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Run: 2026-05-19-01KS0V2P2AMP33KHWWDZN7R64D
Run Details
Model:
Gemini 3.5 Flash (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
10.1s
Cost:
$0.022989
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
Rain lashed fiercely against the heavy leaded windows of Blackwood Manor, washing away the secrets hidden deep within its walls. Inside the locked study, Lord Harrington sat slumped over his mahogany desk, a silver letter opener protruding from his neck. Black ink had mingled with dark crimson blood on the unfinished letter, staining the expensive parchment a truly ghastly shade. Detective Miller stepped quietly into the silent room, his wet trench coat dripping cold rainwater onto the Persian rug below. He immediately noticed that the grandfather clock in the dark corner had stopped ticking at exactly four minutes past midnight. The locked windows suggested an inside job, meaning the desperate killer was definitely still hiding somewhere within this grand house.
created_at
"2026-05-19T19:23:22.064Z"
5/19/2026, 7:23:22 PM
model
"google/gemini-3.5-flash-20260519"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1418
moderation_latency
(null)
generation_time
9975
tokens_prompt
46
tokens_completion
1030
native_tokens_prompt
38
native_tokens_completion
2548
native_tokens_completion_images
0
native_tokens_reasoning
2413
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
0.022989
router
(null)
provider_responses
0
endpoint_id
"bd50061c-e1d8-469e-96b1-d322e77378f8"
id
"qrgMapGNDefC1MkPjaiZmAs"
is_byok
false
latency
1418
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-1779218602-9j4jspkqnx95TEYA04xQ"
session_id
(null)
api_type
"completions"
id
"gen-1779218602-Njy06R3CTMsM8al5ZEvN"
upstream_id
"qrgMapGNDefC1MkPjaiZmAs"
total_cost
0.022989
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