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relay services offering grok-4.5 as low as 0.1 yuan per 1M tokens. Dug in — the trick is dead simple.At its core it's an account pool polling free grok accounts for their quota. No public number on free grok-4.5 limits, but what I found is ~1M tokens/day. In practice on pi it felt like less.Grok accounts don't currently care about IP, but I'd still route through a proxy pool — one account, one IP, safer. Those same IPs can also poll free models on opencode and mimo code (deepseek-v4-flash, mimo-v2.5-pro).I wired up a 20-IP pool. opencode + mimo code free models easily cover a general agent's daily tasks.For the account/proxy pool tooling, use 9router — it lets you bundle different models into one custom route. E.g. free models from different providers under different names, merged into a single "free" endpoint.Its token-saver is also great: cuts token use across tools, language, and code.9router seems to have a bug. Over public internet it fails constantly; local deploy or Tailscale works rock solid.IPs: webshare. Free tier gives 10 IPs, 1GB/month — more than enough if you budget it.9router: github.com/decolua/9routerFree proxies: webshare.io/?referral_code=pauzhzfueq8v
suite) pitting different agent tools against various models. Chart’s simple: higher on the Y = better success rate, further left on the X = cheaper. Pi with top models is sitting at 80%+ success while burning way fewer tokens than everything else. Been running Pi myself for a bit now — grok-4.5 + DeepSeek-v4 plus my own setup (main agent orchestrating, subagents running concurrent with isolated context). Barely any rework, stupid fast, finally stopped refreshing my phone waiting for results. Main agent + concurrent subagents is clearly the direction. Seeing more tools start shipping this workflow lately.
Won't refund the subscription either. I'm half convinced the appeal email is itself phishing, because I'm pretty sure they log the IP. DHH came to Shenzhen recently and showed how he uses Claude Code over there. That's the safest way now, honestly: run Claude Code on an overseas machine, connect through Tailscale, never use it locally. So I need to rent an overseas box with a residential IP, and register and log into Claude there.
Until late September it was the usual setup: parked in front of my laptop, terminal open, bossing pi around, fanning out subagents, then eyeballing diffs myself and filing the PR. Glued to the chair all day, every day. Late September I moved the whole thing to my phone, Hermes runs the show, pi takes the orders. My back is very grateful. Three weeks in, still no regrets. Stack: Hermes on flagship brains (gpt-6-astra / opus-5.5), pi on mid-tier (ds-v4.1-flash / sonnet / terra) with as few plugins as possible, the two talking over a2a. Hermes reads the issues, slices them into small tasks, spins up a worktree for each one, and dispatches a pi into it. When a pi finishes it pings Hermes, who decides: ship the PR or bounce it back for rework. I get back from a full day of being a tourist, or just wake up, and a dozen PRs are sitting there done. Pretty sweet. The catch is how black-box the whole thing is. My emotional arc has been a rerun of early vibe coding, except back then I at least read the diffs. Now even that goes to a flagship model. Boxes all the way down. If you don't have data anxiety, grok-bot and chatgpt-dot basically ship this out of the box, grok-cli and codex built in, native agent-to-agent comms. Downside: your code lives on their servers, everything's moderated, and one ban takes it all with it.
