Run: 2026-05-10-01KR90Z1GFY54WH5VZDYS30C6C

Run Details

Duration:
1.1s
Cost:
$0.000140
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 clock struck midnight as the rain lashed against the cracked window of the library where Lord Harrington lay dead. Silver moonlight illuminated the crimson stain spreading slowly across the expensive Persian rug beneath his rigid and lifeless cold body. A single glass of vintage scotch remained perfectly balanced on the mahogany side table beside his slumped and gray shoulder. No one dared to breathe while the heavy shadow of a killer lingered somewhere deep inside this dark haunted manor.
created_at"2026-05-10T13:24:27.8Z" 5/10/2026, 1:24:27 PM
model"google/gemini-3.1-flash-lite-20260507"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency507
moderation_latency(null)
generation_time1020
tokens_prompt46
tokens_completion127
native_tokens_prompt38
native_tokens_completion87
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"
usage0.00014
router(null)
provider_responses
0
endpoint_id"237af107-d2e9-46c7-b146-c74d75980dee"
id"C4cAasr-POKsqtsPvc-6gAE"
is_byokfalse
latency507
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-1778419467-rDgqXbhsKjpyqzhx2T1U"
session_id(null)
api_type"completions"
id"gen-1778419467-EDrttXowLWWNYAZZrRsj"
upstream_id"C4cAasr-POKsqtsPvc-6gAE"
total_cost0.00014
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