Run: 2026-03-12-01KKHYSNEJ8W3KVF4B3NH4MG1Z

Run Details

Duration:
640ms
Cost:
$0.000601
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
74.08% 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
The detective entered the dimly lit mansion with caution. Blood stained the antique carpet in a gruesome pattern. Servants whispered secrets about the victim in hushed tones. A broken clock on the wall had stopped abruptly. Shadows danced eerily across the walls of the study. The inspector examined the body lying motionless on floor.
created_at"2026-03-12T21:21:15.224Z" 3/12/2026, 9:21:15 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency305
moderation_latency(null)
generation_time560
tokens_prompt46
tokens_completion94
native_tokens_prompt157
native_tokens_completion67
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached64
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"
usage0.0006008
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"315e86f3-6758-9a07-7161-ac9467e7d587"
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-1773350475-YB6GYeK0w0eMknwR0Wo4"
upstream_id"315e86f3-6758-9a07-7161-ac9467e7d587"
total_cost0.0006008
cache_discount0.0001152
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
74.08% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
09
19
29
39
49
59