Run: 2026-05-29-01KSSJTW8YQDM3YRVY82A4MP9A

Run Details

Duration:
8.9s
Cost:
$0.010685
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 air rushed out to greet the morning chill. "You're here early. The cinnamon rolls aren't even out of the oven yet." "I'm not here for the rolls. Though I'll take two when they're ready." "Then what brings you to my counter before sunrise?" "Margaret Wilkins. You heard, didn't you?" "The whole town's heard. Found in her garden, poor thing. Such a shame." "That's just it. I don't think it was her heart at all." "Lower your voice. The Hendersons are by the window." "She was in here Tuesday, wasn't she? Ordered that lemon cake for the church social." "She did. Sat right where you're standing, complaining about her neighbor again." "Which neighbor?" "You know which one. The one with the prize roses she was always so jealous of." "And those roses just happened to win first place the day before Margaret died." "You can't possibly think—" "I think it's awfully convenient. And I think you know more than you're letting on." A long pause settled between them, broken only by the oven timer's gentle ding. "The rolls are ready. And maybe... maybe we should talk in the back." "Now you're speaking my language."
created_at"2026-05-29T10:00:18.474Z" 5/29/2026, 10:00:18 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency976
moderation_latency112
generation_time8763
tokens_prompt81
tokens_completion319
native_tokens_prompt107
native_tokens_completion406
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"
usage0.010685
router(null)
provider_responses
0
endpoint_id"dfc0e5bd-d703-4fe2-a7bb-655eb95d5441"
id"msg_0192BAzCEgYPrNkcYPGo9ZWq"
is_byokfalse
latency976
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-1780048818-zA2zx9rq7iVaeamVpJny"
session_id(null)
api_type"completions"
id"gen-1780048818-JwNyfPMzdAH4E393xINF"
upstream_id"msg_0192BAzCEgYPrNkcYPGo9ZWq"
total_cost0.010685
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)