Run: 2026-09-02-01M1HGH9SRTBHD38G8AZD9ZN90

Run Details

Duration:
8.5s
Cost:
$0.011687
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
Freezing rain hammered relentlessly against the tall windows while the heavy front door creaked open into the shadowy entrance hall. Detective Miller stepped inside, shaking cold water from his brimmed hat as silence settled thickly across the vast marble floor. A sharp metallic stench mingled with stale cigar smoke, guiding his cautious steps toward the partially open library door ahead. Lord Harrington sat completely motionless behind his mahogany desk, an ornate silver dagger buried deep within his crimson velvet waistcoat. A shattered crystal glass lay beside him, and a chilling message was freshly scrawled across the wallpaper in red ink.
created_at"2026-09-02T16:51:46.625Z" 9/2/2026, 4:51:46 PM
model"google/gemini-3.8-flash-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1562
moderation_latency(null)
generation_time8450
tokens_prompt46
tokens_completion834
native_tokens_prompt38
native_tokens_completion3109
native_tokens_completion_images0
native_tokens_reasoning2995
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"
usage0.01168725
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788367906-Jt7vJI2FxnB8ACgrH1EN"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788367906-v56PuD9hjtFiVYWAUtyC"
upstream_id"IlSYasruKvHg_uMPkqKe-Qo"
provider_responses
0
endpoint_id"d376f781-516d-42f9-936d-46f19abca6cc"
id"IlSYasruKvHg_uMPkqKe-Qo"
is_byokfalse
latency1559
model_permaslug"google/gemini-3.8-flash-20260902"
provider_name"Google AI Studio"
status200
total_cost0.01168725
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
sentences5
wordCounts
020
120
220
320
420