Run: 2026-09-23-01M37P26152BM7726ZKTSH61FJ

Run Details

Duration:
23.8s
Cost:
$0.042420
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
100.00% Dialogue to Total Word Ratio (details)
99.9904% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 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

AI
Molly spread the blueprints across the hood of the van. They were a birthday invitation with a map drawn in purple crayon. "Two o'clock," she said. "Timmy Henderson turns seven. Forty guests. Maybe sixty presents." Bill squinted at the drawing. "Why exactly is the bouncy castle labeled 'danger'?" "Because it is danger. Children in bouncy castles are basically feral." He nodded slowly, adjusting the balloon animals stuffed in his coat. They squeaked whenever he breathed, which undermined his menace. "And my disguise?" "You're Mister Giggles, the clown. I'm your assistant, Glitter." "I genuinely hate clowns." "Everyone hates clowns. That's why nobody looks at them directly." Bill considered this, then pulled a squeaky horn from his pocket and honked it. Somewhere down the street, a dog began to howl. "What if the kids recognize us? We did rob the Morrison bar mitzvah." "Bill, they were thirteen. These are seven. Seven-year-olds can't identify anyone. They think I'm a hundred." "You're forty-two." "Exactly. Also, I'm keeping the pony." Molly rolled up the invitation and tucked it into her tote bag. Bill honked the horn once more, and the dog howled back in solidarity. "Right," she said. "Nobody touches the cake. Ever."
created_at"2026-09-23T17:47:22.038Z" 9/23/2026, 5:47:22 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6968
moderation_latency(null)
generation_time23788
tokens_prompt75
tokens_completion597
native_tokens_prompt95
native_tokens_completion2102
native_tokens_completion_images(null)
native_tokens_reasoning1613
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"
usage0.04242
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790185642-cZ3Ia9irO4CMjJXDNrgS"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790185642-CjVZ0UVbqhJq2Y3dmexQ"
upstream_id"msg_011CfLnodUSZyp1WDTTSxDb5"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLnodUSZyp1WDTTSxDb5"
is_byokfalse
latency1734
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.04242
cache_discount(null)
upstream_inference_cost0
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
99.98% Matches word count n/a
neededCleanfalse
words198
100.00% Dialogue to Total Word Ratio
Ratio: 50.75%, Deviation: 0.75%
neededCleanfalse
wordsTotal201
wordsDialogue102
99.9904%