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Run: 2026-05-10-01KR8VMR8QEZBBVN4RRB9TPF6S
Run Details
Model:
Gemini 3.1 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1.2s
Cost:
$0.000148
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 grandfather clock struck twelve times while raindrops hammered against the study window like tiny bullets hitting the velvet curtains. Lord Harrington slumped forward across his mahogany desk, a silver letter cutter protruding deeply from his pale, lifeless neck skin. Lightning flashed brightly, illuminating the empty hallways and casting long, jagged shadows that danced along the cold, dark floorboards tonight. Lady Eleanor stood trembling in the quiet doorway, clutching a single invitation letter that smelled faintly of bitter, crushed almonds.
created_at
"2026-05-10T11:51:27.775Z"
5/10/2026, 11:51:27 AM
model
"google/gemini-3.1-flash-lite-20260507"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
470
moderation_latency
(null)
generation_time
1058
tokens_prompt
46
tokens_completion
139
native_tokens_prompt
38
native_tokens_completion
92
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
0.0001475
router
(null)
provider_responses
0
endpoint_id
"237af107-d2e9-46c7-b146-c74d75980dee"
id
"P3EAaq3UPISsz7IPqqiR8Qk"
is_byok
false
latency
469
model_permaslug
"google/gemini-3.1-flash-lite-20260507"
provider_name
"Google AI Studio"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer
(null)
request_id
"req-1778413887-NH3IJT2TFeCIHQyz7Wam"
session_id
(null)
api_type
"completions"
id
"gen-1778413887-WdPoxtMlPtzNk3KbAmkB"
upstream_id
"P3EAaq3UPISsz7IPqqiR8Qk"
total_cost
0.0001475
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
4
wordCounts
0
20
1
20
2
20
3
20