Run: 2026-02-18-01KHQ93Q8RJHN45NCQSSVE5VBJ

Run Details

Duration:
4.7s
Cost:
$0.002022
Provider:
Anthropic

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 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 night sky. Nobody had visited the island for nearly three weeks now. Captain Harlow discovered the body just before the morning tide. She knelt beside the man and noticed his pale hands. A single red rose lay placed across his cold chest. The rain had washed away most of the visible clues. Harlow radioed the mainland but received only sharp, broken static. She recognized the victim as the mayor of Port Glenn. His expensive watch still ticked loudly in the damp air. Someone had gone to great lengths to arrange this scene.
created_at"2026-02-18T02:26:24.355408+00:00" 2/18/2026, 2:26:24 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency691
moderation_latency(null)
generation_time4660
tokens_prompt46
tokens_completion144
native_tokens_prompt44
native_tokens_completion126
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"
usage0.002022
router(null)
provider_responses
0
id"msg_01Hx2u6BpEhFERve1rJTjjNz"
status200
is_byokfalse
latency689
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
provider_name"Anthropic"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381579-drrEJdgaNY7ME451iDUC"
upstream_id"msg_01Hx2u6BpEhFERve1rJTjjNz"
total_cost0.002022
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910