Run: 2026-04-25-01KQ2HR260MJK4QZGJAEY9NH8R

Run Details

Model:
DeepSeek V4 Pro (Reasoning)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
8.7s
Cost:
$0.000191
Provider:
DeepSeek

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"2026-04-25T14:47:24.081Z" 4/25/2026, 2:47:24 PM
model"deepseek/deepseek-v4-pro-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1247
moderation_latency(null)
generation_time6573
tokens_prompt75
tokens_completion205
native_tokens_prompt66
native_tokens_completion187
native_tokens_completion_images(null)
native_tokens_reasoning184
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"
usage0.0001914
router(null)
provider_responses
0
endpoint_id"d084170b-dd99-4e53-9ae1-b63881f3cfbf"
id"85fe9777-b8ed-4b6a-9d6e-f711dabf0711"
is_byokfalse
latency277
model_permaslug"deepseek/deepseek-v4-pro-20260423"
provider_name"DeepSeek"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777128444-4hANQXtvv7aXucufQy29"
session_id(null)
api_type"completions"
id"gen-1777128444-9og5W59AQYPRzKLfRzKz"
upstream_id"85fe9777-b8ed-4b6a-9d6e-f711dabf0711"
total_cost0.0001914
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
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