Run: 2026-05-29-01KSSKC4C9YN20BNQDX9PB7SEM

Run Details

Duration:
9.7s
Cost:
$0.010560
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Count dialogue tags (details)

Model input

User/Human
You are an expert novel writer in the cozy mystery genre. Write a scene of about 200 words, with dialogue between two characters. The dialogue should be unattributed, meaning the speaker is not explicitly mentioned. The scene should be set in a small town bakery. Only return the story, nothing else.

Model response

AI
The bell above the door chimed as warm cinnamon air wrapped around the room. "You're here early. The scones aren't even out yet." "I'm not here for scones. I'm here because Mabel Crawford's car was parked outside the library at midnight." "And how would you know that? Were you out wandering again?" "I couldn't sleep. And don't change the subject. Mabel never goes anywhere after eight. She says the night air ruins her complexion." "Maybe she had a late book to return." "The library's been closed for renovations since Tuesday. There were no lights on inside, but I saw a flashlight moving past the windows." "You're imagining things. Here, have a cruller. On the house." "You're awfully generous this morning. Almost like you want me to stop asking questions." "I just don't want you stirring up trouble. This town gossips enough as it is." "Funny. Mabel said the same thing yesterday, right before she asked me whether I'd seen anyone near the church fund box." "...The church fund box is missing?" "I never said it was missing. I only said she asked." A long pause. The oven timer buzzed, unanswered. "Sit down. I think we'd better talk before those scones burn."
created_at"2026-05-29T10:09:43.827Z" 5/29/2026, 10:09:43 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1464
moderation_latency(null)
generation_time9642
tokens_prompt81
tokens_completion317
native_tokens_prompt107
native_tokens_completion401
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.01056
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01MwNkYi2uH6DeNJcDENwnTq"
is_byokfalse
latency1458
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780049383-kazaVeokcUUrlMS5iDP4"
session_id(null)
api_type"completions"
id"gen-1780049383-Dj0P81F81Ib3Sak2ALlW"
upstream_id"msg_01MwNkYi2uH6DeNJcDENwnTq"
total_cost0.01056
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Count dialogue tags n/a
neededCleanfalse
dialogueTags(empty)