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Run: 2026-09-23-01M37NW1K64XG1TSA4AWA6Z7T7
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
22.7s
Cost:
$0.041940
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
100.00%
Dialogue to Total Word Ratio
(details)
99.9989%
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
The van smelled of stale crisps and ambition. Molly spread the blueprint across the dashboard, though it was really a birthday invitation with a crayon map on the back, drawn by six-year-old Tobias himself. Bill squinted at it. He had been squinting at things for forty years, and it had never once helped. "Bouncy castle's the problem," he said. Molly nodded gravely. The bouncy castle sat directly between the garden gate and the gift table, a wobbling fortress of vinyl patrolled by a dozen sugar-crazed toddlers. Beyond it waited the treasure: a mountain of wrapped boxes, glittering bags, and one suspiciously large parcel shaped exactly like a remote-control helicopter. "We go in as clowns," Molly said. Bill looked down at his outfit. He was already wearing the red nose. He had, in fact, been wearing it since Tuesday, for reasons he declined to discuss. "I'll distract the parents with balloon animals," Molly said. "You grab everything." She could not make balloon animals. Bill would slip through the hedge with the sack. Nobody, crucially, had mentioned the magician. Nobody had mentioned that the magician was their old partner, Gary, currently pulling a rabbit, with a flourish, from little Tobias's party hat.
created_at
"2026-09-23T17:44:00.887Z"
9/23/2026, 5:44:00 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
22681
moderation_latency
(null)
generation_time
22681
tokens_prompt
75
tokens_completion
649
native_tokens_prompt
95
native_tokens_completion
2078
native_tokens_completion_images
(null)
native_tokens_reasoning
1635
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
0.04194
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790185440-q3PXQMmJgHQfkFobwID4"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790185440-vguNXn9SFPLKByllqvDp"
upstream_id
"msg_011CfLnYofgypHG2RFRunqoL"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLnYofgypHG2RFRunqoL"
is_byok
false
latency
1823
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.04194
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
100.00%
Matches word count
n/a
neededClean
false
words
200
100.00%
Dialogue to Total Word Ratio
Ratio: 9.31%, Deviation: 0.69%
neededClean
false
wordsTotal
204
wordsDialogue
19
99.9989%