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Run: 2026-05-29-01KSSKB1S4AFSWF79MXYFDZ711
Run Details
Model:
Claude Opus 4.8 (Reasoning)
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
9.7s
Cost:
$0.011560
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. Couldn't sleep either?" "Not a wink. Not after what happened to poor Mr. Hargrove." "Terrible business, that. They say he collapsed right in the middle of the church social." "I heard it was the punch. Doris made the punch, you know." "Now don't go starting rumors. Doris wouldn't hurt a fly." "I'm not saying she would. I'm just saying it's awfully strange. He was perfectly healthy on Tuesday. I sold him a dozen cinnamon rolls myself." "Maybe it was his heart. The man was seventy-three." "Seventy-one. And his heart was fineāDr. Bellamy told me so at the harvest festival." "You and your gossip. Hand me that tray, would you? These won't frost themselves." "All I'm saying is, someone ought to look into it. The sheriff's too busy chasing speeders out on Route 9." "And I suppose you've appointed yourself detective?" "Why not? I knew everyone at that social. I know who he argued with, too." "Oh? And who would that be?" A long pause settled between them, broken only by the soft scrape of the spatula. "His business partner. The one who inherits everything now."
created_at
"2026-05-29T10:09:08.399Z"
5/29/2026, 10:09:08 AM
model
"anthropic/claude-4.8-opus-20260528"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1066
moderation_latency
(null)
generation_time
9667
tokens_prompt
81
tokens_completion
323
native_tokens_prompt
107
native_tokens_completion
441
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
0.01156
router
(null)
provider_responses
0
endpoint_id
"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id
"msg_0112YS7KeLUaJApGDJyXsT7v"
is_byok
false
latency
1066
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-1780049348-aKbPf0df5DXJkmoKiJHH"
session_id
(null)
api_type
"completions"
id
"gen-1780049348-NYVrfkRTlEyAJerdL9a8"
upstream_id
"msg_0112YS7KeLUaJApGDJyXsT7v"
total_cost
0.01156
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)