Evaluate
How to judge AI clips on MOBA streams
How to judge AI clips on MOBA streams: write fight cards, measure lead-in shortfall, check minimap framing and decide when a gap is only a tie.
To judge AI clips on a MOBA stream, check whether the clip keeps the setup before a teamfight, because the play usually depends on a rotation, ward or cooldown from well before the first ability. This page shows how to measure that lead-in on your own games with fight cards and a stopwatch.
Sections on this page (8)
Why MOBA clips fail differently
MOBA clips fail on timing and framing more than on finding the fight. Reasoning, not a finding: a tool that cuts tightly around excited speech will start clips after the setup, so a viewer sees effects and no cause. The interface adds a second problem. The action sits across a wide map and the screen carries a minimap, abilities and scoreboard, so a vertical crop that suits a talking head can remove what explains the fight.
Vendors document layout options, which are worth checking against this. As of 8 November 2026:
- Twitch’s clips help describes portrait layouts called Stacked, for streams with a facecam and gameplay, and Full, which uses one box.
- Klap’s how-it-works page lists “Split, Gaming, Gaming 2” for gameplay with a facecam.
- Eklipse’s homepage lists “Vertical framing, facecam, and captions” and says its detection is “tuned for each game category”.
- OpusClip’s ClipAnything page says it analyses “each frame through visual, audio, and sentiment cues”. The page does not say how its virality rating is calculated, so treat that as a claim.
None of these says how a layout treats a minimap, so check that yourself.
Write a fight card for each fight
A fight card records what the fight depends on before any tool suggests anything. Pick eight to ten fights across a few games, including at least two that decided a game and two that did not, and note three timestamps:
- Setup: the rotation, ward, cooldown or objective start that makes the fight matter
- Engage: the first ability cast in the fight
- Payoff: the ace, the objective secured or the retreat
Then work out two numbers per fight. Lead-in needed is engage minus setup, capped at 45 seconds so no fight asks for more than a short clip can spare. The cap is a suggestion. Lead-in given is engage minus the clip’s start time. Any gap between them is the shortfall.
Worked example (illustration only, invented timestamps, no real tool):
| Fight | Setup | Engage | Clip starts | Needed | Given | Shortfall |
|---|---|---|---|---|---|---|
| A | 1:42:10 | 1:42:48 | 1:42:40 | 38 s | 8 s | 30 s |
| B | 2:05:30 | 2:05:52 | 2:05:25 | 22 s | 27 s | 0 s |
| C | 0:37:02 | 0:38:12 | 0:38:20 | 45 s (capped) | -8 s | 53 s |
The median shortfall here is 30 seconds. Fight C’s clip opens 8 seconds after the fight began, which fails boundaries however good the rest is.
Run it on a single game
One full game gives a first read, because it holds fights of different importance.
- Pick a game from an ordinary session and write its fight cards.
- Submit only that game if the tool lets you choose a time range, or the whole VOD if credits allow, with default settings.
- For each fight, find the clip containing its payoff, if any, and record its start time.
- Calculate the shortfall per fight.
- Score each clip with tool names hidden, then list twenty game terms that came up and count how many the captions got right.
Scoring anchors
A clip earns 2, 1 or 0 per row. The weights are a starting point.
| Criterion and suggested weight | Good (2) | Acceptable (1) | Fail (0) |
|---|---|---|---|
| Clip boundaries and lead-in, 35% | Opens at or before the setup and closes after the payoff | Opens after the setup but before the engage | Opens after the fight began, or stops before the objective or ace resolves |
| Moment selection, 30% | A fight that swings gold, an objective or the game | A clean kill or skirmish with small impact | Laning with nothing at stake, a recall, the draft or the post-game screen |
| Framing and interface legibility, 25% | Positions of both teams readable, minimap kept or deliberately replaced | Fight readable, minimap lost | Effects only, with nobody’s position readable at phone size |
| Captions and game terms, 10% | Champion, hero and item names correct | One or two names wrong, meaning survives | Names wrong often enough to mislead |
MOBA-specific ways a clip fails
- No lead-in: the clip opens with the fight already under way.
- Objective cut: the clip ends on the kills and loses the dragon, Baron or Roshan the fight was about.
- Unreadable crop: a vertical frame showing effects but no player positions.
- Interface lost or enlarged badly: a crop that drops the minimap or scales the interface until nothing else fits.
- Jargon captions: champion names, items and abilities transcribed wrongly. Caption accuracy on gameplay audio covers counting these.
- Mistimed excitement: a clip built on the streamer reacting to chat during a slow laning phase.
Who rates it changes the answer
Rater knowledge is the main bias. A player fills in missing context without noticing and scores a clip as clear when a newcomer would be lost. A non-player cannot tell a decisive fight from a pointless one. Have a player choose the fights and score moment selection, then ask a non-player whether they can tell who won and why.
Role changes how much you narrate a fight, patches rename or rework abilities, and a one-sided game has fewer fights that matter. Keep one role per comparison and record the patch.
How much data it takes
Eight to ten fights give you a median and a count, and neither is precise. As rules of thumb, treat under 10 seconds of median shortfall difference as a tie, since one trim covers it either way, and treat a difference of fewer than three fights out of ten passing the boundary row as a tie. Confirm on a second game before relying on either. Use the median, not the average, so one long fight cannot pull a small sample.
Using the outcome
Whether you can fix the shortfall matters more than its size.
- Large shortfall, editor can extend backwards: workable if you accept trimming every clip.
- Large shortfall, no way to extend: rule the tool out for MOBA content.
- Good timing, minimap lost: build the layout by hand using the facecam and gameplay vertical layout workflow.
- Game terms keep failing: look for a custom vocabulary setting. If there is none, budget a caption pass per clip.
The long VOD shortlist records what vendors document, and the methodology page covers the shared approach. Other genres are on the guides hub.