Run: 2026-03-12-01KKHZBT45XXQA2MCSDF6JPKRF

Run Details

Duration:
11.5s
Cost:
$0.020524
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 wealthy host lay motionless in the library with a dagger protruding from his chest on this very fateful night. Rain pounded heavily against the tall windows as the guests stared in horror at the gruesome scene before their eyes. The butler promptly summoned the local police department to investigate this horrible crime that occurred during the elegant dinner party. Everyone present seemed to have a possible motive for committing this awful murder inside the isolated country estate that night. Detective Harlan entered the room with a determined look upon his face and began questioning all the suspicious guests immediately.
created_at"2026-03-12T21:31:09.834Z" 3/12/2026, 9:31:09 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency11140
moderation_latency(null)
generation_time11442
tokens_prompt46
tokens_completion159
native_tokens_prompt159
native_tokens_completion3406
native_tokens_completion_images0
native_tokens_reasoning3301
native_tokens_cached128
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0205236
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"adbeeeb8-3b43-cd34-f46f-d25789b8637d"
is_byokfalse
latency265
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773351069-wzOXxrY8XRTPyIiDW7i3"
upstream_id"adbeeeb8-3b43-cd34-f46f-d25789b8637d"
total_cost0.0205236
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

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