OpenRouter

Using OpenRouter for unified access to multiple LLM providers with Upsonic

Overview

OpenRouter provides unified access to models from OpenAI, Anthropic, Google, Meta, and many others through a single API. Simplifies multi-model applications with consistent pricing and routing.

Model Class: OpenAIChatModel (OpenAI-compatible API)

Authentication

export OPENROUTER_API_KEY="sk-or-..."

Examples

from upsonic import Agent, Task
from upsonic.models.openai import OpenAIChatModel

model = OpenAIChatModel(model_name="anthropic/claude-3-5-sonnet", provider="openrouter")
agent = Agent(model=model)

task = Task("Hello, how are you?")
result = agent.do(task)
print(result)

Parameters

Parameter	Type	Description	Default	Source
max_tokens	int	Maximum tokens to generate	Model default	Base
temperature	float	Sampling temperature (0.0-2.0)	1.0	Base
top_p	float	Nucleus sampling	1.0	Base
seed	int	Random seed	None	Base
stop_sequences	list[str]	Stop sequences	None	Base
presence_penalty	float	Token presence penalty	0.0	Base
frequency_penalty	float	Token frequency penalty	0.0	Base
parallel_tool_calls	bool	Allow parallel tools	True	Base
timeout	float	Request timeout (seconds)	600	Base