Run: 2026-07-08-01KX1KD9YP0W8W27DTN7FQYN6K

Run Details

Model:
Grok 4.5 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
16.3s
Cost:
$0.009134
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 rain poured heavily outside the old abandoned mansion tonight. Inside the grand hall a body lay cold and lifeless. Detective Holmes entered carefully examining the bloody crime scene closely. Footprints of mud trailed from the window to the corpse. Suspects waited in another room for intense questioning to begin.
created_at"2026-07-08T19:31:23.356Z" 7/8/2026, 7:31:23 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency564
moderation_latency(null)
generation_time16053
tokens_prompt46
tokens_completion465
native_tokens_prompt241
native_tokens_completion1474
native_tokens_completion_images(null)
native_tokens_reasoning1417
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"
service_tier"default"
usage0.009134
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"a9700755-fdfe-9f12-b4e3-57f058d3c0c9"
is_byokfalse
latency290
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783539083-RNGRdjowW2EhPjxAdgTx"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783539083-n4jiic3arefgRudrTL3F"
upstream_id"a9700755-fdfe-9f12-b4e3-57f058d3c0c9"
total_cost0.009134
cache_discount0.000192
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
010
110
210
310
410