> ## Documentation Index
> Fetch the complete documentation index at: https://phidatainc.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Decimal Comparison Reasoning

> Compare plain, built-in, and DeepSeek-backed reasoning agents on the 9.11 vs 9.9 test.

Demonstrates regular, built-in, and DeepSeek-backed reasoning for 9.11 vs 9.9.

```python is_9_11_bigger_than_9_9.py theme={null}
"""
Decimal Comparison Reasoning
============================

Demonstrates regular, built-in, and DeepSeek-backed reasoning for 9.11 vs 9.9.
"""

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

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

task = "9.11 and 9.9 -- which is bigger?"

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

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

regular_agent_claude = Agent(model=Claude("claude-3-5-sonnet-20241022"), markdown=True)

deepseek_agent_claude = Agent(
    model=Claude("claude-3-5-sonnet-20241022"),
    reasoning_model=DeepSeek(id="deepseek-reasoner"),
    markdown=True,
)

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

# ---------------------------------------------------------------------------
# Run Agents
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    console.rule("[bold blue]Regular OpenAI Agent[/bold blue]")
    regular_agent_openai.print_response(task, stream=True)

    console.rule("[bold yellow]OpenAI Built-in Reasoning Agent[/bold yellow]")
    cot_agent_openai.print_response(task, stream=True, show_full_reasoning=True)

    console.rule("[bold green]Regular Claude Agent[/bold green]")
    regular_agent_claude.print_response(task, stream=True)

    console.rule("[bold cyan]Claude + DeepSeek Reasoning Agent[/bold cyan]")
    deepseek_agent_claude.print_response(task, stream=True)

    console.rule("[bold magenta]OpenAI + DeepSeek Reasoning Agent[/bold magenta]")
    deepseek_agent_openai.print_response(task, stream=True)
```

## Run the Example

<Steps>
  <Snippet file="create-venv-step.mdx" />

  <Step title="Install dependencies">
    ```bash theme={null}
    uv pip install -U agno anthropic openai
    ```
  </Step>

  <Step title="Export your API keys">
    <CodeGroup>
      ```bash Mac/Linux theme={null}
      export ANTHROPIC_API_KEY="your_anthropic_api_key_here"
      export DEEPSEEK_API_KEY="your_deepseek_api_key_here"
      export OPENAI_API_KEY="your_openai_api_key_here"
      ```

      ```bash Windows theme={null}
      $Env:ANTHROPIC_API_KEY="your_anthropic_api_key_here"
      $Env:DEEPSEEK_API_KEY="your_deepseek_api_key_here"
      $Env:OPENAI_API_KEY="your_openai_api_key_here"
      ```
    </CodeGroup>
  </Step>

  <Step title="Run the example">
    Save the code above as `is_9_11_bigger_than_9_9.py`, then run:

    ```bash theme={null}
    python is_9_11_bigger_than_9_9.py
    ```
  </Step>
</Steps>

Full source: [cookbook/10\_reasoning/agents/is\_9\_11\_bigger\_than\_9\_9.py](https://github.com/agno-agi/agno/blob/main/cookbook/10_reasoning/agents/is_9_11_bigger_than_9_9.py)