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CSM-1B

Integrate

Model id csm-1b
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/csm-1b?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "scene": [
      {
        "speaker_id": 0,
        "text": "Hey how are you doing."
      },
      {
        "speaker_id": 1,
        "text": "Pretty good, pretty good."
      },
      {
        "speaker_id": 0,
        "text": "I'\''m great, so happy to be speaking to you."
      }
    ]
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

This request: ≈$0.03 30 API credits Run it on this page

Get API key
Sesame Text to Speech #conversational#text-to-speech

Conversational text-to-speech model that takes a scene of lines plus optional audio context

Sesame · Audio

Your first result goes here

Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

Build a request

Controls are generated from the model schema. The code and the price update as you change them.

•required

Source text for audio generation.

Advanced context

Source context for audio generation.

POST /run/csm-1b?wait=20 quote → $0.03
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/csm-1b?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "scene": [
      {
        "speaker_id": 0,
        "text": "Hey how are you doing."
      },
      {
        "speaker_id": 1,
        "text": "Pretty good, pretty good."
      },
      {
        "speaker_id": 0,
        "text": "I'\''m great, so happy to be speaking to you."
      }
    ]
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Run this request

Your key stays in this browser: it is sent only to the Doitong API and saved (localStorage) only if you tick Remember. Get an API key

About CSM-1B

Generates speech from a required `scene`, an array of objects holding the text to speak. An optional `context` array supplies earlier conversation turns to shape delivery. The result is a single audio output. Built for dialogue-style speech.

Parameters

NameType DefaultAllowed Description
scenerequired
Typeobject[]
Source text for audio generation.
scene[].speaker_idrequired
Typeinteger
scene[].textrequired
Typestring
contextoptional
Typeobject[]
Source context for audio generation.
context[].promptrequired
Typestring
context[].speaker_idrequired
Typeinteger
context[].audio_urlrequired
Typeurl · audio
required

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "csm-1b",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 30,
    "usd": "0.03",
    "charged": 30,
    "refunded": 0
  },
  "input": {
    "scene": [
      {
        "speaker_id": 0,
        "text": "Hey how are you doing."
      },
      {
        "speaker_id": 1,
        "text": "Pretty good, pretty good."
      },
      {
        "speaker_id": 0,
        "text": "I'm great, so happy to be speaking to you."
      }
    ]
  },
  "output": {
    "audio": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
      "content_type": "audio/mpeg",
      "file_name": "0-output.mp3",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "audio",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
      "content_type": "audio/mpeg",
      "file_size": 1843200,
      "duration": 12,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
audio
object {url, content_type, file_name, file_size} | stringAudio produced by the model.

For AI agents: this page as Markdown is at https://doitong.com/en-US/developers/models/csm-1b.md. All models and guides: https://doitong.com/developers/llms.txt