NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-10-08-01M4E0F0J278FP95P9VXKQ0FBF
Run Details
Model:
Claude Haiku 5.5 (Reasoning, Max)
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
2m 36s
Cost:
$0.019818
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)
100.0000%
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
Behind a privet hedge, Molly and Bill crouched like a pair of hungry foxes. Across the lawn, eleven sugar-crazed children shrieked around a bouncy castle while a clown twisted balloon animals. Near the patio, a folding table sagged beneath a mountain of presents wrapped in shimmering paper. Bill tugged at his rented dinosaur costume, which squeaked every time he moved. The side gate was unlocked. Molly found this deeply insulting. She unfolded the crumpled napkin holding their entire heist plan, which had three steps, two arrows, and a doodle of a unicorn that Bill had insisted on drawing. Their getaway ice cream van idled three streets away, still playing a tinny Happy Birthday on loop. "All of them, Bill," Molly whispered. "Every box, every bow." Bill frowned. "Even the ones from Grandma Ruth?" "Especially Ruth. Her socks are cashmere." Bill nodded solemnly, then bumped the hedge with his tail. Squeak! Every child on the lawn turned. A small boy in a pirate hat pointed his plastic sword at them and declared the dinosaur a thief. Molly sighed and pulled a paper party hat over her ears. Step four, written in tiny letters at the bottom of the napkin, said RUN.
created_at
"2026-10-08T15:00:16.59Z"
10/8/2026, 3:00:16 PM
model
"anthropic/claude-haiku-5.5-20261007"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2410
moderation_latency
(null)
generation_time
155887
tokens_prompt
75
tokens_completion
5294
native_tokens_prompt
95
native_tokens_completion
39617
native_tokens_completion_images
(null)
native_tokens_reasoning
39164
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
0.019818
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791471616-Sgkri1jbgqP0B2PmoL3f"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791471616-YrEV8GTYBdcwZStoSEZA"
upstream_id
"msg_011CfpyCMPU8K2miEnMTqn52"
provider_responses
0
endpoint_id
"b6cdf493-3a61-441f-a134-e7944fddb980"
id
"msg_011CfpyCMPU8K2miEnMTqn52"
is_byok
false
latency
726
model_permaslug
"anthropic/claude-haiku-5.5-20261007"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.019818
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: 9.95%, Deviation: 0.05%
neededClean
false
wordsTotal
201
wordsDialogue
20
100.0000%