Run: 2026-06-01-01KT1H2JWZR9CYTGDJSTMH88SP

Run Details

Duration:
21.5s
Cost:
$0.029640
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
98.71% Matches word count (details)
1.97% Dialogue to Total Word Ratio (details)
50.3390% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 70% 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

AI
Molly spread the blueprint across the table, smoothing out the wrinkles with the reverence of a surgeon. "Behold," she said. "The Henderson residence. Site of one Timmy Henderson's seventh birthday party." Bill leaned in, squinting. "Why is the blueprint drawn in crayon?" "Because I had to blend in at the reconnaissance. You try casing a joint surrounded by toddlers without arts and crafts." "Fair." He tapped the paper. "So what's the plan?" "We infiltrate during the magician's act. Nobody watches the present pile when there's a man pulling rabbits out of a hat." "I hate magicians." "Everyone hates magicians, Bill. That's why it's the perfect cover." She slid a photograph toward him. "This is our target. Mountain of gift-wrapped boxes, estimated value—" "Forty dollars?" "Don't be cynical. There could be a Nintendo in there." Bill picked up the photo and frowned. "Molly, that's a clown." "That's our second obstacle. Bingo the Clown. Hired security, basically. He never leaves the snack table." "So we neutralize the clown." "We do not neutralize the clown." Molly snatched the photo back. "We distract him. With cake." "What if he doesn't want cake?" "Everyone wants cake, Bill. That's basic human psychology." "Clowns aren't human. They're a separate, terrifying species." Molly pinched the bridge of her nose. "Can we please focus? Now, I'll go in disguised as Aunt Linda. Nobody knows what Aunt Linda looks like because she lives in Phoenix." "And me?" "You're the entertainment. Balloon animals." Bill stood up so fast his chair toppled. "Absolutely not. I don't do balloons." "You did three years for stealing balloons!" "That was helium tanks, and you know it." He crossed his arms. "There's a difference between grand theft inflation and twisting a poodle for a four-year-old." "It's a disguise!" "It's humiliating!" Molly took a deep breath. "Bill. Sweetheart. Light of my criminal career. We have rent due Friday and a fence who wants his cut. We are stealing presents from a child." "When you say it out loud it sounds bad." "It is bad. We're thieves. That's the job." She set a hand on his shoulder. "Now. Can you make a balloon dog or not?" He sighed. "I can make a balloon snake." "A snake is just a balloon you gave up on." "It's abstract art." "Fine. You're an abstract balloon artist." She rolled up the blueprint. "We go in at two o'clock. Magician starts the rabbit trick, clown gets distracted by cake, we grab the presents, out the back by the bouncy castle." "And if something goes wrong?" "What could possibly go wrong at a seven-year-old's birthday party?" Bill stared at her. "You said that before the petting zoo job." "The petting zoo job was a learning experience." "I still have the scar." "Goats are unpredictable, Bill. Nobody could have foreseen that." She extended her hand. "So. Are we doing this?" He looked at the crayon blueprint, then at her, then sighed and shook her hand. "For the record," he said, "if there's a piñata, I'm taking it." "Obviously. The candy's untraceable."
created_at"2026-06-01T12:03:29.317Z" 6/1/2026, 12:03:29 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1131
moderation_latency(null)
generation_time21482
tokens_prompt77
tokens_completion829
native_tokens_prompt93
native_tokens_completion1167
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.02964
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_011qatH9v2HvPTUUmWqAq2BF"
is_byokfalse
latency1131
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780315409-uf0tFXHXSWUypX4nx8RF"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780315409-aZlwnE3yRiIrnSatJmUj"
upstream_id"msg_011qatH9v2HvPTUUmWqAq2BF"
total_cost0.02964
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
98.71% Matches word count n/a
neededCleanfalse
words506
1.97% Dialogue to Total Word Ratio
Ratio: 78.86%, Deviation: 8.86%
neededCleanfalse
wordsTotal511
wordsDialogue403
50.3390%