Lepton AI

Use Lepton AI’s serverless AI endpoints for chat completions and speech-to-text through Portkey.

Quick Start

Get started with Lepton AI in under 2 minutes:

Python

from portkey_ai import Portkey

# 1. Install: pip install portkey-ai
# 2. Add @lepton provider in model catalog
# 3. Use it:

portkey = Portkey(api_key="PORTKEY_API_KEY")

response = portkey.chat.completions.create(
    model="@lepton/llama-3.1-8b",
    messages=[{"role": "user", "content": "Hello!"}]
)

print(response.choices[0].message.content)

Add Provider in Model Catalog

Before making requests, add Lepton AI to your Model Catalog:

1. Go to Model Catalog → Add Provider
2. Select Lepton AI
3. Enter your Lepton API key
4. Name your provider (e.g., lepton)

Complete Setup Guide

See all setup options and detailed configuration instructions

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Lepton AI Capabilities

Chat Completions

Generate chat completions with Lepton’s serverless models:

Python

from portkey_ai import Portkey

portkey = Portkey(api_key="PORTKEY_API_KEY", provider="@lepton")

response = portkey.chat.completions.create(
    model="llama-3.1-8b",
    messages=[{"role": "user", "content": "Write a haiku about AI"}]
)

print(response.choices[0].message.content)

Speech-to-Text

Transcribe audio using Lepton’s Whisper models:

Python

from portkey_ai import Portkey

portkey = Portkey(api_key="PORTKEY_API_KEY", provider="@lepton")

with open("audio.mp3", "rb") as audio_file:
    transcription = portkey.audio.transcriptions.create(
        file=audio_file,
        model="whisper-large-v3"
    )

print(transcription.text)

Streaming

Enable streaming for real-time responses:

Python

from portkey_ai import Portkey

portkey = Portkey(api_key="PORTKEY_API_KEY", provider="@lepton")

stream = portkey.chat.completions.create(
    model="llama-3.1-8b",
    messages=[{"role": "user", "content": "Write a story about a robot"}],
    stream=True
)

for chunk in stream:
    print(chunk.choices[0].delta.content, end="")

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Supported Models

Lepton AI provides serverless access to various models:

Model	Description
llama-3.1-8b	Llama 3.1 8B model
llama-3-8b-sft-v1	Fine-tuned Llama 3
whisper-large-v3	Speech-to-text

Check Lepton’s documentation for the complete model list.

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Next Steps

Gateway Configs

Add fallbacks, load balancing, and more

Observability

Monitor and trace your Lepton requests

Prompt Library

Manage and version your prompts

Metadata

Add custom metadata to requests

For complete SDK documentation:

SDK Reference

Complete Portkey SDK documentation