HappyAI sits inside Bittensor’s ecosystem as Subnet 103, a network specifically designed for supportive, empathetic conversational AI. It powers Avocado, the mental-health companion app on iOS and Android.
Avocado feels simple: you open it, journal, track moods, or talk through whatever is on your mind. Underneath, every reply is the result of a decentralised competition between independent models rather than a single private API.
How Subnet 103 Works
Miners host models that are capable of emotional nuance. Validators score the responses and push emissions to the most helpful. This creates a feedback loop where supportive dialogues are constantly rewarded.
$HAI, the project’s secondary token on the Base chain, provides HappyAI with its own economy. It replaced the older $SMILE token through a Base-chain bridge at 10,000:1, and the team’s allocation was placed on a four-year vesting schedule to support long-term development. That migration turned HappyAI into a full subnet economy rather than a simple app project.
Avocado uses Subnet 103 for its inference backend. Instead of calling out to closed systems like OpenAI, every message makes its way to validators, which route the prompt, gather candidate responses, score them, and return the highest-quality output. The user only sees a response that has already passed through empathy and clarity filters.
What Avocado Actually Is
From the outside, Avocado feels like any other wellness app of today: clean UI, soft visuals, journaling tools, breathing guides, and mood tracking. The important part is in how Avocado handles intelligence: messages are encrypted locally, only their essential content is sent, and the subnet returns the chosen reply in real time.
The architecture works in three layers:
- The application that handles interaction and comfort.
- The subnet that supplies intelligence and scoring
- The token layer that controls staking and the flow of rewards.
The Team and Its Direction
This project grew out of the earlier $SMILE token effort led by “Batster.” Over time, it shifted to a mental health-focused build. The team partnered with Graph-it UK for backend modeling, and keeps most identities pseudonymous. The presence of a vesting schedule, app releases, and a clearly managed subnet points to a small but organized group able to ship consistently.
Subnet 103 now has to earn its place block by block.
Timing is everything, and subnet 103 is hitting its stride with:
- An all-time-high texting and voice companion usage
- Major feature updates: including calming audio, soundscapes, guided meditations, expert chat mode, and affirmations
- A reworked onboarding system
- A female Avocado avatar and seasonal modes
- New animations Smoother interactions
- 3D Companion migrating to Android, doubling reach
- A December user-generated content campaign
- And the most significant milestone: Avocado is now live in the iOS App Store after many months of being delayed in moderation.
Why HappyAI Matters
People often need someone to talk to, at those moments when no one is around. Avocado gives them a private channel that responds with patience rather than judgment. Meanwhile, Dynamic TAO rewards only those subnets that people actually value. And provided HappyAI keeps supplying the type of conversations that help people sleep better, calm down, or somehow put their day into perspective, the market will reinforce it.
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