Run: 2026-02-18-01KHQ943HS2JXP02DHJRGWYFSX

Run Details

Duration:
3.8s
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 stood alone against the darkened sky. Nobody had visited the island in three long weeks. Captain Morris discovered the body near the broken stairs. Blood stained the cold stone floor beneath his boots. He reached for his radio with trembling, uncertain hands. Static filled the air where a voice should be. The victim clutched a torn photograph in her fist. Rain began falling hard across the narrow wooden dock. Morris recognized the face despite the damage already done. Someone powerful had wanted this woman permanently silenced tonight.
created_at"2026-02-18T02:26:36.020894+00:00" 2/18/2026, 2:26:36 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency648
moderation_latency157
generation_time3577
tokens_prompt46
tokens_completion140
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"43fa5906-cd2e-46e6-9a02-517a1845e5d5"
status200
is_byokfalse
latency643
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
provider_name"Amazon Bedrock"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381591-uFnLzxhs0fllS7MU1lNA"
upstream_id"43fa5906-cd2e-46e6-9a02-517a1845e5d5"
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