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Run: 2026-07-25-01KYCXF9F1GHQCF3MY30NMSQFB
Run Details
Model:
Gemini 3.6 Flash (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.0s
Cost:
$0.001249
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
88.76%
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
Rain lashed against the tall windows of Blackwood Manor, blurring the dark forest that stretched endlessly into the night. Inside the dimly lit study, Lord Reginald sat motionless in his leather chair, a crimson stain spreading across his shirt. The grandfather clock chimed midnight, its heavy brass pendulum swinging slowly above the silent body resting on the Persian rug. A delicate porcelain teacup lay shattered near his feet, its remaining contents mixing with the fresh pool of dark blood. In his right hand, the dying nobleman gripped a silver pocket watch, its cracked face frozen at precisely eleven fifteen. The heavy oak door creaked open, revealing a shadowed figure holding a dripping umbrella and a pair of mud-stained gloves. Nobody heard the subtle click of the brass lock as the mysterious intruder stepped carefully into the silent room.
created_at
"2026-07-25T15:14:34.601Z"
7/25/2026, 3:14:34 PM
model
"google/gemini-3.6-flash-20260721"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
536
moderation_latency
(null)
generation_time
1890
tokens_prompt
46
tokens_completion
215
native_tokens_prompt
38
native_tokens_completion
159
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
"default"
usage
0.0012495
router
(null)
provider_responses
0
endpoint_id
"5d6d133d-a953-4781-a835-7ee76f4e1388"
id
"2tJkap_NLIaM_uMPtqXCkQk"
is_byok
false
latency
536
model_permaslug
"google/gemini-3.6-flash-20260721"
provider_name
"Google AI Studio"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1784992474-XaD7nDyaR37Xl1XYLrW2"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1784992474-QnD8CAHoT97v3b0xh4n8"
upstream_id
"2tJkap_NLIaM_uMPtqXCkQk"
total_cost
0.0012495
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
88.76%
Matches word count
n/a
neededClean
false
sentences
7
wordCounts
0
19
1
20
2
20
3
20
4
20
5
20
6
19