Run: 2026-03-12-01KKHZG2S7RFAWR3J0NNVQBX3S

Run Details

Duration:
7.1s
Cost:
$0.013510
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The detective entered the large room where the lifeless body of the victim lay immediately in a pool of blood. Everyone present at the scene of the horrible crime seemed to be hiding some very important secrets from the past. The antique clock on the wall struck midnight loudly as the rain continued to pour down heavily outside the house. The police inspector examined the room very carefully looking for any clues that might reveal the identity of the killer.
created_at"2026-03-12T21:33:29.772Z" 3/12/2026, 9:33:29 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6815
moderation_latency(null)
generation_time7014
tokens_prompt46
tokens_completion116
native_tokens_prompt159
native_tokens_completion2237
native_tokens_completion_images0
native_tokens_reasoning2153
native_tokens_cached128
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0135096
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"42db4a86-2af8-a5e7-cf80-51079523d256"
is_byokfalse
latency313
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773351209-czHd0nC1NMp8PtycE08Q"
upstream_id"42db4a86-2af8-a5e7-cf80-51079523d256"
total_cost0.0135096
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
020
120
220
320