CKEY AI TOOLS

AI model check

Compare the endpoint's answers with reference data to see whether the model behaves as published.

API key never stored Multi-dimension scoring Clear verdict

Check result RESULT

Tested endpointhttps://ckey.vn

Claimed modelclaude-opus-5

Compared againstclaude-opus-5, claude-opus-5.5, claude-sonnet-5, claude-sonnet-5.5

Verified at09/11/2026 18:42 (GMT+7)

API keyHidden for security

claude-opus-5 · LOW MATCH. Low similarity, below 60%.

26.5%similarity

claude-opus-5.5 · LOW MATCH. Low similarity, below 60%.

32.2%similarity

claude-sonnet-5 · LOW MATCH. Low similarity, below 60%.

29.6%similarity

claude-sonnet-5.5 · LOW MATCH. Low similarity, below 60%.

33.6%similarity

The result reflects similarity across the tested responses, not an absolute genuine/fake verdict.
Reports may be public; public catalog data is metadata and similarity is probabilistic, not proof of model identity.