Run: 2026-09-01-01M1EKS6EVHXMM8S24C2EX2VEW

Run Details

Model:
Grok 4.6 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
39.6s
Cost:
$0.016232
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 rain poured heavily upon the old mansion as Detective Harris arrived to investigate the mysterious death of Lord Blackwood. The lifeless body of Lord Blackwood lay sprawled on the library floor with a silver dagger protruding from his chest. His loyal butler stood trembling nearby while claiming he discovered the gruesome scene just moments after hearing a loud scream. The detective examined the crime scene carefully noting the open window and muddy footprints leading towards the dark forest outside. Suspects included the greedy nephew the jealous wife and the mysterious stranger who arrived at the mansion earlier that evening.
created_at"2026-09-01T13:50:47.78Z" 9/1/2026, 1:50:47 PM
model"x-ai/grok-4.6-20260810"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency571
moderation_latency(null)
generation_time39508
tokens_prompt46
tokens_completion292
native_tokens_prompt241
native_tokens_completion2657
native_tokens_completion_images(null)
native_tokens_reasoning2547
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"
usage0.016232
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788270647-aLZiF8GLTiiNe2UBLvtH"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788270647-mcKSzk3FzQAH6TLi8og9"
upstream_id"023349c4-e760-9a42-a903-e4f7172d1b8b"
provider_responses
0
endpoint_id"0d0536e3-7eb1-4acb-8249-c8813365c2d8"
id"023349c4-e760-9a42-a903-e4f7172d1b8b"
is_byokfalse
latency571
model_permaslug"x-ai/grok-4.6-20260810"
provider_name"xAI"
status200
total_cost0.016232
cache_discount0.000192
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420