Run: 2026-05-01-01KQHSDXA18HZWWGPHY7Z9VCJ5

Run Details

Duration:
32.7s
Cost:
$0.007509
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The fierce storm raged outside. Lightning illuminated the old mansion. Butler discovered the body quickly. Blood stained the Persian rug. Victim held a torn letter. Detective inspected the grim scene. Clues puzzled the skilled investigator.
created_at"2026-05-01T12:50:14.47Z" 5/1/2026, 12:50:14 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency32292
moderation_latency(null)
generation_time32613
tokens_prompt46
tokens_completion786
native_tokens_prompt159
native_tokens_completion2978
native_tokens_completion_images(null)
native_tokens_reasoning2935
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"
usage0.00750935
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"b18c37e5-2e9a-95c9-8b79-c62557afe3dd"
is_byokfalse
latency83
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777639814-ADrcuYpis1zzLyy631B1"
session_id(null)
api_type"completions"
id"gen-1777639814-r7rchDK2ULAeg152z14t"
upstream_id"b18c37e5-2e9a-95c9-8b79-c62557afe3dd"
total_cost0.00750935
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
sentences7
wordCounts
05
15
25
35
45
55
65