Run: 2026-07-25-01KYCW53C417TCSQWPT0ZFQ6A4

Run Details

Model:
Gemini 3.6 Flash (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
10.8s
Cost:
$0.020082
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
Rain lashed violently against the tall stained glass windows of Blackwood Manor just as midnight struck on the grandfather clock. Lord Harrington lay motionless upon the expensive Persian rug with an ornate silver dagger buried deep inside his still chest. Detective Inspector Vance stepped carefully around the shattered brandy glass, eyeing the mysterious red wax seal near the dead body. Nobody had entered this locked study since dinner, yet someone had clearly managed to execute a remarkably silent, brutal murder. The killer was undoubtedly still hiding inside the mansion, watching the terrified guests wait for the relentless storm to pass.
created_at"2026-07-25T14:51:32.111Z" 7/25/2026, 2:51:32 PM
model"google/gemini-3.6-flash-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1386
moderation_latency(null)
generation_time10725
tokens_prompt46
tokens_completion790
native_tokens_prompt38
native_tokens_completion2670
native_tokens_completion_images0
native_tokens_reasoning2560
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"
usage0.020082
router(null)
provider_responses
0
endpoint_id"5d6d133d-a953-4781-a835-7ee76f4e1388"
id"dM1kaqe-D8PqjrEPktKj-Qo"
is_byokfalse
latency1386
model_permaslug"google/gemini-3.6-flash-20260721"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784991092-cAXLjIeahY4xXqUgsBYd"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784991092-aN556BXrqbJxCtaMAJPY"
upstream_id"dM1kaqe-D8PqjrEPktKj-Qo"
total_cost0.020082
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420