Run: 2026-02-24-01KJ8V5HY8NATD19M5NTPHDE04

Run Details

Duration:
29.3s
Cost:
$0.082780
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The body lay face down in the garden, half hidden by the roses that had long since begun to wilt. Detective Clara Marsh stepped through the iron gate, her boots sinking into the mud left by last night's heavy rain. She had seen death before, more times than she cared to count, but something about this scene felt deeply wrong. The victim wore an expensive silk dress, now stained dark red with blood that pooled beneath her still, crumpled form. A single pearl earring glinted in the morning light, torn from her ear and discarded carelessly among the thorny stems. Clara knelt beside the woman and pressed two gloved fingers to her neck, already knowing there would be no pulse. Behind her, a young officer retched quietly near the fountain, trying and failing to keep his composure in the dawn. The mansion loomed above them all, its dark windows staring down like the hollow eyes of a skull at midnight. Someone inside that house had killed this woman, and Clara swore silently that she would find out who did it. She stood, brushed the damp earth from her knees, and walked toward the front door without a moment of hesitation.
created_at"2026-02-24T22:08:58.839Z" 2/24/2026, 10:08:58 PM
model"anthropic/claude-4.6-opus-20260205"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1650
moderation_latency201
generation_time28969
tokens_prompt46
tokens_completion883
native_tokens_prompt61
native_tokens_completion3299
native_tokens_completion_images(null)
native_tokens_reasoning582
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"
usage0.08278
router(null)
provider_responses
0
endpoint_id"a8708fb9-08ea-43bb-a3b1-165c87ef09df"
id"ff2e4c28-9ec3-4ec1-b29e-396328ac59f1"
is_byokfalse
latency1616
model_permaslug"anthropic/claude-4.6-opus-20260205"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771970938-9mpuqmFAcgxkBjBxQJr9"
upstream_id"ff2e4c28-9ec3-4ec1-b29e-396328ac59f1"
total_cost0.08278
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920