Run: 2026-02-20-01KHYB7HDVTS7HD8T2PX35MN6B

Run Details

Duration:
13.4s
Cost:
$0.001069
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Torrential rain pounded the grimy windows of Blackwood Manor relentlessly. Inside the study, wealthy Lord Harrington lay slumped over dead. Earlier that evening, a single gunshot echoed through empty corridors. Terrified guests from the lavish dinner party scattered in panic. Detective Inspector Graves arrived swiftly at the chaotic crime scene. Crimson blood pooled beneath the victim's pale head on rug. The loyal butler's ornate silver tray lay overturned nearby suspiciously. Who among the five suspects wielded the fatal murder weapon?
created_at"2026-02-20T20:18:02.31Z" 2/20/2026, 8:18:02 PM
model"x-ai/grok-4.1-fast"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency206
moderation_latency(null)
generation_time13255
tokens_prompt46
tokens_completion393
native_tokens_prompt191
native_tokens_completion2106
native_tokens_completion_images0
native_tokens_reasoning1999
native_tokens_cached151
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"
usage0.00106855
router(null)
provider_responses
0
endpoint_id"9821aa0e-dce3-4c27-9716-161359123d0b"
id"82377841-c47f-58df-8d16-f9ae50dcdb88"
is_byokfalse
latency25
model_permaslug"x-ai/grok-4.1-fast"
provider_name"xAI"
status200
api_type"completions"
id"gen-1771618682-bWQ71XPCouJ5TJrWnZiS"
upstream_id"82377841-c47f-58df-8d16-f9ae50dcdb88"
total_cost0.00106855
cache_discount0.00002265
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710