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Run: 2026-09-23-01M36WHZJBWQMSA8GGHMCBJQDE
Run Details
Model:
Grok 4.7 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
21.1s
Cost:
$0.011187
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
Messages
Meta
AI
Rain hammered the manor windows while Detective Hale studied the silent library and the body beneath the oak desk tonight. A single candle guttered beside the scattered letters, and the air smelled sharply of old paper, cold iron, and fear. No servant answered the bell, and every corridor seemed to hold a quiet listener just beyond the next darkened doorway. Hale noted the missing dagger, the unlocked garden door, and one muddy footprint pointing toward the dark east wing stairs. Somewhere above them a floorboard creaked once, and Hale understood the killer had not yet left the silent old house.
created_at
"2026-09-23T10:21:36.72Z"
9/23/2026, 10:21:36 AM
model
"x-ai/grok-4.7-20260916"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
980
moderation_latency
(null)
generation_time
21113
tokens_prompt
46
tokens_completion
345
native_tokens_prompt
1277
native_tokens_completion
2193
native_tokens_completion_images
(null)
native_tokens_reasoning
2077
native_tokens_cached
1152
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
service_tier
"default"
usage
0.0111872
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790158896-pfQtZuvEpat4xfm3B8CY"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790158896-wW49VeYuCYt2PtilynEQ"
upstream_id
"094e30bf-20f8-9c15-984a-7b74c53c4135"
provider_responses
0
endpoint_id
"c942f37a-87e1-4fa8-83d0-8c67fda4fb4a"
id
"094e30bf-20f8-9c15-984a-7b74c53c4135"
is_byok
false
latency
190
model_permaslug
"x-ai/grok-4.7-20260916"
provider_name
"xAI"
status
200
total_cost
0.0111872
cache_discount
0.0013824
upstream_inference_cost
0
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
neededClean
false
sentences
5
wordCounts
0
20
1
20
2
20
3
20
4
20