Run: 2026-07-08-01KX1M0J2XTFQ9339GDYBG23C6

Run Details

Duration:
28.8s
Cost:
$0.017192
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 old clock struck midnight as thunder roared loudly outside the grand estate where guests gathered nervously for dinner tonight. Suddenly a piercing scream echoed from the library causing everyone to freeze in their tracks with growing fear and panic. When the butler opened the heavy door he found the host lying dead on the floor with a bloody dagger. The detective carefully examined the large room noticing the broken window and the missing valuable painting from the nearby wall. All the guests whispered among themselves about possible hidden motives while the heavy rain poured hard outside the isolated mansion.
created_at"2026-07-08T19:41:54.146Z" 7/8/2026, 7:41:54 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency439
moderation_latency(null)
generation_time28695
tokens_prompt46
tokens_completion812
native_tokens_prompt241
native_tokens_completion2817
native_tokens_completion_images(null)
native_tokens_reasoning2712
native_tokens_cached128
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"
usage0.017192
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"27877390-7d03-9a79-ac35-78912c56df42"
is_byokfalse
latency125
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783539714-anNoSt8ow8fsBVGc2Pa1"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783539714-w4aC27m9LQtHohPdvw6g"
upstream_id"27877390-7d03-9a79-ac35-78912c56df42"
total_cost0.017192
cache_discount0.000192
upstream_inference_cost0
provider_name"xAI"
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