Run: 2026-05-10-01KR90CBBNF18MSZK5VZ03Z13H

Run Details

Model:
Gemini 3.1 Flash Lite
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
615ms
Cost:
$0.000018
Provider:
Google AI Studio

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"2026-05-10T13:14:15.294Z" 5/10/2026, 1:14:15 PM
model"google/gemini-3.1-flash-lite-20260507"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency504
moderation_latency(null)
generation_time504
tokens_prompt75
tokens_completion1
native_tokens_prompt66
native_tokens_completion1
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"STOP"
service_tier"standard"
usage0.000018
router(null)
provider_responses
0
endpoint_id"237af107-d2e9-46c7-b146-c74d75980dee"
id"p4QAauWJHqH6qtsPgJyMmQQ"
is_byokfalse
latency504
model_permaslug"google/gemini-3.1-flash-lite-20260507"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1778418855-MlLuWKL9eyJuMyDXsa7K"
session_id(null)
api_type"completions"
id"gen-1778418855-2zbSXfpP53yrpBa41X3T"
upstream_id"p4QAauWJHqH6qtsPgJyMmQQ"
total_cost0.000018
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

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