One link to read your fandom, spot the opportunity, de-risk the move with simulated fans, and let 24/7 agents run the work — starting with more fans on your own social. When it’s time to monetize, the b.stage bridge turns it into a real fandom business, globally and instantly.
Fan + Simulation — a fandom modeled in data. And in Korean, paen-sim (팬심 · 心) — a fan’s heart. Emotion and science, one word.
Browse public fandom profiles built from real fan signals, chat with an AI fan who knows the fandom, and find out what kind of fan you are.
Fan-voice themes, top posts and fan types for real fandoms — rebuilt from public signals.
Ask an AI fan persona what the fandom is buzzing about — grounded in real fan data.
Six questions to find your fan archetype — share your result with your friends.
Fansim is built and operated by bemyfriends — the team that has run fandom businesses for 1,200+ artists and IPs, whose fandoms together reach 13M+ fans, over more than 10 years. That hands-on know-how, proprietary data and real campaign cases are distilled into Fansim’s models, so they understand the artist and the fan at the same time.
Point Fansim at another artist or creator in your domain and, in a single click, learn from their fandom — who their fans are, what content lands, and where the business opportunities are. Knowing the channels and fandoms around you, and understanding the fandom you want to build, has never been this fast.
See how another channel’s fandom is composed — segments, affinities, desires and frustrations — modeled the same way as your own.
Spot the content directions that resonate with their fans, so you can learn what works before you ever try it on yours.
Uncover the revenue and partnership angles already proven in an adjacent fandom — one click, no guesswork.
Turn segments into a population of statistically modeled fans, each with demographics, spending, affinity and churn signals.
Run live A/B tests and watch each agent react in real time, with per-segment winners and revenue estimates.
Channel intelligence grounded in real public data — including YouTube — with sentiment, desires and frustrations.
Qualitative, in-character reactions and 1:1 interviews with synthetic fans for the nuance numbers miss.
Record real results and feed them back so predictions sharpen against your fandom over time.
Generate, score and iterate messaging automatically until the winning variant emerges.
Ground every analysis in your own research, reports and brand guidelines via semantic retrieval.
Choose Claude, Gemini, OpenAI or MiniMax — switch engines and model versions from the admin.
Turn segments into a population of statistically modeled fans, each with demographics, spending, affinity and churn signals.
Analysis is the starting point. Fansim turns it into moves — content and business ideas grounded in your fandom, a read on competitor and target IPs, and a faster, evidence-backed path into the market. And when it’s time to monetize, the b.stage partner bridge turns that opportunity into a real fandom business — memberships, commerce, community and D2C — globally and instantly.
Surface concrete content directions and revenue ideas grounded in what your fandom actually responds to.
Analyze any rival or aspirational IP the same way — see how their fandom is built and what’s working for them.
Validate a move on a modeled fandom before you commit, so you reach the market first — with evidence, not guesswork.
Fansim is an MCP server. Connect Claude, Cursor, or any MCP client and pull your fandom’s analyses — and even run simulations — right inside your AI workflow. No copy-paste, no context-switching.
The validation engine — pressure-test an opportunity on a modeled fandom before you commit.
Every candidate is judged by individual agents — not an average.
Copy, subject lines, announcements
Thumbnails, covers, photocards
Tickets, goods, membership tiers
Best release & on-sale windows
Stress-test sensitive moves for backlash
Which win-back offer retains at-risk fans
Ask up to 1,000 virtual fans (agents) anything about your artist’s activities and get ahead of the response before you act — or sit down 1:1 with a single fan for focused, in-character analysis.
Pose a question or plan to up to 1,000 fan agents and read the room — in-character reactions, stance, and a synthesis you can act on.
Chat one-on-one with a single fan persona for deeper, focused insight into the “why” behind the numbers.
Add a fandom and let AI draft 3–5 fan segments with demographic and behavioral distributions.
Sample a synthetic fan population — hundreds of agents that genuinely reflect each segment.
A/B test your candidates, read per-segment results, and launch the winner with confidence.
Fansim continuously checks live public signals across channels and grounds every analysis in what’s happening right now — so recommendations stay in step with the trend, not last month’s snapshot.
The new Standard plan starts at $20/mo with 2,000 monthly tokens and the full feature set. Every member can invite up to 10 people by email or with a personal invite code — when someone you invite subscribes to a paid plan, they get bonus tokens and so do you.
Sign-ups are open — no invite needed. Create a free account in minutes; have an invite code? Enter it at sign-up and you’ll both receive bonus tokens.