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"""
Strawberry Letter Counting
==========================

Demonstrates regular, built-in, and DeepSeek-backed reasoning for counting tasks.
"""

import asyncio

from agno.agent import Agent
from agno.models.deepseek import DeepSeek
from agno.models.openai import OpenAIChat
from rich.console import Console

# ---------------------------------------------------------------------------
# Create Agents
# ---------------------------------------------------------------------------
console = Console()

task = "How many 'r' are in the word 'strawberry'?"

regular_agent = Agent(model=OpenAIChat(id="gpt-4o"), markdown=True)

cot_agent = Agent(
    model=OpenAIChat(id="gpt-4o"),
    reasoning=True,
    markdown=True,
)

deepseek_agent = Agent(
    model=OpenAIChat(id="gpt-4o"),
    reasoning_model=DeepSeek(id="deepseek-reasoner"),
    markdown=True,
)


async def run_agents() -> None:
    console.rule("[bold blue]Counting 'r' In 'strawberry'[/bold blue]")

    console.rule("[bold green]Regular Agent[/bold green]")
    await regular_agent.aprint_response(task, stream=True)

    console.rule("[bold yellow]Built-in Reasoning Agent[/bold yellow]")
    await cot_agent.aprint_response(task, stream=True, show_full_reasoning=True)

    console.rule("[bold cyan]DeepSeek Reasoning Agent[/bold cyan]")
    await deepseek_agent.aprint_response(task, stream=True)


# ---------------------------------------------------------------------------
# Run Agents
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    asyncio.run(run_agents())

​
Run the Example

# Clone and setup repo
git clone https://github.com/agno-agi/agno.git
cd agno/cookbook/10_reasoning/agents

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

python strawberry.py