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Run: 2026-05-19-01KS0V72SR9JHD29S8AAE1YX8Y
Run Details
Model:
Gemini 3.5 Flash (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
17.2s
Cost:
$0.039612
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 against the cold glass windows of old Blackwood Manor while the grandfather clock struck its heavy midnight chime. Lord Harrington sat in his favorite green leather armchair, but his eyes were wide open and completely devoid of life. A single, deep red stain bloomed across his immaculate white shirt, dripping slowly onto the expensive Persian silk rug below. The young maid dropped her silver serving tray, sending a dozen crystal wine glasses shattering across the dark wooden floor. Her terrified scream pierced the quiet night, echoing through the long hallways and bringing the wealthy dinner guests running inside. Now, they were all trapped in the isolated mansion with a ruthless killer hiding behind a mask of innocent surprise.
created_at
"2026-05-19T19:25:46.173Z"
5/19/2026, 7:25:46 PM
model
"google/gemini-3.5-flash-20260519"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1660
moderation_latency
(null)
generation_time
17064
tokens_prompt
46
tokens_completion
1494
native_tokens_prompt
38
native_tokens_completion
4395
native_tokens_completion_images
0
native_tokens_reasoning
4261
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
0.039612
router
(null)
provider_responses
0
endpoint_id
"bd50061c-e1d8-469e-96b1-d322e77378f8"
id
"OrkMasLqE-yOjMcPlq_iOQ"
is_byok
false
latency
1660
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-1779218746-JQqUvPoZIGksvtbTPjUd"
session_id
(null)
api_type
"completions"
id
"gen-1779218746-kIaKn9qFsPVvue1fKY7T"
upstream_id
"OrkMasLqE-yOjMcPlq_iOQ"
total_cost
0.039612
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