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Run: 2026-11-11-01M75N7D7P9PP5DCRPWPH82Y8Y
Run Details
Model:
Gemini 4 Carbon (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
28.8s
Cost:
$0.019256
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Heavy rain battered the tall gothic windows while Detective Miller carefully examined the lifeless body sprawled across the Persian rug. Lord Blackwood still clutched a shattered crystal glass, though not a single drop of red wine stained the expensive carpet. Instead, a faint scent of bitter almonds lingered near his pale lips, suggesting someone had poisoned his final evening drink. The heavy oak doors had been bolted firmly from the inside, leaving no obvious escape route for a clever killer. Miller stood up slowly, suddenly noticing fresh muddy footprints leading directly toward the massive mahogany bookcase beside the cold fireplace. Tonight, all six dinner guests remained trapped downstairs, and one of those smiling aristocrats was hiding a very deadly secret.
created_at
"2026-11-11T15:57:03.107Z"
11/11/2026, 3:57:03 PM
model
"google/gemini-4-carbon-20261110"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
8418
moderation_latency
(null)
generation_time
28716
tokens_prompt
46
tokens_completion
657
native_tokens_prompt
68
native_tokens_completion
1912
native_tokens_completion_images
0
native_tokens_reasoning
1772
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"STOP"
service_tier
"default"
usage
0.019256
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.22.2; linux; x64))"
http_referer
(null)
request_id
"req-1794412623-AxFZnwVQj3oEslN6fd8G"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1794412623-NNeqWOc5HDYQVsXoMUIR"
upstream_id
"T5D0aunZEZvh0_gPseG-8QQ"
provider_responses
0
endpoint_id
"f0c9681d-e99b-4bcb-8031-752429da222d"
id
"T5D0aunZEZvh0_gPseG-8QQ"
is_byok
false
latency
8405
model_permaslug
"google/gemini-4-carbon-20261110"
provider_name
"Google AI Studio"
status
200
total_cost
0.019256
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
6
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20