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Run: 2026-05-31-01KSYXCE0KF4WTTGBXKYETASWE
Run Details
Model:
Claude Opus 4.8 (Reasoning, High)
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
9.6s
Cost:
$0.011310
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
Messages
Meta
AI
The bell above the door jingled as the morning light spilled across the flour-dusted counter. "You're here early. The cinnamon rolls aren't even out yet." "I didn't come for the rolls. I came because I heard something last night." "Oh? Pour yourself some coffee and tell me. The pot's fresh." "It was just past midnight. I couldn't sleep, so I was sitting by my window. And I saw someone leaving the Hargrove house." "At midnight? Are you certain it wasn't just Walter taking out the bins?" "Walter's been in Florida for two weeks. The house is supposed to be empty." "Empty? Then who—" "That's exactly what I've been wondering. Whoever it was, they were carrying something. A box, maybe. Tucked under one arm, moving quick toward the alley." "You should tell Sheriff Daniels." "And say what? That I saw a shadow? He'll think I've been into the sherry again." "Then we'll need proof. Something more than shadows." "We?" "You don't think I'm letting you poke around that house alone, do you? Besides, I've got a key. Margaret gave me one years ago, for watering her ferns." "You're suggesting we break in?" "Not break in. We have a key. That's practically an invitation."
created_at
"2026-05-31T11:40:51.615Z"
5/31/2026, 11:40:51 AM
model
"anthropic/claude-4.8-opus-20260528"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1365
moderation_latency
(null)
generation_time
9585
tokens_prompt
81
tokens_completion
320
native_tokens_prompt
107
native_tokens_completion
431
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"end_turn"
service_tier
"default"
usage
0.01131
router
(null)
provider_responses
0
endpoint_id
"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id
"msg_01E9Hs3iZt3KgoFDyxDdHb97"
is_byok
false
latency
1365
model_permaslug
"anthropic/claude-4.8-opus-20260528"
provider_name
"Anthropic"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer
(null)
request_id
"req-1780227651-9N8lmKy2VQIe3YtpqBUK"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1780227651-FL69GEpmknlCVHMx13Ev"
upstream_id
"msg_01E9Hs3iZt3KgoFDyxDdHb97"
total_cost
0.01131
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Count dialogue tags
n/a
neededClean
false
dialogueTags
(empty)