pentect pi --model openai/gpt-5

For a permanent Pi integration, install the JavaScript extension once:

pi install npm:@pentect/pi

Then select its protected provider:

pi --model pentect/gpt-5

For one session without installing it:

pi -e npm:@pentect/pi --model pentect/gpt-5

pentect pi protects that launch only. The npm package registers a normal Pi provider and starts the same local Pentect gateway for each Pi session. Neither method installs prompt hooks.

Normal Pi arguments pass through:

pentect pi --model openai/gpt-5 -p "Review this project"

Chat Completions is the default. Responses can be selected explicitly:

pentect pi --api responses --model gpt-5

With the extension, set PENTECT_PI_API=responses and PENTECT_PI_MODEL=gpt-5 before Pi starts, then select pentect/gpt-5.

If a custom model has different limits, set PENTECT_PI_CONTEXT_WINDOW and PENTECT_PI_MAX_TOKENS. Use PENTECT_PI_INPUTS=text for a text-only model and PENTECT_PI_REASONING=true or false when API type alone cannot describe it. Pentect rejects invalid values instead of telling Pi the wrong capabilities.

Custom gateways

Custom and local providers can be reached through an OpenAI-compatible gateway such as Bifrost:

pentect pi --model anthropic/claude-sonnet \
  --upstream http://127.0.0.1:8080/openai/v1

Pentect does not save the upstream key in Pi settings. See Custom upstreams for credentials and endpoint details.