Code Interpreter Output Not Returned

API
1

Subject: Unable to Retrieve Code Interpreter Output Without Explicit print Statement

Hi,

I’m trying to retrieve the Code Interpreter’s output using the OpenAI Assistants API. However, I can only do so if I explicitly instruct the assistant to use a print statement in the executed code.

If I do not request print, the output is not available in the API response, even though the assistant correctly responds with the expected result. This suggests that the output must be handed over internally to the assistant, but I’m unable to access it programmatically.

Steps to Reproduce

Here’s an example of my implementation:

from openai import OpenAI
import os
from dotenv import load_dotenv
import requests

load_dotenv()
client = OpenAI()

assistant = client.beta.assistants.retrieve("my_assistant")
thread = "my_thread"

message = client.beta.threads.messages.create(
    thread_id=thread,
    role="user",
    content="Use Code Interpreter to find the square root of numbers 1 through 10. (Ensure you use `print` to display the result.)"
)

print("Starting run stream...")

stream = client.beta.threads.runs.create(
    thread_id=thread,
    assistant_id=assistant.id,
    instructions="Please address the user as Jane Doe. The user has a premium account.",
    stream=True,
)

stream_content = []
for event in stream:
    stream_content.append(event)

    if event.event == "thread.message.created":
        print("Assistant:")
    elif event.event == "thread.message.delta":
        print(event.data.delta.content[0].text.value, end='')
    elif event.event == "thread.run.step.created":
        if event.data.step_details.type == "tool_calls":
            print("Tool Call Detected:")
    elif event.event == "thread.run.step.delta":
        print(event.data.delta.step_details.tool_calls[0].code_interpreter.input, end='')

# Function concludes with 'thread.run.step.completed'

Observed Behavior

Expected Behavior

  • The API should return all Code Interpreter outputs, even if the assistant does not explicitly use print().
  • Since ChatGPT’s UI correctly displays results without print, this functionality must exist somewhere in the API.

Question

Is there a way to access the Code Interpreter’s output without requiring an explicit print statement?
Any insights would be much appreciated!

Thanks!

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