β
Clarus
Checker
Leaderboard
News
RU
Endpoint Configuration
API Base URL
With or without /v1 β both work the same
API Key
π
Key is used only for this request and never stored
Model
claude-opus-4-8
claude-opus-4-7
claude-opus-4-6
claude-sonnet-4-6
claude-haiku-4-5
Fetch
API Format
Anthropic (native)
OpenAI-compatible
Expected Model
Auto
Opus 4.8
Opus 4.7
Opus 4.6
Sonnet 4.6
Check Mode
Full (15 probes)
Quick (core only)
Running Probes
Startingβ¦
0%
? UNCERTAIN
β
Share this result
Substitution Risk
β
Behavioral Score
β
Confidence
β
Signals
Probe Results
Core Probes
Capability Probes