Run: 2026-05-01-01KQHSNHSKH55QXVX0KMPB56MJ

Run Details

Duration:
1.3s
Cost:
$0.000282
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 old mansion loomed silently. Shadows danced across faded wallpaper. Footsteps echoed through empty halls. A single scream pierced darkness. Blood pooled on wooden floorboards. Detective entered with cautious eyes. Clues scattered like fallen leaves. Everyone harbored hidden secrets now.
created_at"2026-05-01T12:54:24.831Z" 5/1/2026, 12:54:24 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency404
moderation_latency(null)
generation_time1247
tokens_prompt46
tokens_completion80
native_tokens_prompt157
native_tokens_completion61
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached64
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"
usage0.00028155
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"36f674a4-f1a1-9e8a-905e-00fbfa788134"
is_byokfalse
latency108
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-1777640064-nveJtCj2CnGvnW71tPoZ"
session_id(null)
api_type"completions"
id"gen-1777640064-NV8UZQv6THHbLR2m8ifS"
upstream_id"36f674a4-f1a1-9e8a-905e-00fbfa788134"
total_cost0.00028155
cache_discount0.0000672
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
sentences8
wordCounts
05
15
25
35
45
55
65
75