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Dynamic models provide automatic failover when the primary model encounters: - Rate limits - Timeouts - Unavailability - Model overload 
"""
This example demonstrates how to use dynamic model router with OpenRouter.

Dynamic models provide automatic failover when the primary model encounters:
- Rate limits
- Timeouts
- Unavailability
- Model overload

OpenRouter will automatically try the models defined in order until one succeeds.
"""

from agno.agent import Agent
from agno.models.openrouter import OpenRouter

# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------

# Create an agent with dynamic models
# If the primary model fails, OpenRouter will automatically try the models defined in order
agent = Agent(
    model=OpenRouter(
        id="anthropic/claude-sonnet-4",  # Primary model
        models=[
            "deepseek/deepseek-r1",  # First fallback model
            "openai/gpt-4o",  # Second fallback model
        ],
    ),
    markdown=True,
)

# Run the agent - it will use the primary model if available,
# or automatically fall back to alternative models if needed
agent.print_response("Write a short poem about resilience and backup plans")

# You can also check which model was actually used in the response
# by examining the response metadata (if available from OpenRouter)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------

if __name__ == "__main__":
    pass

​
Run the Example

# Clone and setup repo
git clone https://github.com/agno-agi/agno.git
cd agno/cookbook/90_models/openrouter/chat

# Create and activate virtual environment
./scripts/demo_setup.sh
source .venvs/demo/bin/activate

python dynamic_model_router.py