Run: 2026-05-01-01KQHT85W6QAGS6847HE9CHJ8W

Run Details

Duration:
2.0s
Cost:
$0.000212
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
97.24% 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
Darkness enveloped the silent mansion. Footsteps echoed through empty halls. Shadows danced on ancient walls. A scream pierced the quiet night. Blood pooled beneath the victim. Detective arrived with heavy suspicion. Clues scattered across marble floor. Secrets whispered among fearful guests.
created_at"2026-05-01T13:04:35.21Z" 5/1/2026, 1:04:35 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency396
moderation_latency(null)
generation_time1708
tokens_prompt46
tokens_completion82
native_tokens_prompt157
native_tokens_completion60
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.00021185
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"7fb7b5be-31eb-9d0c-a0c4-7a82c0188522"
is_byokfalse
latency67
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-1777640675-VBrJb2UEv1NYDWw6q2Of"
session_id(null)
api_type"completions"
id"gen-1777640675-u3fAPsKvxH4Z5hz9Rwg3"
upstream_id"7fb7b5be-31eb-9d0c-a0c4-7a82c0188522"
total_cost0.00021185
cache_discount0.0001344
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
97.24% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
05
15
25
36
45
55
65
75