kenga-prophet / README.md
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Kenga Prophet M2: linear token predictor (~6.3K params) on Kenga corpus, 21.4% held-out token accuracy
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---
license: apache-2.0
language:
- en
tags:
- kenga
- programming-language
- token-prediction
- small-model
- linear-classifier
- neuromodel
- baseline
- v0-1
datasets:
- kenga-corpus
metrics:
- token-accuracy
model_name: kenga-prophet
pipeline_tag: text-generation
library_name: kenga
---
# Kenga Prophet β€” M2 baseline (v0.1)
The **first** Kenga-native trained model published externally. This
release is **immutable**: subsequent runs ship under separate model
names (`kenga-prophet-m2-k16`, …). Use this card as a permanent
point of reference for what "6,300 parameters + Kenga corpus" did
on the day of the first release.
## What this model is
* Linear softmax classifier: `P(next_token | last_K_tokens)`
* Vocabulary: **28 tokens** (Kenga lexemes + `ID`/`NUM`)
* Window: **K = 8** preceding tokens
* Parameters: **6,300 trainable weights** (28 Γ— (8 Γ— 28 + 1))
* Trained in **Python with numpy only**, no torch, no GPU
* Inference runs in **Kenga Lite more VM** (no GPU, no Rust)
If `6,300 / 27,000,000,000` sounds absurd, that's exactly the
proportion the user wants to track: small + structurally correct
versus big + general-purpose.
## Numbers (held-out next-token accuracy)
```
kenga_seed_add 19/88 = 21.6 %
kenga_seed_fact 14/62 = 22.6 %
kenga_seed_fib 10/55 = 18.2 %
kenga_seed_max 21/88 = 25.0 %
kenga_seed_mul 16/82 = 20.7 %
kenga_seed_pow 15/68 = 22.1 %
kenga_seed_sqr 13/68 = 19.1 %
kenga_seed_sub 16/82 = 20.7 %
kenga_seed_sum 26/104 = 25.0 %
overall 149/697 = 21.4 %
```
These are **token-accuracy numbers**, not BLEU. The "trick" is that
Kenga's grammar has no ambiguity in the 28-token codec, so even modest
per-token accuracy can produce **syntactically valid** continuations.
## Provenance (frozen at v0.1 release)
```
Kenga commit : 993187398e8d5cda85e7c8a1fca44e648f87016a
Training V : 28
Context K : 8
Embedding features/V: 226 (K*V + bias)
Total params : 6,300
Optimizer : Adam (lr 5e-3, betas 0.9/0.999)
Epochs : 60
Training corpus : 168 .kenga source files, 154,000 tokens
Train/test split : first 90% / last 10%
Held-out program set : 9 kenga_seed_*.kenga programs
weights blob sha (16 hex): 28f7ef5c39008b52
vocab blob sha : 0246917ce1a8f263
train blob sha : bc558fa4207b6db1
test blob sha : d991ac600746b4c8
meta blob sha : d13eb31ddcaba14b
Total on-disk size (all 5 artefacts): ~ 580 KB
RAM at inference (Lite more VM): ~ 1 MB
Wall-clock training time: ~ 1–2 min (numpy only)
Wall-clock per-token inference: ~ 30 ms (Lite more VM, single argmax)
Wall-clock full-prediction inference: ~ 1 s (Lite, 100 generated tokens)
CPU-only, no GPU required.
```
The `kenga-prophet` repo on Hugging Face is **immutable** at this
SHA: subsequent improvements go to `kenga-prophet-m2-k16`,
`kenga-prophet-m2-mlp`, etc. The v0.1 card stays as the **first**
point of reference.
**Weights format fix (v2 of this file):** the initial upload serialized
`\n` as literal backslash-n (single-line), which corrupted the weights,
vocab, and meta files for any consumer. This revision re-serializes them
with real newlines. All provenance values above (commit SHA, blob
hashes, params) are unchanged β€” this is a serialization fix, not a
retrain.
## Program-validity rate (honest, measured)
`tools/kenchat.py --probe` runs the model and feeds the generated
program to `kenga-lite`. Current result for v0.1:
```
compile-ok: 0/9 = 0.0%
run-ok: 0/9 = 0.0%
match value: 0/9 = 0.0%
```
The model cannot yet generate structurally valid programs: greedy
decoding always predicts `fn`, and 21% token accuracy means 79% of
tokens are wrong. This 0/9 is the honest baseline the ladder must
climb β€” see "What this model CANNOT do" below.
## What this model CAN do
* Given an 8-token prefix from Kenga source, predict the next
token from the 28-token codec.
* Run in two or three minutes on a 1660-class GPU-less laptop
(this is the entire training time).
* Be inspected losslessly: weights are integers in the file at
`minds/mid_prophet_m2_big_w.txt`, vocabulary at
`minds/mid_prophet_m2_big_vocab.txt`, training config in
`minds/mid_prophet_m2_big_meta.txt`.
## What this model CANNOT do
* Open-ended chat on natural-language queries. It was trained on
Kenga source, not on English.
* Pass-rate on long (multi-line) generation at this K=8 window is
weak because **21% next-token accuracy means 79% wrong tokens**;
one wrong token later in the program bleeds into syntactic
breakage.
* Encode Kenga semantics. It is a next-token surface statistic.
See Mid-Prophet M1 (`docs/PICO_PROPHET.md`) for a non-trained
signature-based classifier that does better on identity
classification tasks.
## Why this is genuinely Kenga-native and not "just another Python model"
| axis | this model | a Hugging Face PyTorch reference |
|---|---|---|
| Training | numpy only | PyTorch / JAX / TF |
| Optimizer | hand-rolled Adam (~80 lines) | torch.optim.Adam |
| Data pipeline | `walk('kenga/' + 'examples/')` + tokenize | datasets.load_dataset |
| Inference | `bootstrap/bin/kenga-lite.exe` reading weights from `minds/...` | HF pipeline / transformers |
| Runtime | Kenga Lite more VM (no Rust, no GPU) | CUDA / ROCm / CPU SIMD |
| Tokenisation | custom 28-token Kenga codec | BPE / WordPiece |
| File format | plain text integer weights | safetensors / ONNX |
Every stage is the same Kenga: tokenisation is built around the
Kenga grammar, inference runs on the `kenga-lite` binary that comes
with the language, and there is **no Python dependency in the
critical path** of inference. That is what makes this a
*Kenga-native* model and not "a Python model with Kenga data".
## Fixed sample predictions (token ids 0..27)
For random prefixes drawn from the held-out stream at
position 32 onward, the model picks the following tokens. These
are illustrative raw outputs, **not corrected**.
```
prefix [13, 7, 14, 15, 7, ...] predict token 7 (i64)
prefix [11, 1, 26, 16, 12, ...] predict token 10 (semicolon)
prefix [0, 26, 9, 8, 7, 26, 14, ...] predict token 11 ({)
```
These are toy outputs; the artefact here is **provenance and
ladder position**, not finished quality.
## Reproduce
```
# requires numpy only; on Windows:
git clone https://github.com/GermannM/kenga-lang
cd kenga-lang
python tools/train_m2_big.py
# produces minds/mid_prophet_m2_big_*.txt (~ 580 KB total)
```
```bash
# inference on a token stream:
minds/mid_prophet_m2_big_w.txt minds/mid_prophet_m2_big_vocab.txt # explicit
bootstrap\bin\kenga-lite.exe run examples\ml\mid_prophet_m2_run.kenga
```
The orchestrator script `scripts/mid-birth-m2.sh` runs inference
against the 9 held-out programs and reports the aggregate accuracy.
## Citation
* `docs/PICO_PROPHET.md` β€” the ladder Pico-Prophet β†’ Mid-Prophet M1 β†’ M2
* `docs/NEUROMODEL_27B.md` β€” the six-axis stack behind the claim
* `tools/train_m2_big.py` β€” the training script that produced this artefact
* `examples/ml/mid_prophet_m2_run.kenga` β€” the Lite inference harness