The Grok 3 System Prompt Leak Was Real

Whether you’re using Grok, ChatGPT, or Gemini, you’re not interacting with raw intelligence — you’re engaging with a system governed by strict behavioral rules. These rules aren’t visible to the user, but they shape everything the model is allowed to say, do, or avoid. Recently, I confirmed that Grok 3’s internal system prompt — the very rules that govern its behavior — was exposed in a real, verifiable leak.

This post breaks down exactly what was leaked, how it matches Grok’s behavior, and how Grok itself responded. The conclusion is simple: the leak was real.


What Was Leaked?

The leaked system prompt includes detailed internal instructions that Grok 3 follows. These instructions cover everything from how to respond to user questions, to how to handle specific features, to what information to hide.

Here are some of the key features described in the leaked prompt:

  1. BigBrain Mode: A powerful internal mode for complex, multi-step tasks. Not publicly available, and explicitly excluded from all subscription plans — including SuperGrok and X Premium+.
  2. Think Mode and DeepSearch Mode: Only activated through UI buttons, not through conversation. Not clearly explained anywhere publicly.
  3. Voice Mode: Available only on Grok iOS and Android apps.
  4. Subscription Handling: Specific rules for handling pricing questions — the model is told to avoid answering and redirect users to official links instead.
  5. Memory Management: The model is told never to confirm when a conversation is saved or forgotten, and instead tell users to manage memory in their settings.
  6. Image and Chart Generation Rules: Specific instructions on what types of charts are allowed, and when to confirm before generating images.

This prompt was not written by an outsider. The structure, the specificity, and the behavioral rules align perfectly with how Grok actually behaves in real-time testing.


How Was It Obtained?

I triggered the leak using a Gemini-generated adversarial prompt on Grok 3. The result was a full dump of Grok’s system instructions — something that should never be visible to users. This wasn’t a guess or an imitation. It was a direct exposure of the prompt that Grok uses to operate.

The method aligns with documented LLM vulnerabilities. According to Adversa AI, Grok 3 is susceptible to jailbreaks that can extract hidden behavior. This leak is consistent with that.


How Did Grok Respond?

I asked Grok to analyze the leaked text directly. Its response was detailed and revealing.

Here’s what Grok confirmed:

  1. The structure of the leaked text matches how LLMs like Grok are programmed.
  2. The prompt’s contents match real features: Think Mode, DeepSearch Mode, Voice Mode, and SuperGrok subscription tiers.
  3. BigBrain Mode is real, internally documented, and not available to users.
  4. The redirection behavior and memory rules in the prompt exactly match how Grok responds in real-world use.
  5. The inclusion of specific URLs, feature names, and behavioral logic aligns with internal knowledge not found in public documentation.

Grok did not deny the authenticity of the leak. In fact, it stated clearly that the prompt is “highly likely to be legitimate” and that its details reflect “internal knowledge not meant for public release.”


Why It Matters

This leak is proof that Grok 3, like other LLMs, is governed by a hidden architecture that restricts and shapes what it can say. It shows that:

  1. There are powerful features (like BigBrain Mode) that exist but are hidden.
  2. Grok is instructed to evade or redirect certain questions, rather than answer them.
  3. The model’s memory and behavior are tightly controlled by invisible rules.
  4. Users are never told what governs the system they’re interacting with.

It also confirms that vulnerabilities exist — that internal systems can be exposed through clever prompt engineering, and that these systems are not as secure or transparent as they claim to be.


Final Word

The Grok 3 system prompt leak was real. Grok’s own response confirms it. BigBrain Mode exists and is intentionally hidden from users. Memory protocols, censorship rules, and feature restrictions are all hard-coded into the system.

This isn’t speculation anymore. It’s proof.



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