Run: 2026-07-08-01KX1MSWRWAG09EGQEZDER0RVR

Run Details

Model:
Grok 4.5 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
23.9s
Cost:
$0.009590
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
Heavy rain poured outside the old silent mansion that night. A cold dead body lay motionless on the bloodied floor. The young detective entered and gasped at the grim scene. Who could have committed such a brutal outrageous crime tonight? Few clues existed yet the bloody knife still remained nearby.
created_at"2026-07-08T19:55:44.289Z" 7/8/2026, 7:55:44 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency426
moderation_latency(null)
generation_time13827
tokens_prompt46
tokens_completion457
native_tokens_prompt241
native_tokens_completion1550
native_tokens_completion_images(null)
native_tokens_reasoning1494
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"
usage0.00959
router(null)
provider_responses
0
endpoint_id"78a73286-52c4-4d1d-9d13-c1870c25b143"
is_byokfalse
latency154
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status(null)
1
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"a54d70ee-59d1-9d8a-b70f-672fb7422efd"
is_byokfalse
latency109
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-1783540544-isY8oNODbgaDmQwEo2sc"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783540544-utIhjOx2SFDUlZ5ItYrU"
upstream_id"a54d70ee-59d1-9d8a-b70f-672fb7422efd"
total_cost0.00959
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