Sometimes the AI is confident about a single match. Sometimes it isn't sure and shows 2–5 candidate sets. The candidates are ranked by confidence, but the top result isn't always correct — particularly for sets with multiple visual variants.
How to pick
1. Check the year
If your set came in a box that was clearly modern packaging (last 5 years), candidates from the early 2000s are unlikely. If your set has yellowing on white bricks (a sign of age), candidates from the last 2 years are unlikely.
2. Check the piece count
If you have a rough sense of the set's size, candidates with very different piece counts (e.g. 200 vs 2,000) are easy to rule out.
3. Check distinctive details on the photos
Click each candidate's thumbnail to view the full set page. Compare specific details:
- Minifigure print on the torso
- Specific decorative pieces (printed tiles, signs)
- Vehicle decals or stickers
- Overall colour scheme
Often one or two specific details immediately rule a candidate in or out.
4. Check the LEGO theme
If you know the theme (Star Wars, Technic, City), candidates from other themes are wrong even if the visual structure looks similar.
Common confusion patterns
- Multiple Millennium Falcons. LEGO has produced ~7 distinct Falcon sets across UCS, midi-scale, and minifigure-scale. They look similar in photos but have very different piece counts (300 to 7,541). Use scale + year to distinguish.
- Re-released sets. LEGO occasionally re-releases the same model years apart with minor updates. The visual difference can be small. Use the year to pick.
- Star Wars vehicle variants. Same ship, different waves. The minifigures included usually distinguish them.
- City service vehicles. Multiple police trucks, fire engines released across years. Compare details.
If none of them match
If none of the candidates feels right, the AI may simply not have a confident match. Options:
- Retake the photo from a different angle with better lighting.
- Photograph the most distinctive section (printed parts, minifigures, unusual pieces) close up.
- Post on the community page for human ID help.