Run: 2026-07-25-01KYCXT0M5HGVCF5QPPG46MXEB

Run Details

Duration:
685ms
Cost:
$0.000171
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
60.65% 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

AI
Rain lashed against the tall stained glass windows while the wealthy guests whispered nervously inside the freezing drawing room. Lord Sterling slumped heavily across his mahogany desk because someone had driven a silver dagger deep into his back. Detective Vance stepped through the heavy oak doors and immediately noticed the bitter scent of bitter almonds lingering nearby.
created_at"2026-07-25T15:20:25.999Z" 7/25/2026, 3:20:25 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency283
moderation_latency(null)
generation_time638
tokens_prompt46
tokens_completion96
native_tokens_prompt38
native_tokens_completion64
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"STOP"
service_tier"default"
usage0.0001714
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"OtRkatzLA_e3_uMP67bJ6Ag"
is_byokfalse
latency283
model_permaslug"google/gemini-3.5-flash-lite-20260721"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784992826-kEGDVHRsNPpDqrbt9wRA"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784992826-DAr8fXInzWud5Qp08BpY"
upstream_id"OtRkatzLA_e3_uMP67bJ6Ag"
total_cost0.0001714
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
60.65% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
019
119
219