Paid (Cloudflare Unified Billing): Grok 4.3 keyless via Cloudflare — prepay credits, billed at xAI pass-through rates, no markup. For free, use Vercel.
Grok 4.3 是 xAI 当前的旗舰文本模型，主打实时性与 agentic 能力。
可在 Vercel（每月 $5 免 Key 额度）免费调用；Cloudflare 免 Key 但付费（AI Gateway 统一计费，按 xAI 原价透传、需先充值）。
Grok 经 Cloudflare AI Gateway 的统一计费（Unified Billing）扣费：先在 Cloudflare 后台充值（充值有 5% 手续费），再按 xAI 原价透传、无加价计费，无需单独的 xAI Key。这些第三方模型没有免费额度（Cloudflare 的免费 Neurons 只对 @cf/ 模型有效）。
好处：一张账单、不用各家 Key、可设花费上限、全球边缘。想免费用 Grok，请走 Vercel（每月 $5 免 Key 额度）。
Pick a model, paste your own free key, and run. Your key is sent once to call the provider and never stored on our servers.
Pick a model, paste your own free key, and run. Your key is sent once to call the provider and never stored on our servers.
curl https://api.cloudflare.com/client/v4/accounts/$CF_ACCOUNT_ID/ai/run/xai/grok-4.3 \
-H "Authorization: Bearer $CF_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{"messages":[{"role":"user","content":"Explain black holes in one sentence."}]}'// Cloudflare Worker: no extra key/env; Grok is billed directly by Cloudflare
export default {
async fetch(request, env) {
const res = await env.AI.run('xai/grok-4.3', {
messages: [{ role: 'user', content: 'Explain black holes in one sentence.' }],
});
return Response.json(res);
},
};