为什么选择 Grok 4.3？
Grok 4.3 是目前实时性最高、性格最鲜明的 AI 模型。
- 实时数据接入：能够实时访问 X 平台（原 Twitter）的全量数据，了解全球正在发生的事。
- 更强的 Agent 能力：针对 Colossus 超算集群深度优化，具有极强的工具调用爆发力。
- 无审查/真实视角：倾向于提供更加直接、不做过度政治正确润色的回答。
Free Grok 4.3 API
Updated 8/20/2026
Real-time knowledge king with strong agentic tool calling optimized for superclusters.
About the Model
How to call Grok 4.3
curl
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."}]}'javascript
// 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);
},
};Compare Free Providers
The following platforms provide free access to Grok 4.3 through free tiers, trial credits, or daily quotas.
Frequently Asked Questions
Is Grok 4.3 free to use?
Yes. Grok 4.3 is available for free through 2 provider(s) listed below, with no purchase required.
What are the rate limits and quotas?
Free access varies by provider — Cloudflare Workers AI: paid; Vercel AI Gateway: Monthly Credits.
How do I get a free Grok 4.3 API key?
Sign up with Cloudflare Workers AI, then create an API key from your dashboard. See the provider details above for the exact steps.
Which providers offer Grok 4.3 for free?
Grok 4.3 is currently available for free via: Cloudflare Workers AI, Vercel AI Gateway.
Know another free provider for Grok 4.3?
Help the community by sharing other ways to access this model for free.