docs: add LLM provider documentation with pricing details

Add comprehensive documentation for budget-friendly LLM providers:
- Z.ai coding plans (Lite, Pro, Max tiers)
- OpenRouter free tier limits and pricing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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2026-03-25 21:19:57 +07:00
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# penny-pincher-provider # Penny-Pincher Provider
Penny-Pincher Provider, list of awesome cheap (or almost free) LLM provider that suitable for people who unwilling to pay for AI
Penny-Pincher Provider, list of awesome cheap (or almost free) LLM provider that suitable for people who unwilling to pay for AI.
*If you find this helpful, you can support me by donate or just register with my referral link. Thank you*
## Providers support coding plans
These provider provide a coding plan subscription, you can pre-pay a fee each month, then use their LLM api with a limit
### [Z.ai](https://z.ai/subscribe)
Offer 3 plans:
1. Lite: 3x usage of the Claude Pro plan
2. Pro: 5x Lite plan usage
3. Max: 4x Pro plan usage
*Prices may change vary so I don't include here*
Source: https://z.ai/subscribe [^z.ai]
Homepage: https://docs.z.ai/devpack/overview
My referral:
>🚀 You've been invited to join the GLM Coding Plan! Enjoy full support for Claude Code, Cline, and 20+ top coding tools — starting at just $10/month. Subscribe now and grab the limited-time deal! Link https://z.ai/subscribe?ic=PLKIAYEIPW
[^z.ai]: Check at Mar 25 2026
## Free providers
### [OpenRouter](https://openrouter.ai)
> Free usage limits: If youre using a free model variant (with an ID ending in :free), you can make up to 20 requests per minute. The following per-day limits apply:
> - If you have purchased less than 10 credits, youre limited to 50 :free model requests per day.
> - If you purchase at least 10 credits, your daily limit is increased to 1000 :free model requests per day.
Source: https://openrouter.ai/docs/api/reference/limits [^openrouter]
[^openrouter]: Check at Mar 25 2026
Homepage: https://openrouter.ai