NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-10-08-01M4DAK8GS8AC2N2A7WYHB72AV
Run Details
Model:
Claude Haiku 5.5 (Reasoning, Medium)
Test:
Dialogue tags
Scenario:
Write 500 words with 30% dialogue
Duration:
6.5s
Cost:
$0.000461
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
0.00%
Matches word count
(details)
0.00%
Dialogue to Total Word Ratio
(details)
0.0000%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 30% 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 crouched behind the hedge, peering through the gap at the glowing bounce castle in the Hendersons' backyard. Balloons bobbed against the fence. Somewhere inside, twenty-three six-year-olds were screaming with joy. Bill slid in beside her, holding a clipboard he had clearly stolen from a dentist's office. "Status report," he whispered. "The presents are stacked by the patio doors," Molly said. "Fourteen boxes, three of them shaped like ponies. The big one at the bottom is wrapped in silver paper." "The silver one is mine," Bill said. "I've been thinking about that one all week." "You cannot be serious. We're stealing from children." "We're borrowing from children. There's a difference." He tapped the clipboard. "Borrowing has a plan. Stealing is just grabbing." Molly sighed. "Fine. Walk me through it." "Step one: the bouncy castle man is distracted by the clown. Step two: we go in through the side gate. Step three: we load the presents into the wheelbarrow." "Why is there a wheelbarrow in your plan?" "Because the van wouldn't fit through the gate, and I refuse to carry fourteen boxes like a donkey." Molly stared at him. "You put a wheelbarrow in a heist." "I put a wheelbarrow in a heist. It's a classic move." A shriek erupted from inside, followed by a cheerful pop. Both of them flinched. "Okay," Molly said, "what happens if somebody sees us?" Bill straightened his fake moustache. "We tell them we're the entertainment. Nobody questions the entertainment." "We're not dressed as entertainment." "We're dressed as balloon artists." Molly looked down at her black turtleneck and cargo pants. "Bill, I am wearing a ski mask." "It's a balloon artist's ski mask. They're very popular this season." From the house, a small voice yelled, "Mummy, the clown's got a sausage dog!" The clown began to honk. "Now," Bill whispered, grinning. "Go time." They crept along the fence, past the sandbox and a tricycle lying on its side. Molly reached the side gate first and gave it a gentle push. It squeaked loudly. Bill froze. "Did that gate just announce us?" "It did." A small face appeared at the kitchen window, pressed against the glass, staring straight at them. Bill raised one hand and waved. The face waved back. "Abort," Molly hissed. "Abort, abort." "Too late," Bill said, pulling the wheelbarrow forward. "She likes us. Now we have to do this properly."
created_at
"2026-10-08T08:38:07.136Z"
10/8/2026, 8:38:07 AM
model
"anthropic/claude-haiku-5.5-20261007"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
721
moderation_latency
(null)
generation_time
6458
tokens_prompt
75
tokens_completion
615
native_tokens_prompt
95
native_tokens_completion
902
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
0.0004605
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791448687-lfCA9UOyLVPxuOl5i3qG"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791448687-38VksKbv4XmPXeYMBWCk"
upstream_id
"msg_011CfpU482weLnDHGEzaYUSP"
provider_responses
0
endpoint_id
"b6cdf493-3a61-441f-a134-e7944fddb980"
id
"msg_011CfpU482weLnDHGEzaYUSP"
is_byok
false
latency
721
model_permaslug
"anthropic/claude-haiku-5.5-20261007"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.0004605
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
0.00%
Matches word count
n/a
neededClean
false
words
396
0.00%
Dialogue to Total Word Ratio
Ratio: 55.89%, Deviation: 25.89%
neededClean
false
wordsTotal
399
wordsDialogue
223
0.0000%