Run: 2026-04-24-01KQ0G2D2CQTVQY9WMHN7BAXX3

Run Details

Duration:
9.4s
Cost:
$0.035550
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain hammered against the windows of Thornfield Manor tonight. Detective Margaret Hale stepped carefully across the polished oak floor. A single white candle flickered beside the victim's pale body. Lord Ashcroft lay motionless, his silver dagger buried deep within. Margaret knelt beside him, studying the strange symbols carved nearby. Five anxious guests waited silently in the drawing room nearby. Each one claimed innocence, yet one among them was lying. Margaret intended to uncover which one before dawn arrived outside.
created_at"2026-04-24T19:39:34.864Z" 4/24/2026, 7:39:34 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2272
moderation_latency(null)
generation_time9332
tokens_prompt46
tokens_completion272
native_tokens_prompt65
native_tokens_completion1409
native_tokens_completion_images(null)
native_tokens_reasoning139
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
usage0.03555
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"e5be52fa-d00b-40a4-b089-1c3396c97f43"
is_byokfalse
latency690
model_permaslug"anthropic/claude-4.7-opus-20260416"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777059574-SLTNrkkP03cGPI37ozWh"
session_id(null)
api_type"completions"
id"gen-1777059574-G4gCNSN6vRE9A05Hrpnr"
upstream_id"e5be52fa-d00b-40a4-b089-1c3396c97f43"
total_cost0.03555
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710