NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-10-08-01M4DA0WGSRPJ2VB7QAEWYJDE3
Run Details
Model:
Claude Haiku 5.5 (Reasoning, Medium)
Test:
Dialogue tags
Scenario:
Write 500 words with 50% dialogue
Duration:
7.3s
Cost:
$0.000492
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
0.00%
Matches word count
(details)
1.78%
Dialogue to Total Word Ratio
(details)
0.8914%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 500 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 crouched behind the hedge, peering through the gap in the fence. Balloons bobbed over the back lawn, and a tower of brightly wrapped boxes sat beside a bouncy castle shaped like a giant purple dragon. Bill slid in beside her, holding a clipboard and a pair of binoculars that had clearly been stolen from a birdwatching society. "Right. Phase one. Are we sure this is the right party?" "It says 'Tyler's Ninth Birthday' on the banner," Molly whispered. "Unless you think there's a second kid turning nine in this cul-de-sac who's also having a dragon castle." "Fine, fine. Phase two, then. Where's the security?" Molly pointed at a plump man in a cardboard crown, who was blowing up a balloon with the grim determination of a man defusing a bomb. "That's the entertainment. Wait, no. That's the uncle. Or the clown. Honestly, I can't tell with the face paint." "So basically, no security." "Basically, no security. Just a lot of sugar and one very anxious grandmother guarding the cake." Bill flipped a page on his clipboard. "Okay. The plan. We wait until the piñata is cracked open, everyone rushes the candy, and we slip in during the chaos." "That's the plan? Bill, that's the plan every thief uses at a children's party. Those kids have shoved grown adults out of the way for a single gummy worm." "Which is why we're going to be smarter. We go in dressed as party guests. I brought name tags." Molly squinted at the name tag he held up. It read: HELLO, MY NAME IS BALLOON MAN. "You can't be Balloon Man. That's the uncle." "It's a very popular name, Molly." "Give me the name tag." She snatched it and scribbled over the label. "There. You're now Gerald, cousin from Ohio, here to see his favorite nephew." "I don't have a nephew." "Nobody has to know that." Bill sighed and adjusted his stolen binoculars. "Fine. And what about the presents? We've got to get them out without anyone noticing." "Easy. We wheel them out in that enormous wagon they're using as a cooler. Nobody looks twice at a wagon full of gifts and melting ice pops." "Brilliant," Bill whispered. "Absolutely foolproof." Across the lawn, a small voice shrieked, "THE PIÑATA'S OPEN!" Molly grabbed Bill's collar. "Go, go, go!" They sprinted from the hedge, straight into a stampede of sugar-crazed children, and Bill's clipboard went flying into the bouncy castle. "Gerald!" Molly hissed. "Smile!" "I'm smiling!" Bill yelped, as a toddler in a superhero cape bit him on the ankle.
created_at
"2026-10-08T08:28:05.025Z"
10/8/2026, 8:28:05 AM
model
"anthropic/claude-haiku-5.5-20261007"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
7282
moderation_latency
(null)
generation_time
7282
tokens_prompt
75
tokens_completion
633
native_tokens_prompt
95
native_tokens_completion
966
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
0.0004925
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791448085-VPSLPYdYpVCvBJYSBgMV"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791448085-mbmt5RE5qCWRiJ3fKQ0W"
upstream_id
"msg_011CfpTHjdL2fDm8M1UxJh6Y"
provider_responses
0
endpoint_id
"b6cdf493-3a61-441f-a134-e7944fddb980"
id
"msg_011CfpTHjdL2fDm8M1UxJh6Y"
is_byok
false
latency
740
model_permaslug
"anthropic/claude-haiku-5.5-20261007"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.0004925
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
426
1.78%
Dialogue to Total Word Ratio
Ratio: 58.97%, Deviation: 8.97%
neededClean
false
wordsTotal
429
wordsDialogue
253
0.8914%