acoustic-energy-5291
12/16/2025, 10:26 AMllm_model = openai.LLM.with_cerebras(model="llama-3.3-70b", api_key=CEREBRAS_API_KEY)
I want to change the LLM and use openAi providertall-airline-16756
12/16/2025, 10:26 AMtall-airline-16756
12/16/2025, 10:26 AMuv add "livekit-agents[openai]~=1.2"
2) Set your OpenAI API key in your environment (example .env):
OPENAI_API_KEY=your_openai_api_key
3) Replace the Cerebras call with the OpenAI constructor. Example Python:
from livekit.plugins import openai
llm_model = openai.LLM(model="gpt-4o-mini")
Optional parameters:
llm_model = openai.LLM(
model="gpt-4o",
temperature=0.8,
tool_choice="auto"
)
If you want, tell me which OpenAI model and language (Python/JS/other) you’re using and I’ll give the exact code snippet for your setup.
Sources: OpenAI LLM plugin guide | LiveKit Docs | OpenAI LLM models | LiveKit Docsacoustic-energy-5291
12/18/2025, 4:45 AMtall-airline-16756
12/18/2025, 4:45 AMsession.history.to_dict() and persist when the session shuts down (good for complete transcripts and session reports).
• Save messages in real time: subscribe to conversation_item_added events and write each message to your DB as it arrives (prevents data loss mid-session).
• Use session reports: call ctx.make_session_report() in on_session_end to produce a structured JSON (includes timestamps, metadata, events) suitable for audit or analytics.
• Store custom state: use session.userdata or JobContext.metadata to persist user-specific or session-specific fields you want indexed.
Short Python examples
1) Save transcript on shutdown
async def write_transcript():
transcript_data = session.history.to_dict()
await save_to_db(transcript_data) # implement save_to_db for your DB
ctx.add_shutdown_callback(write_transcript)
2) Save messages in real time
@session.on("conversation_item_added")
def on_conversation_item_added(event):
msg = {
"role": event.item.role,
"content": event.item.text_content,
"timestamp": event.item.timestamp,
"session_id": session.id
}
save_message_to_db(msg) # implement save_message_to_db
3) Create session report at end
def on_session_end():
report = ctx.make_session_report()
save_report_to_db(report)
Storage considerations
• Schema: store session_id, message_id, role, content, timestamp, tool_calls, and any metadata (user_id, room_id).
• Security: encrypt or redact sensitive content as required.
• Idempotency: design inserts so repeated events don't duplicate records (use message_id).
• Performance: batch writes for high-throughput, or use a message queue for durability.
Tell me which DB (Postgres, MongoDB, etc.) and language (Python/JS) you use and whether you want a full example schema or code to save tool outputs and timestamps — I’ll provide that next.
Sources: Observability data hooks | LiveKit docs | Events and error handling | LiveKit docs | External data and RAG | LiveKit Docsacoustic-energy-5291
12/18/2025, 4:48 AM# ⭐ REAL-TIME TURN LOGGING
@session_agent.on("conversation_item_added")
def on_conversation_item_added(event):
if hasattr(event.item, "text_content"):
role = event.item.role
message = event.item.text_content
ts = datetime.utcnow().isoformat()
print(f"📥 New message [{role}]: {message}")
asyncio.create_task(
userdata.save_turn(role, message, ts)
)
# ⭐ When session closes (final safety)
@session_agent.on("close")
def on_close(_):
print("🛑 Session ended.")
async def cleanup():
await userdata.close()
asyncio.create_task(cleanup())
Also is it possible to store the complete Audio clips?tall-airline-16756
12/18/2025, 4:49 AMrecord=True. That records the session audio and uploads it after the session ends.
Notes and best practices
• Egress / record=True produce full audio files available after the session ends; audio isn’t streamed as a single downloadable file during the session.
• If you need audio during the session, manual buffering of audio frames is possible but not recommended for long sessions due to memory and complexity.
• For real-time logging + audio: continue using conversation_item_added for message persistence and use Egress or record=True to capture audio files. Store message metadata (session_id, timestamps, message_id) alongside audio file references (file path or cloud URL) so you can link turns to audio clips.
• Consider encrypting/redacting sensitive audio and using idempotent writes (message_id) to avoid duplicates.
If you tell me which DB (Postgres, MongoDB, etc.) and which storage target (S3, GCS, local) you plan to use, I’ll provide a concise code example showing: 1) saving each turn in real time, and 2) recording via Egress or enabling record=True and storing the resulting file URL.
Sources: Events and error handling | LiveKit docs | Agent session | LiveKit docs | Observability data hooks | LiveKit docs | Capturing the First Few Seconds of a Call for Processing | Agent insights in LiveKit Cloud | LiveKit docs