NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-06-01KK1GSPKS83ZR5PR2DM0M69C8
Run Details
Model:
Inception Mercury
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
2.0s
Cost:
$0.000104
Provider:
Inception
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
The rain hammered the cobblestones as Mrs. Whitaker's carriage creaked, announcing her arrival at the manor under a darkened sky. Inside, the grand foyer glittered with crystal chandeliers, yet an uneasy silence clung to every polished marble and echoing whispers. Lady Eleanor, her silver hair pinned, stared at the shattered portrait, her eyes reflecting a hidden, desperate secret in silence. At the kitchen table, a silver dagger lay open, its blade catching the moonlight that slipped through shutters and shadows. Detective Marlowe entered, his coat soaked, his mind already racing through motives, alibis, and the inevitable confession in the night.
created_at
"2026-03-06T12:08:45.44Z"
3/6/2026, 12:08:45 PM
model
"inception/mercury"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1928
moderation_latency
(null)
generation_time
1979
tokens_prompt
46
tokens_completion
164
native_tokens_prompt
47
native_tokens_completion
133
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
33
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.000104075
router
(null)
provider_responses
0
endpoint_id
"da1082ea-721e-460e-b330-034ae7aefc7f"
id
"chatcmpl-0a710430-f0e4-4e43-95aa-5ecce71a513e"
is_byok
false
latency
96
model_permaslug
"inception/mercury"
provider_name
"Inception"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer
(null)
api_type
"completions"
id
"gen-1772798925-VBC6XyDVVdCmNlnGQSsA"
upstream_id
"chatcmpl-0a710430-f0e4-4e43-95aa-5ecce71a513e"
total_cost
0.000104075
cache_discount
0.000007425
upstream_inference_cost
0
provider_name
"Inception"
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