README: vision, the JIT-for-weights framing, roadmap, acknowledgements
- The vision: open the model up — run it, study it, improve it - The idea: explain the core algorithm as a JIT for weights — parameters as data staged across a heterogeneous hierarchy, learned from routing - What's next: active placement/scheduling research; Kimi K2, Qwen3 MoE, MiniMax on the model roadmap - Acknowledgements: Z.ai, Moonshot AI, Alibaba Qwen, MiniMax, Allen AI
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@@ -44,6 +44,16 @@ brightness is routing heat, and every expert routed in a turn flashes white. Hov
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as a 3-D galaxy — 13,260 characterised experts, 1,041 replicated specialists clustering by topic
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(poetry, law, Chinese, SQL…). Position is measured routing affinity, not a learned embedding. Drag to spin.</em></p>
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## The vision
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Frontier models should not be sealed inside datacenters. colibrì exists so that
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**anyone curious enough can open one up**: run a 744B-parameter mind on hardware
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you already own, watch every expert fire in real time, and change the code that
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does it. Not renting intelligence behind an API — *holding* it: probing it,
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measuring it, improving it. Every optimisation in this project started with
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someone measuring something on their own machine; the engine is deliberately
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small enough that the next one can come from you.
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## The idea
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A 744B Mixture-of-Experts model activates only ~40B parameters per token — and
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@@ -61,6 +71,18 @@ So the model doesn't need to *fit* in fast memory — it needs to be **placed**:
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at int4) live **on disk** (~370 GB) and are **streamed on demand**, with a
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per-layer LRU cache, a learned pinned hot-store, and an optional VRAM tier.
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Think of the core algorithm as **a JIT, but for weights**. A compiler JIT never
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compiles the whole program — it watches what actually runs and compiles the hot
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paths, just in time. colibrì makes the same bet about a 744B parameter space:
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parameters are not resident state to be held, they are **data to be staged**
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across a heterogeneous storage hierarchy (VRAM / RAM / NVMe), exactly when the
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router proves they are needed. Measured routing heat decides which experts earn
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which tier, the router runs a layer ahead so prefetch hides the staging latency,
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and — like a JIT — the engine learns your workload: the more you run, the hotter
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the right experts get. It works because routing has measurable structure (see
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the [expert atlas](https://github.com/JustVugg/colibri/issues/175)) — and
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structure is cacheable.
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The engine is a single C file (`c/glm.c`) plus small headers. No BLAS, no Python
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at runtime, no GPU required.
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@@ -204,6 +226,18 @@ install from the clone, not a standalone wheel).
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| Grammar-forced drafts (structured output) | [docs/grammar-draft.md](docs/grammar-draft.md) |
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| Environment variable inventory | [docs/ENVIRONMENT.md](docs/ENVIRONMENT.md) |
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## What's next
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- **Algorithmic research is active.** The current hierarchy is LRU + a learned
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pin set; the next step is under way — smarter placement and scheduling,
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overlap of CPU and GPU expert execution, and routing-aware speculation.
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Everything lands the way this project always works: measured, reviewed, and
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merged in the open.
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- **More open models.** The tiering algorithm is model-agnostic: any MoE with
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routed experts can be staged the same way. GLM-5.2 and OLMoE run today;
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support for more open-weight families — **Kimi K2** (Moonshot AI),
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**Qwen3 MoE** (Alibaba), **MiniMax** — is on the roadmap.
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## Supporting the project
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colibrì started as a one-person project on a 12-core laptop with 25 GB of RAM;
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@@ -244,6 +278,14 @@ The hummingbird weighs a few grams, hovers in place, and visits a thousand
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flowers a day. This engine keeps a 744-billion-parameter giant alive on
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hummingbird rations: 25 GB of RAM, twelve CPU cores, and a lot of disk patience.
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## Acknowledgements
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colibrì is an engine; the minds it runs are a gift. Thank you to the teams
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releasing frontier-class weights in the open — **Z.ai** (GLM), **Moonshot AI**
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(Kimi), **Alibaba Qwen**, **MiniMax**, and **Allen AI** (OLMoE) — and to every
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contributor who benchmarked, bisected, replicated an atlas run, or sent a patch.
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This project is proof of what open weights make possible.
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## License
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Apache 2.0. GLM-5.2 weights are released by Z.ai under MIT.
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