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Run: 2026-05-19-01KS0V6DP913FG9TP90Y377HGT
Run Details
Model:
Gemini 3.5 Flash (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
10.9s
Cost:
$0.023547
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 heavy rain beat relentlessly against the tall glass windows of Blackwood Manor as the dark grandfather clock struck midnight. Lord Sebastian lay perfectly still upon the Persian rug in his study, a silver letter opener protruding from his chest. A dark circle of expensive red wine spilled from his fallen glass, slowly soaking into the beautifully woven wool fibers. Lady Eleanor stood frozen in the open doorway, her gloved hands trembling violently as she stared at the tragic scene. The embers in the fireplace cast long shadows across the room, obscuring the silent figure who watched from the balcony. She opened her mouth to scream, but a cold leather glove suddenly gripped her shoulder, ensuring her silence remained absolute.
created_at
"2026-05-19T19:25:24.602Z"
5/19/2026, 7:25:24 PM
model
"google/gemini-3.5-flash-20260519"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1621
moderation_latency
(null)
generation_time
10789
tokens_prompt
46
tokens_completion
821
native_tokens_prompt
38
native_tokens_completion
2610
native_tokens_completion_images
0
native_tokens_reasoning
2475
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
0.023547
router
(null)
provider_responses
0
endpoint_id
"bd50061c-e1d8-469e-96b1-d322e77378f8"
id
"JLkMaomCLqWM_PUPsoXpwAM"
is_byok
false
latency
1620
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-1779218724-KhBYsrL6KCnd2b7WsSDo"
session_id
(null)
api_type
"completions"
id
"gen-1779218724-SwknzDyMcO2IgcTDXheD"
upstream_id
"JLkMaomCLqWM_PUPsoXpwAM"
total_cost
0.023547
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