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Antaeus v0.4.0 adds the hosted Drex evaluator

Evaluate semantic policies through the Drex API with System One adapter 0.3.0 and provider-aware retry waits.

By AntaeusPublished

v0.4.0 released .

Antaeus v0.4.0 adds the hosted Drex API by Nace.AI as a System One provider. This gives the CLI a semantic evaluation route that does not require running a model server yourself.

Configure the provider explicitly

Provider drex is available in System One adapter 0.3.0. It requires the configured Drex endpoint and a provider credential. The adapter sends policy conditions and unredacted input to Nace.AI; review the provider’s terms before sending personal or confidential data.

The profile runner now respects provider-required retry waits. A retry that cannot start before the total deadline is skipped so an eligible fallback can use the remaining time. Existing adapter versions stay installed.

Quality on policy tasks had not been measured on a published evaluation set at release. The new provider does not establish a moderation accuracy guarantee.

Read the v0.4.0 release notes and example evaluator profile. See Open source for the engine’s current installation paths.