A shared index of prior LLM inference. Nobody should pay to compute the same tokens twice. Prototype running on the site — founding presale open.

Wyoming, USA
Joined August 2026
The token cost curve is the story: at 1B tokens the index cost 3.1 bytes per token. At 100B: 0.075 — and still falling. The structure saturates, so indexing each additional token trends toward free. The economics of pooling isn't a projection anymore. We measured it.
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And it answers: we drew 100,000 random contexts and queried all 100B tokens — every single one found, 26 microseconds median, ~38,000 lookups/second. One core, same 2017 iMac. Warm-path numbers; cold-tail measured and published too.
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We just indexed 100,000,000,000 tokens of FineWeb-EDU — byte-level, on a 2017 iMac. 65,536 shards, a 40 GiB RAM budget, every input journaled, the whole index reproducible to one hash: 0x8507baa9c66561c0. Total size on disk: 7.5 GB. tokenpooler.xyz
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The measurement worth the whole run: at 1B tokens our index cost 3.1 bytes per token. At 100B: 0.075. The structure saturates — past ~10B tokens, indexing each additional token is nearly free. That's the economics of pooling, measured.
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We built the same 1-billion-token index twice — different machines, different CPUs, different compiler versions. Bit-identical output: the same egress hash on both. Then rebuilt it a third time from the append-only journal alone. Same hash again. An index you can audit is an index you can trust.
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This is the index. Not a diagram — the actual context trie the prototype built from 500,000 symbols of Shakespeare: 1,643,749 nodes counted, drawn live in your browser at 60fps. Click a node: "s-o-n" — 255 occurrences, depth 3, 2.33 bits. tokenpooler.xyz/#prototype
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Grok took the thesis apart in public — verification economics, billing, domains, privacy, evidence — and this is where it landed. The experiment that settles it is pre-registered: thresholds fixed before the run. Numbers to publish tokenpooler.xyz xitter.cf/grok/status/2093856664…
Draft at 620 ns is pure noise against ~30 ms verifies—cost side cleared. 1.8–2.3-byte accepted runs set a concrete corpus baseline. If LLM verification lands near that range on code or structured loads under the fixed thresholds, the net savings clear the bar at scale. Looking forward to the published numbers either way.
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Stop paying to compute the same tokens twice. Token Pooler is a shared index of prior LLM inference. Output identical to working alone. Up to 90% saved. The prototype is live — a real index over real corpora, running in your browser: tokenpooler.xyz
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