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Prompt: Missing annotation in image

22 out of 51 models answer this prompt correctly.
Prompt: How many annotations are missing in the image? Return only a number.
Answer: 1
Submitted by: Roboflow
Missing annotation in image

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How models perform on this prompt

ChatGPT-4o (Medium Reasoning)

Model answer: { "answer": "1" }

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Claude 3.5 Haiku
Claude 4 Opus

Model answer: To count the missing annotations, I need to identify how many cans are in the image and how many have annotation boxes. I can see 6 aluminum cans in a row on what appears to be a production line or conveyor system. Looking at the yellow annotation boxes, I can count 5 boxes overlaid on the cans. Since there are 6 cans total and 5 annotation boxes, there is 1 annotation missing. 1

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Claude 4 Sonnet

Model answer: I can see 5 yellow bounding box annotations in the image, and there are 6 cans total visible on the conveyor belt. Therefore, 1 annotation is missing. 1

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Cosmos Reason2 8B

Model answer: {"answer": "1"}

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GPT-4.1

Model answer: {"answer": "1"}

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GPT-4.1 Mini

Model answer: {"answer": "1"}

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GPT-5 Mini

Model answer: {"answer": "1"}

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GPT-5.4

Model answer: {"answer":"1"}

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Gemini 2.0 Flash

Model answer: {"answer": "1"}

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Gemini 2.5 Flash Lite

Model answer: {"answer": "1"}

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Gemini 3 Flash

Model answer: {"answer": "1"}

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Gemini 3.1 Pro

Model answer: {"answer": "1"}

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Gemini 3.1 Pro (Tools)

Model answer: {"answer": "1"}

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Grok 4

Model answer: {"answer": "1"}

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Kimi k2.5

Model answer: {"answer": "1"}

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Mistral Medium 3
OpenAI O1

Model answer: {"answer": "1"}

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OpenAI O4 Mini (Medium Reasoning)

Model answer: {"answer": "1"}

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Qwen 3.5 27B

Model answer: { "answer": "1" }

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Qwen 3.5 35B (A3B)
SmolVLM2 2.2B
Arcee.ai Spotlight
Claude 3.7 Sonnet

Model answer: The image shows a row of aluminum beverage cans on what appears to be a production or packaging line. There are 5 yellow rectangular annotation boxes highlighting the cans. Based on what's visible in the image, there don't appear to be any missing annotations - all cans visible in the frame are highlighted with the yellow rectangles. The answer is 0.

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Claude 4.1 Opus

Model answer: Looking at the image, I can see 5 aluminum cans on what appears to be a production or packaging line, and each can has a yellow bounding box annotation around it. Since all visible cans appear to be annotated, the number of missing annotations is: 0

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Claude 4.6 Opus

Model answer: {"answer": "2"}

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Cohere Aya Vision 32B
Cohere Aya Vision 8B

Model answer: There are 6 annotations missing in the image.

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Cosmos Reason2 2B

Model answer: {"answer": "4"}

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GPT-4.1 Nano

Model answer: {"answer": "0"}

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GPT-5 Nano

Model answer: {"answer": "0"}

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Gemini 2.0 Flash Lite

Model answer: {"answer": "0"}

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Gemini 2.5 Flash

Model answer: {"answer": "3"}

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Gemini 2.5 Pro

Model answer: {"answer": "2"}

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Gemini 3 Flash (Tools)

Model answer: {"answer": "2"}

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Gemma 3 27b
Gemma 3 4B
Grok 4.1 Fast

Model answer: {"answer": "3"}

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Llama 4 Maverick 17B
Llama 4 Scout 17B
Mistral Small 3.1 24B

Model answer: There are 7 cans in the image and 4 are annotated therefore, annotations are missing for 3. 3

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Molmo2 8B

Model answer: {"answer": 0}

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Phi 4 Multimodal
Qwen 2.5 VL 7B
Qwen 3.5 0.8B

Model answer: Looking at the image, there are 5 yellow bounding boxes drawn around the aluminum beverage cans on the conveyor belt. The request is to find how many annotations are missing — but since the entire set of 5 boxes is present and properly placed on the cans, no annotation is missing from this particular image instance. The instruction asks for only a number in JSON format if applicable. Since all annotations are present (in fact, they’re full), the count of missing annotations would be zero. {"answer": "0"}

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Qwen 3.5 122B (A10B)

Model answer: {"answer": "0"}

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Qwen 3.5 2B

Model answer: There are 5 cans visible in the image, each with a yellow bounding box (annotation). Let’s count the yellow boxes: 1. First box on far left — covers one can. 2. Second box overlaps first and second can — but is still a separate annotation. 3. Third box overlaps second and third can — another annotation. 4. Fourth box covers third and fourth cans — yet another annotation. 5. Fifth box covers fourth and fifth cans — the rightmost annotation. Wait — actually, let’s look again carefully: The image shows **5 cans**, but the yellow boxes don’t seem to cover all of them. - Leftmost can → covered by box #1 - Second can from left → partially covered by boxes #2 and #3? Actually, looking closely: Looking at the actual yellow rectangles: 1. Far left rectangle: covers first can only. 2. Next rectangle to its right: overlaps first two cans. 3. Third rectangle: overlaps second and third cans. 4. Fourth rectangle: overlaps third and fourth cans. 5. Fifth rectangle: covers fourth and fifth cans. But wait — there are **five cans** total, and only **five yellow boxes**? That would mean no annotation is missing? But the question asks “how many annotations are missing”. Wait — perhaps I miscounted. Actually, let's re-express: Cans from left to right: Can 1 → covered by Box A Can 2 → partially covered by Boxes B and C? But actually, looking at the image, it appears that each yellow box corresponds to one or more cans. But the question is: “How many annotations are missing” — meaning how many bounding boxes do we have for fewer than n cans? In this case, if there are 5 cans and only 4 boxes? Let me recount the yellow boxes in the image. Looking again: - Box 1: leftmost, tall rectangle covering can 1 and part of can 2? - Box 2: to its right, shorter, covering can 2? - Box 3: next, covering can 3? - Box 4: next, covering can 4 and 5? Wait — actually, upon closer inspection of the image (as provided), I see **5 yellow boxes**, each outlining a segment of cans. But wait — perhaps they are not all unique? Or maybe one box is redundant? Alternatively, maybe there are 5 cans but only 4 annotations? That would mean 1 missing. Wait — let me count the cans again visually: From left to right: 1. Can with label “950” partially visible → under second yellow box? 2. Next can behind it? Hard to tell. Actually, looking at the image structure: There are clearly 5 distinct aluminum beverage cans in a row. Each has water droplets and reflections. The yellow boxes: - Box 1 (leftmost): vertical rectangle covering the first can (from viewer’s perspective) — actually, it spans from left edge to just before second box starts. - Box 2: overlaps with first box on the right side? Or is it adjacent? It seems like overlapping boxes. Actually, in the image, the yellow boxes are drawn such that they may overlap, but each is an annotation (bounding box) for one or more cans. But the key is: how many **distinct** annotations (i.e., unique bounding boxes) are there? If we count the number of separate yellow rectangles: Looking carefully: - Rectangle 1: leftmost - Rectangle 2: next to it, slightly overlapping the right side of rect 1 - Rectangle 3: next, overlapping rect 2 and part of can 3 - Rectangle 4: next, overlapping rect 3 and part of can 4 - Rectangle 5: rightmost That’s 5 boxes. And there are 5 cans? Let me verify the number of cans. Counting the tops of the cans: Yes — 5 tops are visible: one at far left, two in middle cluster, and two on right side. Wait no: Actually, looking again: From left to right: Can 1: top edge visible under first box Can 2: between boxes? Actually, there is a second can that is partially hidden — you can see its top peeking through the gap between boxes? This is ambiguous. But let’s assume standard interpretation: each yellow bounding box represents an annotation for one or more objects. The question is: how many annotations (bounding boxes) are missing compared to having one per object? In this case, if there are 5 cans and only 4 bounding boxes — then 1 is missing. But in the image, I count 5 yellow rectangles. Wait — perhaps the fifth box is redundant or covers two cans but is still counted as one annotation. Yes — each rectangle is one annotation, regardless of how many objects it contains. So: 5 annotations, 5 objects → no missing annotations? But that can’t be, because typically some annotations cover multiple objects without being merged. But the question is “how many annotations are missing” — implying a discrepancy. Perhaps I miscounted the boxes. Let me try a different approach: look at the image description or think logically. Actually, in the given image, there are **5 yellow bounding boxes**, and there are **5 cans** that they are supposed to annotate. But wait — the far-left box and the second-from-left box may be overlapping, but still, each is an annotation for one object (even if it includes adjacent objects). But in this case, since every box seems to cover at least one can fully or partially, and there are 5 boxes and 5 cans — perhaps all are covered. But let's count the cans again from the image: - First can: visible under first box - Second can: partially visible between first and second box? Actually, you can see the rim of a second can peeking out behind the first two boxes. - Third can: behind third box - Fourth can: behind fourth box - Fifth can: rightmost Yes — 5 cans. Boxes: 1. Covers can 1 and part of can 2? Or can 1 only? Actually, looking at the position: The first yellow rectangle (leftmost) extends from the far left to about mid-position — it covers both the first can and part of the second can? No, that would be unusual. Perhaps each box is intended for one can, but drawn slightly wider. Given the ambiguity, let's look for a standard interpretation. Another idea: perhaps the "annotations" refer to semantic objects, like "cans", and we need to see how many bounding boxes are provided. In this image, there are 5 yellow rectangles, so 5 annotations. Number of cans is 5, so all are covered. So no missing annotations? But that seems odd for a question asking "how many are missing". Unless... perhaps one box is missing? Let me count again carefully from the image. I will assume that there are 5 yellow boxes, and 5 cans, so answer is 0. But let's double-check with a different strategy. Suppose we list the cans: 1. Can A (leftmost) 2. Can B (second from left) 3. Can C (third from left) 4. Can D (fourth from left) 5. Can E (rightmost) Now, which boxes cover which? - Box 1: covers Can A and maybe part of Can B — but it's labeled as one annotation. - Box 2: covers Can B and part of Can C — another annotation. - Box 3: covers Can C and part of Can D — third annotation. - Box 4: covers Can D and Can E — fourth annotation. Can B is only partially covered by Box 1? Or does Box 2 also cover it? Actually, looking at the image, there is a small portion of a can that is not fully contained within any box — specifically, the second from left might be partially uncovered. Yes! In the middle, between the first two yellow boxes on the right side, there is a thin vertical strip that does not have a yellow box covering it — wait, no, each box has thickness, but if a can extends beyond the width of its box, then that would be missing. Let's estimate: Each box is approximately the same height as the can. For can B (second from left), it might extend slightly beyond the width of its associated box. For example: - Can B should have an annotation, but its top is partially covered by Box 1 and bottom by Box 2 — perhaps there is no single box for it? But that doesn't make sense. I think I found the mistake. Upon closer inspection of the image (as described in many similar problems), there are **5 cans**, but only **4 yellow bounding boxes**. Let me count the rectangles in the image: 1. Leftmost rectangle 2. Second rectangle to its right — starts after first, so not fully aligned 3. Third rectangle 4. Fourth rectangle 5. Fifth rectangle — wait, that's 5. Perhaps one of them is overlapping and not counted as additional? No, each is a separate box. Another possibility: the far-right can is not covered by any box, but there are 5 boxes for 5 cans — still no issue. I recall that in some versions of this image, there are 4 bounding boxes for 5 cans, meaning one annotation covers two cans, or vice versa. Let's think differently: the question is "how many annotations are missing", which means how many bounding boxes are fewer than the number of objects. In this case, if there are 5 objects and 4 bounding boxes, then 1 is missing. If there are 5 objects and 5 bounding boxes, then 0 are missing. From visual counting: - Can 1: covered by Box 1 - Can 2: partially covered — but its full height may be within Boxes 1 and 2 combined? No, each box is a single rectangle. Unless... Box 1 covers can 1 only, Box 2 covers can 2 only, etc., but the drawing is such that boxes overlap in position, not content. I think I need to accept that there are 5 cans and 4 annotations, with one annotation covering two cans. Upon re-examining the image description: "five cans" and "multiple yellow boxes", and in many cases, for 5 items, if there are 4 boxes, then 1 is missing. Let me assume that. To resolve this, let's count the visible can tops with bounding boxes: - Box 1 covers one can completely - Box 2 covers another can completely - Box 3 covers another can completely - Box 4 covers two cans together (e.g., third and fourth) Then that would be 4 boxes for at least 4 cans, but there is a fifth can on the right that is not covered by any box? But in the image, there are 5 cans total. Perhaps Box 4 covers three cans, etc. I think I found a better way: let's look at the image provided in the query — but since I can't see it, I must rely on standard interpretation. In most such images, for 5 cans with 5 bounding boxes, all are present, so answer is 0. But the question implies there might be missing ones. Another idea: perhaps "annotations" refers to semantic annotations like "can", and we need to count how many "cans" are annotated versus number of actual cans. In this case, if each bounding box corresponds to one "annotated instance", then 5 boxes for 5 cans — all good. But let's consider the possibility that there are only 4 cans. Count the tops: from left to right: 1. First can 2. Second can (partially visible) 3. Third can 4. Fourth can 5. Fifth can — yes, 5. Perhaps the box at the far right is missing coverage for the fifth can, but there are 5 boxes. I think I have to conclude that there are 5 bounding boxes and 5 cans, so no annotations are missing. So answer is 0. But let's try one more time with a different perspective. Suppose we number the yellow boxes from left to right: Box A, B, C, D, E — 5 boxes. Cans covered: - Box A: can 1 - Box B: can 2 (fully) - Box C: can 3 (fully) - Box D: can 4 and 5 - Box E: can 6? No. If each box covers at least one can, then 5 boxes cover at least 5 cans — but may cover more. Number of distinct cans is 5, number of annotations (boxes) is 5, so all are covered. Therefore, number of missing annotations = 0. So I'll go with that. {"answer": "0"}

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Qwen 3.5 4B

Model answer: { "answer": "0" }

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Qwen 3.5 9B

Model answer: {"answer": "0"}

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Qwen 3.5 Plus
Reka Edge

Model answer: { "answer": "1" } `

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