Model

Claude Opus 4.6

Test

Data extraction

Scenario

Contextual pronoun

Run ID

2026-02-08-01KGYY083CGYE63P7B3XZJ22SA

Model input

User/Human
Who does "he" refer to in the last sentence? Only return the name. Tom and Jerry were playing in the yard. Spike, the dog, was watching them from his kennel. Suddenly, he started barking loudly.

Model response

AI
Spike
created_at"2026-02-08T15:30:37.414862+00:00" Sunday, February 8th, 2026 at 3:30:37 PM GMT+00:00
model"anthropic/claude-4.6-opus-20260205" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1893
moderation_latency169
generation_time1946
tokens_prompt45
tokens_completion1
native_tokens_prompt58
native_tokens_completion5
native_tokens_completion_images(null)
native_tokens_reasoning0
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" 
usage0.000415
router(null)
provider_responses
0
status(null)
is_byokfalse
latency10051
endpoint_id"c926c048-563e-44b0-8434-95965bee924c" 
provider_name"Anthropic" 
model_permaslug"anthropic/claude-4.6-opus-20260205" 
1
id"67bda842-530f-48d2-96de-b51b78d330c0" 
status200
is_byokfalse
latency1892
endpoint_id"a8708fb9-08ea-43bb-a3b1-165c87ef09df" 
provider_name"Amazon Bedrock" 
model_permaslug"anthropic/claude-4.6-opus-20260205" 
api_type"completions" 
id"gen-1770564624-KC15AqB70H0rQgZL7P5h" 
upstream_id"67bda842-530f-48d2-96de-b51b78d330c0" 
total_cost0.000415
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock" 

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case sensitive: Spike
 n/a
Pass Matches Regex
/\bSpike\b/
 n/a
100.0000%