Run: 2026-09-23-01M36T3MFYNGNMRPZBB1VJEX68

Run Details

Duration:
19.9s
Cost:
$0.009498
Provider:
xAI

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 cold rain hammered the library windows while Inspector Hale studied the body sprawled across the long oak reading table. A silver letter opener lay beside the silent victim, its carved handle still warm beneath the flickering green desk lamp. Hale noticed fresh muddy footprints leading from the locked garden door toward the empty chair near the cold stone fireplace. Nobody in the quiet house claimed to have heard a struggle, yet the old clock had stopped at midnight exactly. Outside in the courtyard, a single glove floated in the fountain, and Hale knew the killer was still somewhere inside.
created_at"2026-09-23T09:38:49.477Z" 9/23/2026, 9:38:49 AM
model"x-ai/grok-4.7-20260916"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency605
moderation_latency(null)
generation_time19860
tokens_prompt46
tokens_completion338
native_tokens_prompt1277
native_tokens_completion1841
native_tokens_completion_images(null)
native_tokens_reasoning1730
native_tokens_cached1152
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"completed"
service_tier"default"
usage0.0094976
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790156329-gYS1VcveiKhbuJnY1729"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790156329-jNSHD5gOmkF5CjIs7GhS"
upstream_id"7df58379-6ae6-9c20-a26e-bbe7d43dc0cc"
provider_responses
0
endpoint_id"c942f37a-87e1-4fa8-83d0-8c67fda4fb4a"
id"7df58379-6ae6-9c20-a26e-bbe7d43dc0cc"
is_byokfalse
latency196
model_permaslug"x-ai/grok-4.7-20260916"
provider_name"xAI"
status200
total_cost0.0094976
cache_discount0.0013824
upstream_inference_cost0
provider_name"xAI"
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