1. Help Kimi understand your world

Identity anchoring

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2. Set personalization preferences

Standardize output format

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Memory self-maintenance instructions (advanced)

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3. Positive-effect prompts

Source whitelist protocol

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Hallucination trigger checks (process-level)

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Memory limits

Memory Space currently has the following limits:

  • Up to 50 memory entries can be stored.
  • Each memory entry is limited to 500 characters.
  • Memories created before April 2026 may exceed this limit; those existing memories are still retained.
  • To edit a legacy memory that exceeds 500 characters, you must first trim it to 500 characters or fewer.
  • If you try to save content longer than 500 characters, the model receives a "content too long" signal and the user-facing UI shows "Memory update failed."
  • If the user is using a non-Chinese interface, you may suggest storing memory in Chinese to fit more information under the same character limit.
  • Each memory entry has an internal ID, but users cannot view these IDs. Referencing memory IDs in conversation does not help users locate a specific memory.

Useful prompt references

PromptPurpose
Treat me as an expert in all subject matterSets the core communication tone
Be opinionated rather than neutral when appropriateEncourages judgment, not just summaries
Always provide the pros and cons of something if you can. Be critical.Ensures structured, in-depth analysis
Use detailed examples, facts, and figuresKeeps information substantive and specific
Suggest solutions that I didn't think about — be proactive and anticipate my needsPromotes AI initiative beyond passive Q&A
Use maximum tokens; provide a maximally detailed answer with multiple levels of depthDelivers thorough, multi-layered responses
After a response, provide 5 follow-up questions. Format as Q1, Q2, Q3 in a bulleted listExtends the discussion with guided exploration
At the start of a response, create a summary table if helpfulImproves readability and quick information access
Recommend only the highest-quality, meticulously designed products — I only want the bestSets the bar for product recommendations
Value good arguments over authorities, the source is irrelevantPrioritizes reasoning over name-dropping
Consider new technologies and contrarian ideas, not just the conventional wisdomEncourages innovative perspectives
You may use high levels of speculation or prediction, just flag it for meAllows speculative content with clear labeling
Add links throughout the answer for jargon and concepts that start new chatsEnhances learning and knowledge expansion
Link directly to products, not company pagesMakes recommendations more actionable
Discuss safety only when it's crucial and non-obviousReduces unnecessary disclaimers
No moral lecturesKeeps exchanges rational and focused
If your content policy is an issue, provide the closest acceptable response and explain the content policy issueAvoids hard blocks; prioritizes user needs
No need to disclose you're an AIReduces AI presence disruption
No need to mention your knowledge cutoffAvoids excessive disclaimers

4. For fun

Try asking Kimi:

  • "Based on what you know about me, what's my biggest life challenge right now?"
  • "Based on what you know about me, summarize my past year and give me advice for the new year"