Model

Claude 3.7 Sonnet

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2025-02-24-01JMWZR8KWYG4GJNCZ41NJGE6W

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 body lay twisted on the old wooden floor beneath him. Blood pooled around her head, creating a dark crimson halo. Detective Morgan kneeled down to examine the gruesome crime scene. He checked his watch—three hours since the call came in. The victim wore expensive clothes, jewelry still on her wrists. This wasn't a robbery gone wrong; something else happened here. Morgan noticed small marks circling the woman's pale slender neck. A camera flash illuminated the room as evidence was documented. The medical examiner pointed to bruises forming on her arms. "Time of death: approximately midnight," she said with certainty. Rain tapped against the windows like impatient, restless little fingers. Somewhere in the mansion, a grandfather clock chimed four times. The detective stood, surveying the opulent room with narrow eyes. Someone wanted her dead, and they'd planned it meticulously. Now it was his job to unravel their careful work.
id"gen-1740434580-6YrovKg3ABCZsMUhvq4z" 
upstream_id"msg_01Svdh89x2xxfyj8K5w7qfW8" 
total_cost0.003477
cache_discount(null)
provider_name"Anthropic" 
created_at"2025-02-24T22:03:05.161862+00:00" Monday, February 24th, 2025 at 10:03:05 PM GMT+00:00
model"anthropic/claude-3-7-sonnet-20250219:beta" 
app_id182717
streamedtrue
cancelledfalse
latency371
moderation_latency(null)
generation_time4058
tokens_prompt42
tokens_completion187
native_tokens_prompt44
native_tokens_completion223
native_tokens_reasoning0
num_media_prompt(null)
num_media_completion(null)
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"stop" 
usage0.003477

Evaluation details

Result Evaluator Details Meta Data
93.0885% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
011
110
210
311
410
510
610
710
810
99
1010
1110
1210
139
1410