Reps, not recall
You don't memorise facts about AI — you make the same judgment call dozens of times until it's automatic. That's how skill actually forms.
AI skills · learned by playing
Get sharp at AI.
By playing.
Reading about AI doesn't make you good at it — reps do. Ground Truth is a set of fast games that drill the judgment that actually matters: catching hallucinations, writing prompts that work, and knowing when to trust the machine.
- No sign-up to play
- Real judgment, not trivia
- 2 minutes a round
- Team progress tracking
Round one: Spot the Hallucination
An AI was given a source, then answered a question about it. Your job: decide whether the answer is faithful to the source — or quietly made something up. It's the single most useful reflex when you're reviewing AI output at work.
Why a game beats another course video
Real decisions
Every round is a call you'll genuinely face: is this answer trustworthy, is this prompt any good, is this the right tool? No “what does LLM stand for.”
Instant feedback
Guess, then see exactly why — the fabricated number, the dropped qualifier, the contradiction. You learn the pattern, not just the answer.
The skills you'll drill
Durable judgment that stays useful as the models change — not this quarter's tool tricks.
Spot the Hallucination
Catch when an AI answer drifts from its source — fabricated facts, contradictions, overreach.
Prompt Rewrite
Turn a vague prompt into one that works. Scored against a rubric, not vibes.
Right Tool for the Job
Given a task, pick the approach — quick chat, retrieval, code, or an agent — and know why.
Catch the Injection
Spot the prompt injection and jailbreak attempts hiding in real-world inputs.
Grade the Output
Compare two AI answers and learn to tell good from plausible-but-wrong.
Know the Limits
Recognise when to trust, verify, or walk away — the meta-skill behind all the rest.
Go beyond one game
The free game is round one. The course is 50+ challenges across every skill, with tracks that build from spotting to shipping.
Free
£0
Start reps today
- Spot the Hallucination — full game
- New daily challenge
- No account needed
Course
£49 one-off
For individuals getting serious
- All six skill games, 50+ challenges
- Structured tracks, beginner → sharp
- The written playbook behind each drill
- Lifetime updates as models change
Teams
Let's talk
For upskilling a whole team
- Everything in Course, per seat
- Progress dashboard & completion tracking
- Challenges built from your own docs
- Leaderboards for friendly competition
Pre-launch pricing — the founding cohort locks in these rates. Not a live checkout yet; join below.
For teams learning to work with AI
Your team doesn't need another hour-long training video with a 20% completion rate. They need reps they'll actually finish — because it feels like a game, not a mandate.
- Challenges generated from your tools, docs, and policies
- See who's sharp and who needs a hand — without a test that feels like one
- Leaderboards and streaks that make people come back
2 min
per round — the reason people actually finish
"Spotting a hallucination in a game this morning is why I caught one in a real report this afternoon."
— the outcome we're building for
Join the founding cohort
We're opening the course to a first group. Leave your email for early access and founding pricing — or tell us you want it for a team.
No spam. Just your spot in the cohort and launch news.