Run: 2026-02-18-01KHQ93D959ME0W39E9EDP5N5H

Run Details

Duration:
5.4s
Cost:
$0.002997
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
74.08% 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
The old lighthouse stood alone on the jagged cliff. Nobody had visited the keeper in three long weeks. Margaret found the door swinging open in the wind. She called out his name but heard nothing back. A single candle flickered on the worn wooden table. The flame cast shadows shaped like reaching desperate hands. She noticed the half eaten dinner still on plates. Cold soup and bread suggested he left mid meal. Margaret took one careful step across the creaking floor. Something dark and wet stained the pale stone tiles. Her lantern revealed footprints leading toward the spiral staircase. Each step upward made her breathing grow more shallow. At the top she found his favorite wool coat. It hung neatly on the hook beside the window. The lens still turned its slow and patient circle. But the keeper himself had completely and utterly vanished. Only his pocket watch remained ticking on the ledge.
created_at"2026-02-18T02:26:14.574686+00:00" 2/18/2026, 2:26:14 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency503
moderation_latency224
generation_time5061
tokens_prompt46
tokens_completion226
native_tokens_prompt44
native_tokens_completion191
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.002997
router(null)
provider_responses
0
id"7a2c9bed-b6dd-4745-a2ce-df2e910baac1"
status200
is_byokfalse
latency502
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
provider_name"Amazon Bedrock"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381568-obOT7uPD3Cf6YSfZsUg6"
upstream_id"7a2c9bed-b6dd-4745-a2ce-df2e910baac1"
total_cost0.002997
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"

Evaluation details

Result Evaluator Details Meta Data
74.08% Matches word count n/a
neededCleanfalse
sentences17
wordCounts
09
19
29
39
49
59
69
79
89
99
109
119
129
139
149
159
169