Run: 2026-02-18-01KHQ940MR8TAPH36CWS0HKCQ5

Run Details

Duration:
4.2s
Cost:
$0.001782
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 had stood empty for thirty years. Nobody in town ever dared to climb its stairs. Margaret found the body just before the sun rose. Her coffee cup shattered on the cold stone floor. The dead man wore a suit she recognized well. Rain had soaked his clothes through to the skin. She reached for her phone with trembling, uncertain hands. The lighthouse keeper had reportedly died decades before today. Yet here his grandson lay twisted among the rocks. Margaret whispered a name slowly into the salty air.
created_at"2026-02-18T02:26:33.218202+00:00" 2/18/2026, 2:26:33 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency693
moderation_latency109
generation_time3685
tokens_prompt46
tokens_completion131
native_tokens_prompt44
native_tokens_completion110
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"
usage0.001782
router(null)
provider_responses
0
id"fa38e60e-9280-410a-a54b-3c355abaa4de"
status200
is_byokfalse
latency693
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
provider_name"Amazon Bedrock"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381588-F9f0NeOQJjGrFcXKXm4T"
upstream_id"fa38e60e-9280-410a-a54b-3c355abaa4de"
total_cost0.001782
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