Run: 2026-02-18-01KHQ949HTHXC7JVSA9N4W9C20

Run Details

Duration:
3.9s
Cost:
$0.001857
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 against the stormy sky. Margaret found the body just before the clock struck. Blood stained the wooden floorboards near the broken window. Nobody had heard a single scream throughout the night. The victim clutched a torn photograph in his hand. Rain hammered the glass as she reached for him. His cold eyes stared blankly toward the iron door. Margaret stepped back and knocked over a glass bottle. The sound echoed through every empty room in silence. She finally pulled out her phone and dialed nine.
created_at"2026-02-18T02:26:42.082029+00:00" 2/18/2026, 2:26:42 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1075
moderation_latency191
generation_time3650
tokens_prompt46
tokens_completion134
native_tokens_prompt44
native_tokens_completion115
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"
usage0.001857
router(null)
provider_responses
0
id"7a16dc7f-cd94-4430-82ce-648458236c9e"
status200
is_byokfalse
latency1075
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
provider_name"Amazon Bedrock"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381597-bBCpF8OlXc3LR4L6i60v"
upstream_id"7a16dc7f-cd94-4430-82ce-648458236c9e"
total_cost0.001857
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
sentences10
wordCounts
09
19
29
39
49
59
69
79
89
99