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Run: 2026-05-19-01KS0TS7BR75ANMNPY05WDP6MX
Run Details
Model:
Gemini 3.5 Flash (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
18.7s
Cost:
$0.044238
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 relentless autumn rain lashed against the cracked windowpanes of Blackwood Manor, washing away the blood on the terrace below. Inside the dimly lit study, Lord Harrington sat perfectly still in his leather armchair, a silver dagger in his chest. A single glass of expensive scotch stood unfinished on the mahogany desk, beside a crumpled note written in red ink. Inspector Vance stepped through the French doors, shaking the water from his heavy wool coat as he surveyed the scene. He noticed that the grandfather clock in the corner had stopped ticking at precisely four minutes past eleven last night. A faint scent of sweet perfume lingered in the room, hinting that the clever killer was someone standing very close.
created_at
"2026-05-19T19:18:12.092Z"
5/19/2026, 7:18:12 PM
model
"google/gemini-3.5-flash-20260519"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1634
moderation_latency
(null)
generation_time
18292
tokens_prompt
46
tokens_completion
2146
native_tokens_prompt
38
native_tokens_completion
4909
native_tokens_completion_images
0
native_tokens_reasoning
4774
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
0.044238
router
(null)
provider_responses
0
endpoint_id
"bd50061c-e1d8-469e-96b1-d322e77378f8"
id
"dLcMapeDEfHgz7IP8O-TkQc"
is_byok
false
latency
1634
model_permaslug
"google/gemini-3.5-flash-20260519"
provider_name
"Google AI Studio"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.15.0; linux; x64))"
http_referer
(null)
request_id
"req-1779218292-eNp11wAGFj5iWVo2or9Y"
session_id
(null)
api_type
"completions"
id
"gen-1779218292-Ea4Pkou8e3wFgqbHRDOL"
upstream_id
"dLcMapeDEfHgz7IP8O-TkQc"
total_cost
0.044238
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
6
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20