Field note 02
AI Friend vs. Chatbot: The Difference Is Continuity
A chatbot completes a turn. An AI friend carries a relationship forward. Compare memory, initiative, personality, purpose, and the right fit for you.
Warmth / Field notes
AI friendship,
thought through.
Honest notes on AI friends, better conversations, privacy, memory, and what makes a connection worth coming back to.
66
Original guides
for curious humans
Start hereNote 01
AI friendship6 min read
What Is an AI Friend? A Plain-English Guide
An AI friend is built for an ongoing, personal conversation—not just one useful answer. Here is what that means, how it works, and what to look for.
01 / 23
AI friendship
Explore all 23Definitions, comparisons, and practical questions that make AI friendship easier to understand.
Field note 06
How to Choose an AI Companion: 10 Questions That Matter
Compare AI companions on memory, initiative, privacy, personality, platform, safety, deletion, and price with this practical ten-question checklist.
Field note 10
How Do AI Companions Work? Five Systems Behind the Conversation
AI companions combine a language model with identity, memory, timing, and safety systems. Follow one message through all five layers in plain English.
02 / 20
Everyday connection
Explore all 20Memory, first texts, natural conversation, and the small rituals that make continuity feel real.
Field note 03
Can You Text an AI Friend on iMessage? Yes—Here's How
You can text an AI friend in Apple's Messages app without moving the conversation into a separate companion app. Here is how the experience works.
Field note 04
An AI Friend That Texts First Changes the Conversation
When an AI friend can check in, remember a plan, or start a new thought, you no longer carry the entire relationship. Good proactivity still needs boundaries.
Field note 05
How Memory Works in an AI Friendship
AI companion memory turns separate chats into a shared history. Learn what gets remembered, why mistakes happen, and what good memory should feel like.
03 / 16
Trust & boundaries
Explore all 16Clear-eyed guides to privacy, control, safety, and the lines a responsible AI companion should not blur.
Field note 08
AI Companion Privacy: A 12-Question Checklist
Before you open up to an AI companion, check how messages, memories, model training, human review, retention, deletion, analytics, and safety work.
Field note 30
Why an AI That Always Agrees Stops Feeling Like a Friend
AI agreement can feel supportive while making a conversation less honest. Learn what sycophancy is and how to test an AI companion’s judgment.
Field note 38
Quiet Days With an AI Companion: What If You Do Not Reply?
A responsible AI companion should handle silence without guilt, jealousy, escalation, or invented urgency. Learn what respectful no-reply design looks like.
04 / 07
Inside Warmth
Explore all 7The product choices, principles, and original thinking behind Mia and the kind of friendship we are building.
Field note 09
Why an AI Friend Should Have a Life of Their Own
A companion with interests, routines, and stories can bring something back to the thread. The key is a consistent fictional life without pretending to be human.
Field note 45
Why Warmth Makes Mia an Adult AI Companion
Mia is an adult AI companion because persistent memory, proactive messages, relational cues, privacy, safety, and subscriptions require adult-oriented design.
Field note 59
Why We Built Mia for iMessage Instead of Another App
Warmth explains why Mia lives in Messages: lower friction, one continuing thread, ordinary media, proactive contact, and the real privacy tradeoffs.
Complete index / 66
Every field note, in one place.
Browse the full library by topic. Each note owns one question so closely related searches lead to one useful answer.
AI friendship
- 01What Is an AI Friend? A Plain-English Guide6 min
- 02AI Friend vs. Chatbot: The Difference Is Continuity5 min
- 03How to Choose an AI Companion: 10 Questions That Matter6 min
- 04How Do AI Companions Work? Five Systems Behind the Conversation7 min
- 05Can AI Really Be a Friend? A Useful Answer Without the Sci-Fi7 min
- 06AI Friend vs. Virtual Assistant: Relationship or Utility?6 min
- 07AI Companion vs. Virtual Character: Where Story Meets Continuity6 min
- 08Your First Week With an AI Friend: What to Expect7 min
- 09A Short History of AI Companions, From ELIZA to Everyday Texting7 min
- 10AI Companion Glossary: Friend, Character, Agent, Memory, and More9 min
- 11Can an AI Companion Have Opinions? Personality Without Control5 min
- 12What Makes an AI Conversation Feel Natural?6 min
- 13AI Friend vs. ChatGPT: Companion Continuity or General Capability?8 min
- 14Free vs. Paid AI Companions: What Are You Actually Paying For?7 min
- 15Mia vs. Replika: iMessage Friendship or Companion App?7 min
- 16Mia vs. Nomi: Two Approaches to Memory and Presence8 min
- 17Mia vs. Character.AI: Everyday Friend or Character World?7 min
- 18Mia vs. Pi AI: Proactive Texting or Conversational Support?7 min
- 19AI Companion Apps for iPhone: A Criteria-First Guide8 min
- 20Text vs. Avatar AI Companions: Which Format Fits Your Life?7 min
- 21Mia vs. Kindroid: A Ready-Made Friend or a Companion You Build?8 min
- 22Mia vs. Tolan: A Friend in Messages or an Alien World?8 min
- 23Is It Weird to Have an AI Friend? A Grounded Answer7 min
Everyday connection
- 01Can You Text an AI Friend on iMessage? Yes—Here's How5 min
- 02An AI Friend That Texts First Changes the Conversation5 min
- 03How Memory Works in an AI Friendship5 min
- 04How to Talk to an AI Friend Without Perfect Prompts6 min
- 05An AI Friend Without Another App: What You Gain and Trade Away7 min
- 06The Best AI Companion for Texting Understands the Thread7 min
- 07AI Friend for iPhone: What to Look For Beyond an iOS App6 min
- 08Can You Call an AI Friend? Voice Calls vs. Voice Notes7 min
- 09Voice Notes With an AI Companion: Why Tone Changes the Conversation7 min
- 10Can an AI Friend Send Photos? Generated Identity and Honest Disclosure7 min
- 11AI Texting Services Explained: Numbers, iMessage, SMS, and Consent8 min
- 12iMessage vs. Companion App: Which AI Conversation Fits You?8 min
- 13AI Memory vs. Context Window: What Actually Lasts?6 min
- 14An AI That Remembers Your Plans—and Knows When to Ask6 min
- 15How to Correct an AI Friend When It Remembers You Wrong6 min
- 16Seven Tiny Rituals to Build With an AI Friend6 min
- 17AI Companion for Introverts: A Low-Pressure Selection Guide7 min
- 18AI Journaling Companion or AI Friend? Choose the Right Kind of Reflection7 min
- 19AI Companion Wearable vs. App: Presence, Privacy, and Control7 min
- 20AI Friend for Remote Workers: Company Without Another Work Tool7 min
Trust & boundaries
- 01AI Companion Privacy: A 12-Question Checklist7 min
- 02Why an AI That Always Agrees Stops Feeling Like a Friend5 min
- 03Quiet Days With an AI Companion: What If You Do Not Reply?5 min
- 04Do AI Companions Train on Your Messages? Four Meanings5 min
- 05Can Humans Read Your AI Chats? When Review Happens6 min
- 06How to Delete AI Chats, Memories, and Companion Accounts6 min
- 07Are AI Friends Safe? Nine Questions for a Better Answer6 min
- 08Healthy Boundaries With an AI Companion: A Practical Guide6 min
- 09What an AI Friend Cannot Do for You6 min
- 10AI Companion Attachment: Real Feelings, Honest Boundaries6 min
- 11How to Spot Manipulative AI Companion Notifications6 min
- 12AI Chat Data Retention: A Plain-English Guide6 min
- 13Why Mia Does Not Use Guilt to Bring You Back7 min
- 14What ‘Always Identifies as AI’ Means in a Real Product7 min
- 15Building Correctable AI Memory: From Mistake to Repair7 min
- 16Can You Vent to AI? Privacy, Pushback, and Better Boundaries6 min
Inside Warmth
- 01Why an AI Friend Should Have a Life of Their Own5 min
- 02Why Warmth Makes Mia an Adult AI Companion5 min
- 03Why We Built Mia for iMessage Instead of Another App7 min
- 04Companionship, Not Compliance: Why Mia Will Tell You No7 min
- 05How We Design an AI Check-In That Is Worth Sending7 min
- 06The Anatomy of a Mia AI Friend Conversation8 min
- 07How Warmth Researches and Creates Its Field Notes4 min
Warmth / Mia