Run: 2026-05-10-01KR8Z53GYEP0C5BW3J4K974QE

Run Details

Duration:
1.1s
Cost:
$0.000107
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

AI
The rain hammered against the frosted glass window while the grandfather clock chimed midnight in the silent and dark library. Arthur collapsed onto the velvet rug with a silver letter opener protruding from the center of his cold, pale chest. Smoke drifted slowly from the muzzle of a heavy pistol resting near the door where a mysterious shadow had vanished.
created_at"2026-05-10T12:52:49.318Z" 5/10/2026, 12:52:49 PM
model"google/gemini-3.1-flash-lite-20260507"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency571
moderation_latency(null)
generation_time1019
tokens_prompt46
tokens_completion90
native_tokens_prompt38
native_tokens_completion65
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"standard"
usage0.000107
router(null)
provider_responses
0
endpoint_id"237af107-d2e9-46c7-b146-c74d75980dee"
id"oX8AaofdIsyHz7IP2emCqAs"
is_byokfalse
latency571
model_permaslug"google/gemini-3.1-flash-lite-20260507"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1778417569-mlMJHq2wflkmvJ23pL9o"
session_id(null)
api_type"completions"
id"gen-1778417569-DJhRBgkdVar2Z99p6oWk"
upstream_id"oX8AaofdIsyHz7IP2emCqAs"
total_cost0.000107
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
020
120
220