Run: 2026-03-18-01KM0A45HJJG8QBYBF71Q1YVYQ

Run Details

Model:
GPT-5.4 Nano (Reasoning)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
2.8s
Cost:
$0.000125
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
Pass Matches text (details)
Pass Matches Regex (details)
no eval Overall

Model input

User/Human
What instrument does Lucy play based on the following text? Only return the instrument, nothing else. In the school band, there are four instruments: drums, bass, flute, trumped. John plays the drums, Mary plays the flute, and Pete plays the trumpet. Lucy doesn't play a wind instrument.

Model response

AI
bass
created_at"2026-03-18T11:08:35.773Z" 3/18/2026, 11:08:35 AM
model"openai/gpt-5.4-nano-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2697
moderation_latency(null)
generation_time2726
tokens_prompt75
tokens_completion105
native_tokens_prompt67
native_tokens_completion89
native_tokens_completion_images0
native_tokens_reasoning82
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00012465
router(null)
provider_responses
0
endpoint_id"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id"resp_042311485e66bd3d0169ba87b3d7248196941741b97e90bb91"
is_byokfalse
latency209
model_permaslug"openai/gpt-5.4-nano-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773832115-5EUwyxCknC4Kj4e5iel3"
upstream_id"resp_042311485e66bd3d0169ba87b3d7248196941741b97e90bb91"
total_cost0.00012465
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case insensitive: bass
 n/a
Pass Matches Regex
/\bbass\b/i
 n/a
no eval