
    {"text":" but over the full span of a lifetime.","start":195.3,"end":198.1},
    {"text":" If you're tired of arguing with strangers on the Internet, try to talk with one in real life.","start":198.1,"end":203.5},
    {"text":" If something needs fixing, lace up your shoes and do some organizing.","start":204.4,"end":208.4},
    {"text":" If you're disappointed by your elected officials, then grab a clipboard, get some signatures, and run for office yourself.","start":209.1,"end":215.7},
    {"text":" Our success depends on our participation, regardless of which way the pendulum of power swings.","start":216.5,"end":224.4},
    {"text":" It falls on each of us to be guardians of our democracy, to embrace the joyous task we've been given to continually try to improve this great nation of ours.","start":225.2,"end":234.6},
    {"text":" Because for all our outward differences, we all share the same proud title – citizen.","start":235.3,"end":241.7},
    {"text":" It has been the honor of my life to serve you as President.","start":242.7,"end":245.9},
    {"text":" Eight years later, I am even more optimistic about our country's promise.","start":246.9,"end":250.3},
    {"text":" And I look forward to working along your side as a citizen for all my days that remain.","start":250.9,"end":257.3},
    {"text":" Thanks, everybody. God bless you.","start":258.4,"end":260.6},
    {"text":" And God bless the United States of America.","start":261.2,"end":263.4}
  ],
  "usage":{
    "prompt_audio_seconds":203,
    "prompt_tokens":5,
    "total_tokens":4001,
    "completion_tokens":1371
  }
}