Run: 2026-02-19-01KHVP53GQG408Y7B6ANE6PFB3

Run Details

Model:
Gemini 3.1 Pro (Preview)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
4.7s
Cost:
$0.003492
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"2026-02-19T19:31:13.401Z" 2/19/2026, 7:31:13 PM
model"google/gemini-3.1-pro-preview-20260219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2650
moderation_latency(null)
generation_time4598
tokens_prompt75
tokens_completion73
native_tokens_prompt66
native_tokens_completion280
native_tokens_completion_images0
native_tokens_reasoning279
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"STOP"
usage0.003492
router(null)
provider_responses
0
endpoint_id"2abf5677-0826-45d9-8470-3d62c31d54a1"
is_byokfalse
latency2650
model_permaslug"google/gemini-3.1-pro-preview-20260219"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771529473-W4S5qQiSqr9vq5g3NQBf"
upstream_id(null)
total_cost0.003492
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

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