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Run: 2026-05-29-01KSSJST3DMFPS9112EFK0PJBB
Run Details
Model:
Claude Opus 4.8 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
19.5s
Cost:
$0.012265
Provider:
Anthropic
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
0.00%
Dialogue to Total Word Ratio
(details)
50.0000%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% words of dialogue between two thieves named Molly and Bill who are planning to break into a children's party to steal all the presents. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
Molly spread the blueprints across the table, knocking over a juice box. "Why do we have the floor plan for a Chuck E. Cheese?" Bill asked. "Because that's where the party is, genius. Little Timmy turns seven on Saturday." Bill scratched his head. "We're really doing this? Robbing a child?" "Not robbing a child. Liberating presents from a child," Molly corrected. "Big difference, ethically speaking." "Is it though?" She ignored him, tapping the map. "The pinata is here. The gift table is here. We strike during the cake." "What if there's security?" "It's a birthday party, Bill. The toughest guy there will be a clown." Bill shuddered. "I hate clowns." "Then wear a disguise. I'm thinking we go as the entertainment." "Balloon animals?" "Magicians," she said. "Misdirection is our specialty." Bill picked up a glittery party hat from the supply pile and frowned. "And the getaway?" "Minivan. Nobody suspects a minivan." "This is the dumbest plan you've ever had." "Dumber than the aquarium job?" He winced at the memory. "Nothing's dumber than the aquarium job." "Then we're improving." Molly grinned and slid him a hat. "Now put this on, and try to look festive." Bill sighed. "I really hate clowns."
created_at
"2026-05-29T09:59:43.479Z"
5/29/2026, 9:59:43 AM
model
"anthropic/claude-4.8-opus-20260528"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1046
moderation_latency
(null)
generation_time
9358
tokens_prompt
77
tokens_completion
335
native_tokens_prompt
93
native_tokens_completion
472
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
0.012265
router
(null)
provider_responses
0
endpoint_id
"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
is_byok
false
latency
10077
model_permaslug
"anthropic/claude-4.8-opus-20260528"
provider_name
"Anthropic"
status
504
1
endpoint_id
"dfc0e5bd-d703-4fe2-a7bb-655eb95d5441"
id
"msg_01XBFyE5NEhbkD5yYeTQ3LHH"
is_byok
false
latency
1046
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-1780048783-j3o0Ju4rn2HEtEZJp60t"
session_id
(null)
api_type
"completions"
id
"gen-1780048783-IGfK2IxYqrxk5V9MBJJT"
upstream_id
"msg_01XBFyE5NEhbkD5yYeTQ3LHH"
total_cost
0.012265
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
response_cache_source_id
(null)
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
words
200
0.00%
Dialogue to Total Word Ratio
Ratio: 71.50%, Deviation: 21.50%
neededClean
false
wordsTotal
200
wordsDialogue
143
50.0000%