Can All LLM Fail Together

📰 Medium · LLM

Understand why LLMs can fail differently despite sharing similar architecture and training objectives, and learn to analyze their unique failure modes

intermediate Published 27 Apr 2026

Action Steps

Analyze the training data used for each LLM to identify potential failure modes
Evaluate the interaction model and prompt design for each LLM to understand how they impact failure
Compare the architecture and training objectives of different LLMs to identify similarities and differences
Test LLMs with diverse prompts and inputs to observe their unique failure modes
Develop strategies to mitigate and address LLM failures based on their specific failure modes

Who Needs to Know This

Data scientists and AI engineers working with LLMs can benefit from understanding the nuances of LLM failure modes to improve model reliability and robustness

Key Insight

💡 LLMs can have vastly different failure modes despite sharing similar principles, due to factors like training data, interaction models, and architecture

Key Takeaways

Understand why LLMs can fail differently despite sharing similar architecture and training objectives, and learn to analyze their unique failure modes

Full Article

Title: Can All LLM Fail Together

URL Source: https://dhirajpatra.medium.com/can-all-llm-fail-together-558a0bff6c05?source=rss------llm-5

Published Time: 2026-04-27T05:12:48Z

Markdown Content:
# Can All LLM Fail Together. No, you can’t assume that if one LLM… | by Dhiraj Patra | Apr, 2026 | Medium

[Sitemap](https://dhirajpatra.medium.com/sitemap/sitemap.xml)

[Open in app](https://play.google.com/store/apps/details?id=com.medium.reader&referrer=utm_source%3DmobileNavBar&source=post_page---top_nav_layout_nav-----------------------------------------)

Sign up

[Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fdhirajpatra.medium.com%2Fcan-all-llm-fail-together-558a0bff6c05&source=post_page---top_nav_layout_nav-----------------------global_nav------------------)

[](https://medium.com/?source=post_page---top_nav_layout_nav-----------------------------------------)

Get app

[Write](https://medium.com/m/signin?operation=register&redirect=https%3A%2F%2Fmedium.com%2Fnew-story&source=---top_nav_layout_nav-----------------------new_post_topnav------------------)

[Search](https://medium.com/search?source=post_page---top_nav_layout_nav-----------------------------------------)

Sign up

[Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fdhirajpatra.medium.com%2Fcan-all-llm-fail-together-558a0bff6c05&source=post_page---top_nav_layout_nav-----------------------global_nav------------------)

![Image 1](https://miro.medium.com/v2/resize:fill:64:64/1*dmbNkD5D-u45r44go_cf0g.png)

Member-only story

# Can All LLM Fail Together

[![Image 2: Dhiraj Patra](https://miro.medium.com/v2/resize:fill:64:64/1*5_PwVLLbSZTn4C-bIGhDfg.jpeg)](https://dhirajpatra.medium.com/?source=post_page---byline--558a0bff6c05---------------------------------------)

[Dhiraj Patra](https://dhirajpatra.medium.com/?source=post_page---byline--558a0bff6c05---------------------------------------)

Follow

4 min read

·

Just now

[](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2F_%2Fvote%2Fp%2F558a0bff6c05&operation=register&redirect=https%3A%2F%2Fdhirajpatra.medium.com%2Fcan-all-llm-fail-together-558a0bff6c05&user=Dhiraj+Patra&userId=36901c5db84&source=---header_actions--558a0bff6c05---------------------clap_footer------------------)

[](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2F_%2Fbookmark%2Fp%2F558a0bff6c05&operation=register&redirect=https%3A%2F%2Fdhirajpatra.medium.com%2Fcan-all-llm-fail-together-558a0bff6c05&source=---header_actions--558a0bff6c05---------------------bookmark_footer------------------)

[Listen](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2Fplans%3Fdimension%3Dpost_audio_button%26postId%3D558a0bff6c05&operation=register&redirect=https%3A%2F%2Fdhirajpatra.medium.com%2Fcan-all-llm-fail-together-558a0bff6c05&source=---header_actions--558a0bff6c05---------------------post_audio_button------------------)

Share

Press enter or click to view image in full size

![Image 3](https://miro.medium.com/v2/resize:fit:700/1*6HJJlxfqOZl62inmjUTaLw.jpeg)

generated by meta ai

No, you can’t assume that if one LLM fails, others will necessarily follow.

Here’s the correct way to think about it, broken down by your observations.

**1. Why the “Same Principles” Don’t Guarantee Identical Failure**

You’re absolutely right that most LLMs share the same fundamental architecture (Transformer), training objective (next-token prediction), and interaction model (prompt-in, text-out). However, this is like saying all cars have an internal combustion engine, four wheels, and a steering wheel. A Toyota Camry and a Formula 1 car share those principles but have vastly different failure modes.

An LLM’s behavior is an emergent product of many variables, not just the core architecture. Two models can fail completely differently on the same prompt due to:

- **Training Data:** The single biggest differentiator. A model trained on a massive code dataset (like Code Llama) will

Read full article → ← Back to Reads

Can All LLM Fail Together

Key Takeaways

Full Article

Related Videos