August 11th, 2023

Eric Ciarla imageEric Ciarla

Improving GPT-3.5, Insights from

Boost 3.5 with Mendable Tips

Improving GPT-3.5, Insights from image

In the bustling world of AI, developers and businesses are constantly seeking ways to optimize and refine their models, ensuring more consistent and accurate results. At, having processed countless messages via OpenAI’s GPT-3.5, we’ve gained valuable insights into how developers can enhance the model’s performance. Today, we’re sharing some of the valuable lessons we’ve learned, particularly around the significance of repetition and structured prompts.

1. Repetition is More Than Just a Rhetorical Device

When it comes to guiding AI, repetition stands out as a tool of paramount importance. Through our exhaustive testing and iteration processes, we found that embedding instructions 2-3 times within a prompt dramatically improved model compliance. But, it’s not about mere repetition; it’s about variety. The trick lies in rephrasing the instructions differently each time.

For instructions deemed critically important, our recommendation is to strategically place them towards the end of the prompt, right before the model completion. This positioning acts as a reinforcing reminder for the model, ensuring that the vital directive isn’t lost or overlooked.

2. The Art of Structured Prompts

While repetition provides a foundation, the structure of your prompt serves as the scaffolding that holds the entire interaction together. The structure may differ based on use cases, but one effective strategy we discovered involves wrapping the prompt’s instructions within tags, such as [INSTRUCTIONS].

This strategy was also endorsed by other industry experts like Anthropic, who suggests that different components of the prompt can benefit from being encapsulated within specific tags. Our rigorous testing confirms this. By segregating and tagging elements of your prompt, you provide the model with a clearer blueprint, making the AI’s response more aligned with the desired output.

The Advantage

Developers understand the potential time drain that arises from constantly tweaking and refining AI prompts. But what if there was a way to streamline this process, ensuring optimized performance without the associated headache?


We provide a robust platform designed to expedite the process of building enterprise-grade AI chat applications. Say goodbye to wasted engineering hours and let us help you craft the most effective prompts for GPT-3.5, ensuring you harness its full potential effortlessly.

In summary, understanding and mastering the nuances of prompt optimization can be the difference between mediocre AI interactions and stellar AI-powered conversations. As we move forward, the tools and insights we gain will be crucial in realizing the full potential of language models. is committed to being at the forefront of these advancements, providing invaluable tools and insights to the broader AI community.