Run: 2026-05-01-01KQHS978WPB3M5Q7K2CZQJTQ4

Run Details

Duration:
37.5s
Cost:
$0.007727
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 dark night fell silently. Thunder echoed through empty halls. A desperate scream rang out. The lord lay cold dead. Maid found him in study. She alerted others right away. Police came to investigate fully. Inspector questioned every family member. Tension filled the large room. Answers seemed beyond their reach.
created_at"2026-05-01T12:47:40.832Z" 5/1/2026, 12:47:40 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency36975
moderation_latency(null)
generation_time37458
tokens_prompt46
tokens_completion653
native_tokens_prompt159
native_tokens_completion3038
native_tokens_completion_images(null)
native_tokens_reasoning2978
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"
usage0.00772655
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"03213046-c5fd-901c-af25-32d8814acc4e"
is_byokfalse
latency96
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-1777639660-VtMqMYFX2whkwPNknoVj"
session_id(null)
api_type"completions"
id"gen-1777639660-kRBj5sNLm5utOO84tUde"
upstream_id"03213046-c5fd-901c-af25-32d8814acc4e"
total_cost0.00772655
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
sentences10
wordCounts
05
15
25
35
45
55
65
75
85
95