Bug type

Regression (introduced by #32080)

Summary

The fix in #32080 strips unsupported JSON Schema keywords for xAI models, but the isXaiProvider() detection does not cover the Venice provider. When Venice serves xAI/Grok models (e.g. grok-4.1-fast), the provider string is venice — which contains neither xai nor x-ai — so the schema cleaning is skipped and requests fail with the same error.

[agent/embedded] embedded run agent end: ... error=Invalid arguments passed to the model.

Steps to reproduce

1. Configure OpenClaw with Venice as provider and a Grok model as primary:

"agents": {
  "defaults": {
    "model": {
      "primary": "venice/grok-4.1-fast"
    }
  }
}

2. Send any agent request.

Expected behavior

Request succeeds (same as with other models on Venice).

Actual behavior

Invalid arguments passed to the model — identical to the OpenRouter/xAI failure fixed in #32080.

Root cause

isXaiProvider() in src/agents/schema/clean-for-xai.ts only checks for:

• provider string containing xai or x-ai
• openrouter + model prefix x-ai/

It does not handle the case where Venice proxies xAI/Grok models. The model ID on Venice is just grok-4.1-fast (no x-ai/ prefix), so neither heuristic matches.

Suggested fix

Extend isXaiProvider() to also detect Venice + Grok model IDs, similar to the existing OpenRouter branch:

// Venice proxies xAI/Grok models; model IDs start with "grok-"
if (provider === "venice" && modelId?.toLowerCase().startsWith("grok-")) {
  return true;
}

OpenClaw version

2026.3.2 (main)

Related

• [Bug]: error when sending a request to x-ai/grok-4.1-fast via OpenRouter #32039 (original xAI/OpenRouter bug)
• fix(tools): strip xAI-unsupported JSON Schema keywords from tool definitions #32080 (partial fix — does not cover Venice)