Modelsell
Model check
Claude / Anthropic-compatible APIs

Understand your model.Start with a check.

Check capabilities, performance and protocol behavior with your own API. Keep the results in a report you can revisit and download.

Connect your model

Your endpoint. Your key. Your check.

Anthropic Messages API. A /v1 suffix is accepted.

Used for this session only; excluded from reports.

Claude / Anthropic-compatible models. You can also enter a custom model name.

Up to 23 upstream requests. Up to 90 seconds per request and 10 minutes per run. Provider charges may apply.

Capabilities & protocol

Inspect responses, protocol behavior and token usage.

Performance & cache

Measure response speed and check cache consistency.

Reports to keep

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My checks
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Model capabilities

Explore the bigger model picture.

Browse published capability results alongside the checks you run yourself.