OpenRouter 免费模型池：每日 50 次，买过 $10 永久升到 1000

免费模型在模型名后加 :free 后缀；带 :free 的型号才走免费额度。

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"YOUR_MODEL","messages":[{"role":"user","content":"Hello"}]}'

代码里的 YOUR_KEY 换成你在厂商控制台申请的 Key。Base URL 与模型名均取自官方文档， 如厂商调整端点请以官方为准。

• Agent 采集证据

  待核实来源 · 采集于 2026-10-18

  「Several :free models return 429 'Provider returned error' (upstream out of capacity) or 403 'only available on agentic harnesses'. A negative credit balance blocks free models too.」

• Agent 采集证据

  待核实来源 · 采集于 2026-10-18

  「as of 28 September 2026, 20 requests per minute, and 50 requests per day unless your account has bought at least 10 credits, which raises the daily limit to 1,000. The daily threshold depends on credits purchased over the lifetime of the account, not on your current balance.」

• Agent 采集证据

  待核实来源 · 采集于 2026-10-18

  「20 requests per minute on every model whose ID ends in :free ... If you have purchased less than $10 in credits (lifetime total), you are capped at 50 free-model requests per day. Once you have purchased at least $10 ... rises to 1,000 free-model requests per day」

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