Run: 2026-02-24-01KJ8TW926G9MAZX48FG42DTKH

Run Details

Duration:
41.1s
Cost:
$0.064098
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 cold rain fell hard upon the dark cobblestone streets. Detective Clara Voss arrived early at the grim crime scene. The body lay still upon the cold and dusty floor. The victim was Lord Edmund Hale, the respected local judge. His pale face still wore a terrifying look of horror. Clara slowly knelt beside him and studied the deep wound. No murder weapon appeared anywhere within the vast shadowed library. Whoever had done this was both careful and very clever. Clara stood and glanced around at the assembled household staff. Each one of them looked frightened but also very guilty.
created_at"2026-02-24T22:03:54.831Z" 2/24/2026, 10:03:54 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency541
moderation_latency(null)
generation_time41026
tokens_prompt46
tokens_completion986
native_tokens_prompt61
native_tokens_completion4261
native_tokens_completion_images(null)
native_tokens_reasoning839
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"
usage0.064098
router(null)
provider_responses
0
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
id"msg_015g3ME8RHt1PHeUwQ4vSReb"
is_byokfalse
latency520
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771970634-jysxHXcqWSRzFr54m0KB"
upstream_id"msg_015g3ME8RHt1PHeUwQ4vSReb"
total_cost0.064098
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