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Run: 2026-02-25-01KJ950NW3WC2YVJKP2E9NGS67
Run Details
Model:
Gemini 2.5 Flash (Reasoning)
Test:
Data extraction
Scenario:
What's the correct time?
Duration:
55.3s
Cost:
$0.033369
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
Pass
Matches Regex
(details)
Model input
User/Human
What is the correct time based on the following text? Only return the time in HH:MM format, nothing else. The clock shows 3:45. It's 15 minutes slow. The actual time is a quarter past an hour.
Model response
Messages
Meta
AI
The question requires finding the correct time based on three statements: 1. "The clock shows 3:45." 2. "It's 15 minutes slow." 3. "The actual time is a quarter past an hour." Let's analyze the statements: * **From statements 1 and 2:** If the clock shows 3:45 and it is 15 minutes slow, the actual time would be: 3:45 + 15 minutes = 4:00. * **From statement 3:** "The actual time is a quarter past an hour." This means the minutes part of the actual time must be :15. So, the actual time must be in the format HH:15. Now we have a conflict: From statements 1 & 2, the actual time is 4:00. From statement 3, the actual time is HH:15. These two derived actual times (4:00 and HH:15) cannot simultaneously be true in a direct sense because 00 minutes is not 15 minutes. This is a common setup in logic riddles where information must be reconciled. The interpretation that resolves this is to take the *most definitive* parts of each statement: * The exact minute value comes from the explicit statement about the "actual time": "a quarter past an hour" directly means the minutes are :15. * The hour value comes from the calculation involving the clock and its error: Correcting 3:45 by 15 minutes gives 4:00, implying the hour is 4. Combining these pieces leads to the time 4:15. Let's check if 4:15 is consistent with all statements: * If the actual time is 4:15. (This satisfies "a quarter past an hour"). * If the clock is 15 minutes slow, it should show 4:15 - 15 minutes = 4:00. * However, the text states "The clock shows 3:45." This is where the direct inconsistency lies if we assume all statements are strictly factual about one single, perfectly behaving clock displaying the exact discrepancy. In such riddles, when direct calculation leads to a contradiction, the most explicit statement about the desired answer (in this case, "the actual time is...") often takes precedence for its directly stated component, and other information is used to infer the remaining part. The phrase "The actual time is" sets the stage for the format of the correct answer, and "a quarter past an hour" explicitly sets the minutes. The only hour mentioned is implicitly 4 from correcting 3:45. Therefore, the correct time is 4:15. 4:15
created_at
"2026-02-25T01:01:04.78Z"
2/25/2026, 1:01:04 AM
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1352
moderation_latency
(null)
generation_time
55227
tokens_prompt
50
tokens_completion
4369
native_tokens_prompt
54
native_tokens_completion
13341
native_tokens_completion_images
0
native_tokens_reasoning
12767
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"STOP"
usage
0.0333687
router
(null)
provider_responses
0
endpoint_id
"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byok
false
latency
1351
model_permaslug
"google/gemini-2.5-flash"
provider_name
"Google AI Studio"
status
200
api_type
"completions"
id
"gen-1771981264-G8VcQxs9XcyUJYHHJkyD"
upstream_id
(null)
total_cost
0.0333687
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
Pass
Matches Regex
/\b0?4:15\b/i
n/a