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Run: 2026-05-10-01KR90YDT6PQJRN7Q0X9GYKAC9
Run Details
Model:
Gemini 3.1 Flash Lite
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1.3s
Cost:
$0.000194
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
The cold moonlight filtered through the dusty curtains, casting long shadows across the victim lying still upon the velvet rug. A single crimson stain bloomed outward from his chest, marking the silent end of a very long and bitter feud. I knelt beside the body, checking for any lingering pulse, but the man had clearly parted from this world tonight. The heavy scent of metallic blood filled the stagnant air, mingling with the bitter aroma of a fading expensive cigar. Somewhere in the darkened hallway, a floorboard creaked loudly, signaling that the killer had not yet fled the grand manor.
created_at
"2026-05-10T13:24:07.629Z"
5/10/2026, 1:24:07 PM
model
"google/gemini-3.1-flash-lite-20260507"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
534
moderation_latency
(null)
generation_time
1215
tokens_prompt
46
tokens_completion
157
native_tokens_prompt
38
native_tokens_completion
123
native_tokens_completion_images
0
native_tokens_reasoning
0
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
"standard"
usage
0.000194
router
(null)
provider_responses
0
endpoint_id
"237af107-d2e9-46c7-b146-c74d75980dee"
id
"94YAao28MruHz7IP5vL_wAg"
is_byok
false
latency
534
model_permaslug
"google/gemini-3.1-flash-lite-20260507"
provider_name
"Google AI Studio"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer
(null)
request_id
"req-1778419447-wo8Jw5y7ACGw32LVfotr"
session_id
(null)
api_type
"completions"
id
"gen-1778419447-M6bsFlE1xw6DAYQAcgtd"
upstream_id
"94YAao28MruHz7IP5vL_wAg"
total_cost
0.000194
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
20
1
20
2
20
3
20
4
20