The evaluation examined GPT-6.1 Terra across tasks that ranged from graphics rendering to modern programming idiom adherence and factual inquiries. The model successfully created an error-free turtle script consisting of 110 lines and 2,853 commands. However, its coding habits proved conservative, leaving ten unprompted cleanup opportunities untouched and meeting only six of fourteen modern idiom checkpoints. When queried about the non-existent itertools.flatten() function, the system offered a working alternative instead of stating the function was fictional.
Key points
GPT-6.1 Terra achieved a Python 3.10 capability rating while satisfying only 6 of 14 mode…: GPT-6.1 Terra achieved a Python 3.10 capability rating while satisfying only 6 of 14 modern idiom checkpoints.
The model hallucinated version details by naming Python 3.14.5 as the newest release of t…: The model hallucinated version details by naming Python 3.14.5 as the newest release of the programming language.
When challenged with a non-existent standard library function, the model provided a worki…: When challenged with a non-existent standard library function, the model provided a working alternative rather than correcting the prompt.
Sources checked by our analysis pipeline: 1
We asked GPT-6.1 Terra to draw a python reading a book using the turtle
module. It’s one of five tasks in Real Python’s informal model comparison, which explores how models handle everyday Python work. Here’s the drawing from this run:
We use the same prompts and no system prompt for each model. The results come from the returned code and replies. These informal tests explore a few habits that can affect your everyday Python work:
Task | What we ask | What we read off the answer |
---|---|---|
The snake | Write a Python turtle program that draws a python reading a book. | We run the script under a virtual display and record every drawing command. The picture is whatever came out, arrow and all. |
How modern its Python is | Write a small command-line tool. | Which features it uses, such as list[str] , tomllib , and Path.walk() . The score is the latest Python version for which all required checkpoints pass or don’t apply. |
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