Lyria 2 Serverless API
Lyria 2 by Google DeepMind is an advanced model that generates high-fidelity 48kHz stereo instrumental music from text prompts or lyrics, offering precise control over tempo, key, mood, and structure.
POST /v2/lyria-2 · submit + poll 1# pip install "segmind>=1.1.0"
2# export SEGMIND_API_KEY="YOUR_API_KEY"
3import segmind
4
5# Async (v2): submit to the queue and block until COMPLETED.
6# run() returns the final result dict (600s deadline, 1.0s poll by default).
7result = segmind.run(
8 "lyria-2",
9 prompt="Melodious guitar with gentle rain background.",
10 negative_prompt="No loud drums, no vocals.",
11)
12print(result["status"]) # COMPLETED
13print(result.get("output")) # model output (e.g. media URL)
14print(result["metrics"]["inference_time"]) # server compute seconds
15
16# --- Or submit + poll manually (track request_id, control the cadence) ---
17from segmind import SegmindClient, InferenceFailed, InferenceTimeout
18
19client = SegmindClient() # reads SEGMIND_API_KEY
20payload = {
21 "prompt": "Melodious guitar with gentle rain background.",
22 "negative_prompt": "No loud drums, no vocals.",
23}
24job = client.submit_async("lyria-2", **payload)
25print(job.request_id) # available immediately
26try:
27 result = job.wait(timeout=600, interval=1.0)
28except InferenceTimeout as e:
29 print("still running:", e.request_id)
30except InferenceFailed as e:
31 print("failed:", e.detail) 1# pip install "segmind>=1.1.0"
2# export SEGMIND_API_KEY="YOUR_API_KEY"
3import segmind
4
5# Async (v2): submit to the queue and block until COMPLETED.
6# run() returns the final result dict (600s deadline, 1.0s poll by default).
7result = segmind.run(
8 "lyria-2",
9 prompt="Melodious guitar with gentle rain background.",
10 negative_prompt="No loud drums, no vocals.",
11)
12print(result["status"]) # COMPLETED
13print(result.get("output")) # model output (e.g. media URL)
14print(result["metrics"]["inference_time"]) # server compute seconds
15
16# --- Or submit + poll manually (track request_id, control the cadence) ---
17from segmind import SegmindClient, InferenceFailed, InferenceTimeout
18
19client = SegmindClient() # reads SEGMIND_API_KEY
20payload = {
21 "prompt": "Melodious guitar with gentle rain background.",
22 "negative_prompt": "No loud drums, no vocals.",
23}
24job = client.submit_async("lyria-2", **payload)
25print(job.request_id) # available immediately
26try:
27 result = job.wait(timeout=600, interval=1.0)
28except InferenceTimeout as e:
29 print("still running:", e.request_id)
30except InferenceFailed as e:
31 print("failed:", e.detail)API Endpoint
https://api.segmind.com/v1/lyria-2Parameters
promptrequiredstringDirects audio creation with a detailed theme; guides tone and mood. Example: 'Melodious guitar with gentle rain background.'
"Melodious guitar with gentle rain background."negative_promptoptionalstringExcludes specific unwanted elements from the audio. Use 'No loud drums' for softer compositions, 'No vocals' for instrumentals.
"No loud drums, no vocals."seedoptionalintegerEnsures audio consistency across generations. Use '123' for repeated serene outputs, or omit for surprise variations.
nullResponse Type
Returns: Audio
Asynchronous requests (v2)
Use Async for video, long-running (>~60s), or high-concurrency workloads; Sync is simplest for fast image & LLM calls. Async submits a request and you poll it to completion.
- 1
POST /v2/lyria-2Submit — returns request_id, status_url, response_url
- 2
GET /v2/requests/{id}/statusPoll — until COMPLETED or FAILED
- 3
GET /v2/requests/{id}Result — final response body
Status states
- A FAILED request is served as HTTP 422 — the body still carries the error detail.
- An unknown or expired request_id returns HTTP 404.
- Results are retained for 1 hour, then expire.
- Content / RAI blocks surface as FAILED, not a separate state.
- Track completion by polling the status endpoint.
Common Error Codes
The API returns standard HTTP status codes. Detailed error messages are provided in the response body.
Bad Request
Invalid parameters or request format
Unauthorized
Missing or invalid API key
Forbidden
Insufficient permissions
Not Found
Model or endpoint not found
Insufficient Credits
Not enough credits to process request
Rate Limited
Too many requests
Server Error
Internal server error
Bad Gateway
Service temporarily unavailable
Timeout
Request timed out