Run: 2026-05-01-01KQHRPS5P8K21AM7ZSXF8WDJ9

Run Details

Duration:
28.4s
Cost:
$0.006514
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 mansion stood silent under the moonlit sky as rain began to fall softly on the ancient grounds below. A mysterious figure lay lifeless on the carpeted floor of the study with a knife protruding from its cold chest. Inspector Harlan arrived at the scene and found the body immediately suspecting foul play in this quiet estate home tonight.
created_at"2026-05-01T12:37:36.573Z" 5/1/2026, 12:37:36 PM
model"x-ai/grok-4.3-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency27813
moderation_latency(null)
generation_time28300
tokens_prompt46
tokens_completion585
native_tokens_prompt159
native_tokens_completion2580
native_tokens_completion_images(null)
native_tokens_reasoning2514
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"
usage0.00651435
router(null)
provider_responses
0
endpoint_id"45623cb8-18e5-4b32-8fc4-85d05439982d"
id"3e5f592e-af5e-92b3-8dba-540e16a55b83"
is_byokfalse
latency85
model_permaslug"x-ai/grok-4.3-20260430"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777639056-aDn4PpqCRJWE6Q3oLJtU"
session_id(null)
api_type"completions"
id"gen-1777639056-KHejcUd8JShnwUFkSvjy"
upstream_id"3e5f592e-af5e-92b3-8dba-540e16a55b83"
total_cost0.00651435
cache_discount0.0001344
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
020
120
220