Run: 2026-09-02-01M1HGWZH7D4N0J17A3XQENAKG

Run Details

Duration:
5.2s
Cost:
$0.005957
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
Rain lashed against the tall windows of the silent mansion. Inside the study, a grandfather clock chimed midnight with dread. Lord Harrington lay sprawled across his mahogany desk, utterly motionless. Fresh crimson blood dripped slowly onto the expensive Persian rug. An ornate silver dagger remained lodged deeply between his shoulders. The heavy velvet curtains fluttered before an open terrace door. Footsteps echoed down the hallway, approaching the dark crime scene. Detective Miller pushed the door wide open and gasped quietly. The killer had left a single white chess pawn behind.
created_at"2026-09-02T16:58:09.326Z" 9/2/2026, 4:58:09 PM
model"google/gemini-3.8-flash-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1081
moderation_latency(null)
generation_time5145
tokens_prompt46
tokens_completion500
native_tokens_prompt38
native_tokens_completion1581
native_tokens_completion_images0
native_tokens_reasoning1474
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"
usage0.00595725
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788368289-95eWnAMu3TKPOLIBIoa8"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788368289-QKcFkRsdIVZyKuh1wr7R"
upstream_id"oVWYas-JGdPxjrEP-JmNWA"
provider_responses
0
endpoint_id"d376f781-516d-42f9-936d-46f19abca6cc"
id"oVWYas-JGdPxjrEP-JmNWA"
is_byokfalse
latency1081
model_permaslug"google/gemini-3.8-flash-20260902"
provider_name"Google AI Studio"
status200
total_cost0.00595725
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
sentences9
wordCounts
010
110
210
310
410
510
610
710
810