What it does

This repository is a consumer-report-style guide to “relay” API providers — middleman services that resell access to GPT, Claude, Gemini, and other models inside China. The maintainer evaluates each provider on stability, speed, model coverage, billing transparency, and whether they secretly swap in cheap domestic models (like GLM) for expensive foreign ones. Each review includes real per-million-token prices in RMB, minimum充值 amounts, and notes on invoice support.

The interesting bit

The author treats API resellers like a volatile commodity market: prices update fast, providers “run away” (跑路) with user funds, and some bill cache hits at 30% instead of the standard 10%. The README also doubles as a funnel for hvoy.ai, a live price-ranking site the author runs — the monitoring code is no longer open source.

Key highlights

• Reviews ~15 providers with specific RMB pricing (e.g., GPT-5.5 at ¥1 input / ¥6 output per million tokens)
• Warns against “water injection” (掺水) — substituting cheap models for advertised ones
• Flags hidden cost drivers: token counting methods, cache hit rates, and billing clarity
• Notes payment quirks: some take only crypto, some only QQ email, some issue invoices
• Includes a DIY alternative: buy a Turkey-region Apple ID, gift-card it, and use Codex directly

Caveats

• Prices are manually updated and explicitly noted as “changing too fast” — accuracy decays quickly
• Several reviews contain affiliate/tracking links (e.g., ?aff=gF1p, source=git)
• The associated hvoy.ai monitoring tool is closed-source; this repo is essentially static content

Verdict

Worth bookmarking if you’re a Chinese developer navigating the reseller gray market and want a sober, price-conscious starting point. Skip it if you already have clean direct API access — you’ll find more drama than utility here.