Run: 2026-09-02-01M1HHW4R9GD8NJQEVBV4WWJPP

Run Details

Duration:
8.7s
Cost:
$0.008368
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Cold rain lashed violently against the blackened library window panes. Lord Blackwood slumped forward across his massive mahogany writing desk. A silver letter opener pierced through his velvet dressing gown. Dark red blood mixed slowly with spilled black fountain ink. The grandfather clock chimed midnight with deep and ominous resonance. Inspector Vance stepped quietly into the room holding his lantern. Bitter almond fumes lingered faintly in the chilled autumn air. The detective reached down to touch a cold limp wrist. The heavy oak door had remained locked from the inside. Somebody sitting within this quiet house was truly a killer.
created_at"2026-09-02T17:15:10.496Z" 9/2/2026, 5:15:10 PM
model"google/gemini-3.8-flash-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2859
moderation_latency(null)
generation_time8620
tokens_prompt46
tokens_completion719
native_tokens_prompt38
native_tokens_completion2224
native_tokens_completion_images0
native_tokens_reasoning2112
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"
usage0.0083685
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788369310-1g0BQ6TT464QTGNIHUYE"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788369310-20h5Hc8LYAlNPpYS2ULW"
upstream_id"nlmYat_aIvLHjMcPjqXc-QU"
provider_responses
0
endpoint_id"d376f781-516d-42f9-936d-46f19abca6cc"
id"nlmYat_aIvLHjMcPjqXc-QU"
is_byokfalse
latency2851
model_permaslug"google/gemini-3.8-flash-20260902"
provider_name"Google AI Studio"
status200
total_cost0.0083685
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910