OpenAI runtimes and Codex auth

Naming map

Implicit agent runtime

When provider/model agentRuntime policy is unset or auto, OpenAI's provider-owned route policy chooses the implicit runtime from the effective endpoint and adapter:

Valid model-scoped params.fastMode / params.fast_mode, cutoff, and thinking values are typed agent-runtime controls, not authored provider request params. Affirmative reasoning support and native reasoning-effort metadata also preserve Codex selection. See Runtime selection for the supported capability values and the request overrides that remain protected.

An explicit agentRuntime.id: "openclaw" keeps a Codex-eligible route on OpenClaw. Explicit agentRuntime.id: "codex" requires a registered Codex harness; unsupported routes/auth fail closed, except that authored request overrides may use Codex's declared exact-request OpenClaw fallback before execution. Inspect the completed result's actual harness when a recipe depends on native execution. Runtime selection does not change credential type or billing: Platform API-key auth and ChatGPT/Codex subscription auth remain distinct.

openclaw doctor --fix migrates legacy codex/* and openai-codex/* model refs, legacy Codex auth profile ids, and legacy Codex auth-order entries to the canonical openai route. Migrated model refs receive model-scoped agentRuntime.id: "codex"; use auth.order.openai for new auth-order config.

Native Codex app-server auth

The native Codex app-server harness uses openai/* model refs when an eligible exact official HTTPS route selects it implicitly, or when provider/model agentRuntime.id: "codex" selects it explicitly. Its auth is still account-based. OpenClaw selects auth in this order:

1. Ordered OpenAI auth profiles for the agent, preferably under auth.order.openai. Run openclaw doctor --fix to migrate older legacy Codex auth profile ids and auth order.
2. The app-server's existing account, such as a local Codex CLI ChatGPT sign-in. For the default isolated agent home, OpenClaw bridges that native CLI account into the app-server through its login RPC; it does not share the CLI's config, plugins, or thread store.
3. For local stdio app-server launches only, and only when the app-server reports no account: CODEX_API_KEY, then OPENAI_API_KEY.

The default per-agent codex-home/auth.json is not a runtime auth store. If you copied or mounted Codex CLI credentials there, import them into the agent's OpenClaw auth store before starting a native Codex turn. Replace <agent-id> with the configured agent that owns this Codex home:

openclaw migrate plan codex --from <codex-home> --agent <agent-id> --include-secrets --item auth:openaiopenclaw migrate apply codex --from <codex-home> --agent <agent-id> --include-secrets --item auth:openai --yes

A local ChatGPT/Codex subscription sign-in is not replaced just because the gateway process also has OPENAI_API_KEY for direct OpenAI models or embeddings. The env API-key fallback applies only to the local stdio no-account path; it is never sent over WebSocket app-server connections. When a subscription-style Codex profile is selected, OpenClaw also keeps CODEX_API_KEY and OPENAI_API_KEY out of the spawned stdio app-server child and sends the selected credentials through the app-server login RPC instead.

When that subscription profile is blocked by a Codex usage limit, OpenClaw marks the profile blocked until Codex's advertised reset time and lets auth ordering rotate to the next openai:* profile, without changing the selected model or dropping out of the Codex harness. Once the reset time passes, the subscription profile is eligible again.