Baseten Model APIs provide hosted, OpenAI-compatible access to frontier models. The official external plugin uses authenticated discovery, so OpenClaw follows the complete model set enabled for your Baseten account. Its offline fallback contains every Model API available when this OpenClaw release was built.

Install plugin

openclaw plugins install @openclaw/baseten-provider
openclaw gateway restart

Getting started

openclaw onboard --auth-choice baseten-api-key

openclaw onboard --non-interactive \
  --auth-choice baseten-api-key \
  --baseten-api-key "$BASETEN_API_KEY"

export BASETEN_API_KEY=...

</CodeGroup>

With usable auth, the plugin requests `GET /v1/models` and lists every model returned for the account. Without auth, it stays offline and uses the bundled fallback.

Inkling

Thinking Machines Lab's Inkling is the default model. In OpenClaw it supports text and image input, tool calling, structured tool schemas, configurable reasoning effort, a 1.048M-token context window, and up to 32k output tokens:

{
  agents: {
    defaults: {
      model: { primary: "baseten/thinkingmachines/inkling" },
    },
  },
}

Use /model baseten/thinkingmachines/inkling to switch an existing chat.

Bundled fallback catalog

The authenticated live catalog is authoritative. These rows keep setup and model selection useful before discovery succeeds:

All bundled models support tool calling and reasoning. OpenClaw maps its thinking levels to models with native reasoning_effort. Baseten's opt-in GLM, Kimi, and Nemotron models default to thinking off; most expose a binary off/on control, while GLM 5.2 exposes off, high, and max. OpenClaw sends these choices through Baseten's chat_template_args.enable_thinking control and, for GLM 5.2, the validated top-level reasoning_effort parameter.

Manual config

Most setups only need the API key. To pin the provider explicitly:

{
  env: { BASETEN_API_KEY: "..." },
  agents: {
    defaults: {
      model: { primary: "baseten/thinkingmachines/inkling" },
    },
  },
  models: {
    mode: "merge",
    providers: {
      baseten: {
        baseUrl: "https://inference.baseten.co/v1",
        apiKey: "${BASETEN_API_KEY}",
        api: "openai-completions",
        models: [
          {
            id: "thinkingmachines/inkling",
            name: "Inkling",
            reasoning: true,
            input: ["text", "image"],
            contextWindow: 1048000,
            maxTokens: 32000,
            compat: {
              supportsStore: false,
              supportsDeveloperRole: false,
              supportsUsageInStreaming: true,
              supportsStrictMode: true,
              supportsTools: true,
              supportsReasoningEffort: true,
              supportedReasoningEfforts: ["none", "minimal", "low", "medium", "high", "xhigh"],
              reasoningEffortMap: {
                off: "none",
                none: "none",
                adaptive: "xhigh",
                max: "xhigh",
              },
              maxTokensField: "max_tokens",
            },
          },
        ],
      },
    },
  },
}

Related

Source: docs/providers/baseten.md