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Run: 2026-09-23-01M37PPJF3P9BQ9KW0XX00KW5X
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
21.9s
Cost:
$0.038420
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
99.98%
Matches word count
(details)
100.00%
Dialogue to Total Word Ratio
(details)
99.9909%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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 bonnet of the van. They were not, strictly speaking, blueprints. They were a birthday invitation covered in glitter unicorns, peeled off a lamppost by Bill that morning with the reverence of a man handling the Crown Jewels. "Tyler turns seven at two o'clock," Molly said. Bill nodded gravely and circled the address with a crayon, because the pen had been lost in the previous job, which had also gone badly. The plan was elegant. Children's parties were chaos engines. Sugar-crazed guests, exhausted parents, and a mountain of wrapped gifts piled unattended beside a bouncy castle. Nobody counted presents. Nobody watched the table. By the time anyone noticed the missing loot, the thieves would be three towns away, drowning in remote-control dinosaurs. "Then we strike at two-fifteen," Bill said. Molly pulled a garment bag from the back seat and unzipped it with a flourish. Inside lay a rainbow wig, enormous shoes, and a polka-dot suit that had clearly seen darker days. "Nobody suspects the clown." Bill stared at the costume. His left eye twitched, the way it had since the incident at his cousin's christening. "I hate clowns." Molly tossed him the red nose. "Wear the nose."
created_at
"2026-09-23T17:58:30.138Z"
9/23/2026, 5:58:30 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
6781
moderation_latency
(null)
generation_time
21852
tokens_prompt
75
tokens_completion
539
native_tokens_prompt
95
native_tokens_completion
1902
native_tokens_completion_images
(null)
native_tokens_reasoning
1450
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
0.03842
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790186310-6SBfPdIEmyN2b4QKY9rr"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790186310-7OimcUh349Ef1t5feOhj"
upstream_id
"msg_011CfLoetPyyFBF3TZRcheLL"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLoetPyyFBF3TZRcheLL"
is_byok
false
latency
2685
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.03842
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Claude Platform on AWS"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
99.98%
Matches word count
n/a
neededClean
false
words
202
100.00%
Dialogue to Total Word Ratio
Ratio: 10.68%, Deviation: 0.68%
neededClean
false
wordsTotal
206
wordsDialogue
22
99.9909%