How to Make Janitor AI Responses Shorter in 2026

Open your web browser and search for "Janitor AI" to locate the official website 0:00. Click the official Janitor AI result from your search results.

Verify you're on the correct domain by checking for standard Janitor AI branding and interface elements. The homepage should display sign-in options and account access features. If you're not logged in, enter your credentials to proceed.

Locate your profile icon in the top right corner of the Janitor AI homepage—typically a circular avatar or account symbol 0:13. Click this icon to reveal a dropdown menu with account options.

From the dropdown, select My Chats. This redirects you to a dedicated page displaying all your active character conversations with thumbnails or names of each character.

Browse your list of available character chats and identify the one requiring response length adjustment 0:25. Each character displays their name, avatar, and a preview of your last message. Click the specific character whose settings you want to modify.

After selection, the chat interface displays your complete message history in chronological order. Remember that settings apply per conversation, not globally—you'll repeat this process for each character requiring shorter responses.

Inside your active character chat, locate the menu icon in the upper portion of the interface, typically three horizontal lines (hamburger menu) 0:45. Click this icon to reveal the chat options panel.

The menu should be clearly visible without scrolling. When clicked, it expands to show various configuration options specific to this conversation, either sliding in from the side or appearing as a dropdown overlay.

Within the expanded chat options panel, locate API Settings [0:55]. This option controls the technical parameters governing AI response generation for this specific conversation. Click API Settings to enter the configuration interface.

The API Settings section exposes underlying parameters that control AI behavior beyond basic chat functionality. You'll find various configuration options and input fields here. Familiarize yourself with the layout before proceeding.

Inside the API Settings panel, search for an option labeled Advanced Prompt or similar terminology [1:16]. This field may be collapsed initially, requiring expansion via click. The advanced prompt serves as the instruction set the AI reads before generating each response.

Click the Advanced Prompt field or section to access the text input area. This is where you'll write custom instructions for response length control. The field should be clearly marked and support multi-line text input.

Think of the advanced prompt as a directive you establish before every conversation turn. Your instructions here set foundational rules for AI behavior. The advanced prompt takes precedence over default system behaviors, giving you fine-grained control over response characteristics.

In the advanced prompt text box, compose a clear, direct instruction explicitly limiting response length [1:16 to 2:00]. A recommended format is: "Only reply with the most important answer. Maximum one sentence unless I ask for more."

This wording establishes a hard default limit while preserving flexibility for detailed responses when needed. The instruction prioritizes brevity without eliminating the AI's ability to elaborate upon request. Use direct, unambiguous language to ensure consistent interpretation.

Customizing Your Length Instruction

Refine your instruction by specifying exact limits if needed. For example: "Keep all responses under 50 words" or "Limit replies to 2-3 sentences maximum." More specific instructions produce more predictable output.

Alternatively, adjust your instruction's tone while maintaining the length constraint. Some users prefer "Please keep responses concise and focused" while others use firmer language. Test different phrasings to discover what works best for your preferred AI personality.

Avoid combining conflicting directives in a single prompt. Don't mix brevity requests with demands for comprehensive explanations. Keep your instruction focused solely on length control for maximum effectiveness.

Best Practices for Prompt Writing

Maintain a polite but firm tone when crafting your advanced prompt. The AI responds better to clear directives than vague suggestions. Phrase your instruction as a rule rather than a preference.

Keep your entire advanced prompt relatively short. A concise instruction about conciseness proves more effective than a lengthy paragraph. The AI should parse and apply your rule instantly with each response generation.

Consider your use case when setting length limits. Quick information retrieval benefits from stricter limits, while creative storytelling or roleplay may require slightly more flexibility to prevent overly verbose responses while maintaining engagement.

After entering your response length instruction in the advanced prompt field, locate the Save Settings button within the API Settings panel, typically positioned at the bottom [2:00]. Click Save Settings to apply your changes to the current conversation.

The system stores your custom prompt as the new default for this specific character chat. You should see a confirmation message or visual indicator confirming successful save. Changes take effect immediately for all future messages in this conversation.

Without clicking save, your instruction will be lost when you leave the settings panel. Verify that your changes are preserved before returning to the chat. After saving, close the API Settings panel and return to your normal chat interface. Your response length instruction is now active and will influence every subsequent AI-generated reply.

If you chat with multiple characters and want shorter responses from all of them, repeat the configuration process for each conversation. Settings are conversation-specific, not account-wide. Navigate back to My Chats from your profile menu to access other character conversations.

Select another character from your chat list and follow the same steps: open the hamburger menu, access API Settings, locate Advanced Prompt, and enter your length instruction. Use the same exact prompt text across multiple chats for consistency.

This repetition ensures each character interaction respects your preference for brevity. While it requires a few extra minutes of setup, the result is a consistently concise experience across your entire Janitor AI account. Some users maintain different length settings for different characters based on their purpose—very brief responses from information-focused characters but slightly longer replies from creative roleplay characters.

After saving your configuration, send a test message to your character to verify the new length settings function correctly. Ask a question that would typically generate a lengthy response. Observe whether the AI now provides a more concise reply adhering to your instruction.

The AI should respond with a significantly shorter message compared to previous interactions. If the response remains too long, return to API Settings and make your instruction more explicit by adding specific word or sentence counts for stricter enforcement.

If responses feel too brief and abrupt, soften your instruction slightly. Remember that your instruction includes "unless I ask for more," meaning you can request detailed responses when needed. Test this flexibility by specifically asking for an expanded answer.

Continue monitoring responses over several message exchanges. The AI should consistently apply your length restriction across different topics and question types. Consistency indicates your prompt is well-structured and clear enough for reliable interpretation.

Your response length preferences may evolve over time as you optimize the balance. Return to API Settings at any time to modify your advanced prompt—the hamburger menu and API Settings remain accessible throughout your entire conversation.

When adjusting settings, keep notes on which phrasing works best. Some users find specific word counts more effective than sentence limits, while others prefer qualitative instructions like "be concise" over quantitative constraints.

When experimenting with different prompt phrasings, change one element at a time and test thoroughly. This approach identifies which specific instruction elements produce the desired effect. Save each working version before trying variations.

Click Save Settings after every modification. Your changes won't take effect until you explicitly save them—the system doesn't auto-save prompt modifications, making this step critical.