Run: 2026-05-10-01KR8VEW78QN8ZSCDR3X3D3GPX

Run Details

Duration:
1.5s
Cost:
$0.000144
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 heavy velvet curtains parted slowly to reveal the silent body sprawled across the ornate rug of the grand library. Rain lashed against the tall windows while the pale moonlight illuminated a single, jagged shard of glass near his hand. No one had heard the muffled scream that surely escaped his lips before the killer vanished into the dark night. I stepped carefully toward the cold corpse, feeling the sudden chill of death clinging to every corner of this room.
created_at"2026-05-10T11:48:15.435Z" 5/10/2026, 11:48:15 AM
model"google/gemini-3.1-flash-lite-20260507"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency560
moderation_latency(null)
generation_time1093
tokens_prompt46
tokens_completion123
native_tokens_prompt38
native_tokens_completion90
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"
usage0.0001445
router(null)
provider_responses
0
endpoint_id"237af107-d2e9-46c7-b146-c74d75980dee"
id"f3AAaoLuLPaGz7IPiNetuAM"
is_byokfalse
latency560
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-1778413695-EeSOLHhtxfQJJcXSckzP"
session_id(null)
api_type"completions"
id"gen-1778413695-rFoIsTEXO5DOlG0xMQuN"
upstream_id"f3AAaoLuLPaGz7IPiNetuAM"
total_cost0.0001445
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
sentences4
wordCounts
020
120
220
320