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Run: 2026-05-20-01KS25XA8W5VM8F244PWP4PS04
Run Details
Model:
Gemini 3.5 Flash (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1.4s
Cost:
$0.001182
Provider:
Google AI Studio
Evaluation summary
Score
Evaluator
Details Link
92.13%
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 grandfather clock struck midnight, sending a heavy, mournful chime through the dusty corridors of the quiet, darkened countryside manor. Inside the locked study, Sir Reginald sat frozen in his leather armchair, a thin stream of crimson pooling on his collar. Outside the window, sheets of cold rain beat relentlessly against the glass, masking any desperate sounds of a final struggle. Inspector Vance adjusted his dripping trench coat, stepped past the yellow police tape, and stared intently at the gruesome scene. No forced entry was visible on the heavy wooden doors, meaning the cunning killer was still trapped inside the house.
created_at
"2026-05-20T07:51:54.914Z"
5/20/2026, 7:51:54 AM
model
"google/gemini-3.5-flash-20260519"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
704
moderation_latency
(null)
generation_time
1320
tokens_prompt
46
tokens_completion
168
native_tokens_prompt
38
native_tokens_completion
125
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
0.001182
router
(null)
provider_responses
0
endpoint_id
"bd50061c-e1d8-469e-96b1-d322e77378f8"
id
"G2gNapncA5_GjMcP0v7A0Ak"
is_byok
false
latency
704
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-1779263514-BQkmlgAewFeWcKITM6ku"
session_id
(null)
api_type
"completions"
id
"gen-1779263514-ZyW2hnHyskfp36FPKBx9"
upstream_id
"G2gNapncA5_GjMcP0v7A0Ak"
total_cost
0.001182
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
92.13%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
20
1
21
2
20
3
20
4
20