Run: 2026-05-29-01KSSK8VZRCJPCK9PC49KKS2WD

Run Details

Model:
Claude Opus 4.8 (Reasoning)
Test:
Data extraction
Scenario:
All valid emails
Duration:
3.6s
Cost:
$0.003990
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
Pass Contains a list of texts (details)

Model input

User/Human
Extract all valid email addresses from the text. Return them in a comma-separated list without spaces. Contact information: 1. John Doe - john.doe@example.com 2. Jane Smith - jane@smith-family.net 3. support@company.co.uk 4. info@subdomain.example.org 5. Invalid email: not.an.email.com 6. Another invalid: @missing-username.com

Model response

AI
john.doe@example.com,jane@smith-family.net,support@company.co.uk,info@subdomain.example.org
created_at"2026-05-29T10:07:56.929Z" 5/29/2026, 10:07:56 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2986
moderation_latency(null)
generation_time3548
tokens_prompt89
tokens_completion62
native_tokens_prompt133
native_tokens_completion133
native_tokens_completion_images(null)
native_tokens_reasoning39
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"end_turn"
service_tier"default"
usage0.00399
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01T8djCq1ZM4ydQNHNojMx6F"
is_byokfalse
latency1263
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780049276-IxhwW35iiAyEBr5y6KXQ"
session_id(null)
api_type"completions"
id"gen-1780049276-iazM78HJJHPaRPtiJoh6"
upstream_id"msg_01T8djCq1ZM4ydQNHNojMx6F"
total_cost0.00399
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
Pass Contains a list of texts
john.doe@example.com jane@smith-family.net support@company.co.uk info@subdomain.example.org
john.doe@example.comtrue
jane@smith-family.nettrue
support@company.co.uktrue
info@subdomain.example.orgtrue