Run: 2026-05-01-01KQHQT710G62N32JVNEHRFJ8Y

Run Details

Duration:
16.7s
Cost:
$0.004469
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
The millionaire tycoon lay murdered in his luxurious private study. Police officers arrived quickly to investigate the heinous crime scene. The lead detective examined the body for any obvious clues. Everyone present seemed to harbor secrets behind their nervous expressions.
created_at"2026-05-01T12:22:00.485Z" 5/1/2026, 12:22:00 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency16151
moderation_latency(null)
generation_time16681
tokens_prompt46
tokens_completion456
native_tokens_prompt159
native_tokens_completion1735
native_tokens_completion_images(null)
native_tokens_reasoning1689
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"
usage0.00446905
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"2b42dace-e173-9fd2-b364-77fb2bd707ea"
is_byokfalse
latency68
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-1777638120-34lmLb5oU6nB3AbVgrr6"
session_id(null)
api_type"completions"
id"gen-1777638120-PBljUBvjMNUsGR3FiePH"
upstream_id"2b42dace-e173-9fd2-b364-77fb2bd707ea"
total_cost0.00446905
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
sentences4
wordCounts
010
110
210
310