Release ChatWalaʻau v0.91.0 · motojinc25/chatwalaau

This release adds one new feature to ChatWalaʻau: the OpenAI (direct) provider.

Highlights

Use OpenAI's own public API as a third model provider. Alongside Azure OpenAI and Anthropic (Claude), you can now configure models from the direct OpenAI API. Set OPENAI_MODELS (comma-separated) and OPENAI_API_KEY, and the models appear in the same model selector and can be switched per turn.
API-key authentication, with an optional gateway override. The OpenAI public API authenticates by API key only. Set OPENAI_API_KEY; optionally set OPENAI_BASE_URL to point at an OpenAI-compatible gateway.
Reasoning models, identical experience to Azure OpenAI. v1 supports reasoning models (for example gpt-5.x / o-series). They behave exactly like Azure OpenAI reasoning models: the same per-message reasoning-effort and verbosity controls, hosted web search (country-scoped via WEB_SEARCH_COUNTRY), structured output (JSON / JSON Schema), and background responses. Non-reasoning models (gpt-4o / gpt-4.1) are planned for a later release.
Predictable model ordering and unique ids. The model selector lists Azure first, then Anthropic, then OpenAI, and the default model is unchanged. Model ids must be unique across AZURE_OPENAI_MODELS, ANTHROPIC_MODELS, and OPENAI_MODELS; a collision is reported at startup.
Clearer billing errors. When a provider rejects a request because the account is out of credits or quota, the on-screen guidance now names OpenAI billing alongside Anthropic Plans & Billing and the Azure OpenAI quota, so it is obvious where to add credits.

This release includes implementation work from:

No breaking changes. The OpenAI provider is additive. With OPENAI_MODELS unset (the default), the new provider is inert and existing Azure-only and Anthropic deployments behave byte-for-byte identically to v0.90.1 -- no removed or renamed endpoints, settings, or environment variables, no data migration, and no new dependency.
Upgrade note (additive, non-breaking): three new optional environment variables (OPENAI_MODELS, OPENAI_API_KEY, OPENAI_BASE_URL). No operator action is required to upgrade.
Internal design management content and architecture control artifacts are intentionally omitted from this release note.

See the repository README for setup and usage instructions.