Run: 2026-04-24-01KQ0NTDJCHAFG3K0MWEDZD37J

Run Details

Model:
GPT-5.5
Duration:
8.1s
Cost:
$0.009300
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
99.98% Dialogue to Total Word Ratio (details)
99.9795% 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 crouched behind the hedge, peering at the backyard glittering with balloons, bunting, and a suspiciously heroic piñata. Bill unfolded a crayon-drawn map he’d stolen from the fridge invitation. “That’s the gift table,” Molly whispered. “It’s also guarded by a magician,” Bill said. “Never trust a man with doves in his sleeves.” “He’s doing balloon animals.” “That’s how they start.” Inside, children shrieked around a cake shaped like a dragon. Molly adjusted her party hat, which read BIRTHDAY LEGEND. “We go in smiling,” she said. “You distract the adults.” “With what?” “Your face. It raises questions.” Bill frowned. “Rude, but usable.” Molly pointed to a tower of wrapped boxes. “We grab the presents, switch them with empty decoys, then escape through the bouncy castle.” “The bouncy castle is not an exit.” “It is if you believe.” A small girl appeared at the hedge, holding a juice box like a detective’s badge. “Are you pirates?” she asked. Bill straightened. “Entertainment subcontractors.” “Can you juggle?” Molly elbowed him. “He can emotionally juggle.” The girl considered this. “Mom! The weird pirates are here!” Bill sighed. “Abort?” Molly watched six parents turn toward them. “No,” she said. “New plan. We steal cake.”
created_at"2026-04-24T21:20:04.692Z" 4/24/2026, 9:20:04 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1202
moderation_latency(null)
generation_time7884
tokens_prompt77
tokens_completion384
native_tokens_prompt66
native_tokens_completion299
native_tokens_completion_images0
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"completed"
usage0.0093
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_041eca076ce9aec70169ebde84d1a48190bd07cc79a3316e9f"
is_byokfalse
latency283
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777065604-27pYoBrcs8rngtm9Bb8h"
session_id(null)
api_type"completions"
id"gen-1777065604-qFDHrH7X1f0xB2Cs6jGi"
upstream_id"resp_041eca076ce9aec70169ebde84d1a48190bd07cc79a3316e9f"
total_cost0.0093
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.98% Matches word count n/a
neededCleanfalse
words198
99.98% Dialogue to Total Word Ratio
Ratio: 48.74%, Deviation: 1.26%
neededCleanfalse
wordsTotal199
wordsDialogue97
99.9795%