Run: 2026-05-01-01KQHT6CK0G3YBACGVFFHZXVAR

Run Details

Duration:
1.3s
Cost:
$0.000229
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
82.30% 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
Detective entered the dimly lit room. Blood pooled across the wooden floor. Victim lay motionless near the window. Shadows danced on the silent walls. Clues waited patiently for discovery.
created_at"2026-05-01T13:03:36.548Z" 5/1/2026, 1:03:36 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency408
moderation_latency(null)
generation_time1261
tokens_prompt46
tokens_completion52
native_tokens_prompt157
native_tokens_completion40
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"
usage0.00022905
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"4d856afa-e1df-a06a-b6cf-55afc955dd0b"
is_byokfalse
latency89
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-1777640616-SktzPAPsLtrE2fsDWMJ6"
session_id(null)
api_type"completions"
id"gen-1777640616-yf76UI5z6k2gSpKRJ76Z"
upstream_id"4d856afa-e1df-a06a-b6cf-55afc955dd0b"
total_cost0.00022905
cache_discount0.0000672
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
82.30% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
06
16
26
36
45