Provider matrix

This matrix describes built-in routing and wire adapters in the current source. It does not promise account entitlement, funding, or availability of every model documented by a provider.

Id	Adapter	Built-in API family	Credential	Catalog note
glm	OpenAI-compatible Chat	GLM standard Chat Completions	GLM_API_KEY	Versioned static official schema manifest; no guessed list-models call
anthropic	Anthropic Messages	Anthropic v1	ANTHROPIC_API_KEY	Availability depends on credential and endpoint behavior
openai	OpenAI Responses	OpenAI v1	OPENAI_API_KEY	Uses the Responses adapter
deepseek	OpenAI-compatible Chat	DeepSeek v1	DEEPSEEK_API_KEY	Provider-specific error profile
minimax	OpenAI-compatible Chat	MiniMax compatible root	MINIMAX_API_KEY	Provider-specific error profile
fireworks	OpenAI-compatible Chat	Fireworks inference v1	FIREWORKS_API_KEY	Provider-specific error profile

Default selection

The built-in provider default is glm. Its exact standard root has a source- versioned model enum whose documented default is glm-5.2. Iteron selects it only when the provider entry is usable; missing credentials keep the leaves disabled.

Availability states

The selection UI distinguishes usable, unavailable, disabled, and unknown evidence. In particular:

• schema or catalog presence is not account entitlement;
• a private deployment without a healthy default is not guessed;
• a compatible gateway without a model-list endpoint needs an operator manifest or explicit model;
• provider errors can update account or model health;
• a grey entry is intentionally not selectable.

Capability evidence

Reasoning effort, context limits, caching, and other model capabilities are attached only where the exact endpoint/model evidence supports them. A family neighbor does not inherit the limits documented for another model.

The catalog implementation is evolving. Use /model and /status as the runtime view, and report stale or contradictory provider evidence with a synthetic reproduction.