Run: 2026-04-25-01KQ2HBQ05V5Q3ZE3BKS8TZ54J

Run Details

Model:
DeepSeek V4 Flash (Reasoning)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
3.0s
Cost:
$0.000051
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"2026-04-25T14:40:37.386Z" 4/25/2026, 2:40:37 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency542
moderation_latency(null)
generation_time2463
tokens_prompt75
tokens_completion163
native_tokens_prompt66
native_tokens_completion149
native_tokens_completion_images(null)
native_tokens_reasoning146
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"
usage0.00005096
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"88d060f3-7ef6-42f0-bfcd-c186351a4987"
is_byokfalse
latency290
model_permaslug"deepseek/deepseek-v4-flash-20260423"
provider_name"DeepSeek"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777128037-KT6nRXCYX5CUFXwd0wB6"
session_id(null)
api_type"completions"
id"gen-1777128037-ncsrPACEHcLWYuvWFrZI"
upstream_id"88d060f3-7ef6-42f0-bfcd-c186351a4987"
total_cost0.00005096
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