Run: 2026-04-24-01KQ0GABNRMGVSS0CRCX94K6HT

Run Details

Duration:
3.6s
Cost:
$0.005550
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the cobblestone street. Detective Mara lit her cigarette. The mansion loomed above her. Lightning split the black sky. A scream pierced the night. She sprinted toward the door. Two officers stood guard outside. Their faces looked unusually pale. Mara pushed past them quickly. Blood pooled across marble floors. A woman lay face down. Pearls scattered near her hand. Someone had silenced her forever. Mara knelt beside the body. The pearls were still warm. The killer remained very close.
created_at"2026-04-24T19:43:55.58Z" 4/24/2026, 7:43:55 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1372
moderation_latency(null)
generation_time3564
tokens_prompt46
tokens_completion165
native_tokens_prompt65
native_tokens_completion209
native_tokens_completion_images(null)
native_tokens_reasoning39
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"
usage0.00555
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"4264a4dd-f39c-4e65-a797-9056958935e7"
is_byokfalse
latency815
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-1777059835-UiOcID3TtIo38xQmcbOD"
session_id(null)
api_type"completions"
id"gen-1777059835-vGGnSJ12RknSc318rE5j"
upstream_id"4264a4dd-f39c-4e65-a797-9056958935e7"
total_cost0.00555
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
sentences16
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155