GRT-30M-Curriculum: Multi-Round Symplectic Curriculum (MatterWaveAI/grt-30m-curriculum)

Multi-Round Symplectic Curriculum Release: Starting from the exact same 29.3M-parameter (9.74M non-embedding backbone across 12 rotational blocks) checkpoint as MatterWaveAI/grt-30m, MatterWaveAI/grt-30m-curriculum applies multi-round curriculum optimization with HuygensSymplecticAdam. Across the 9-task SLM-Bench multiple-choice suite (13,144 held-out examples), macro-average accuracy rises from 39.61% (PairAdam NeurIPS Submission) β†’ 43.87% (Single-Pass HuygensSymplecticAdam) β†’ 47.16% (Multi-Round Curriculum, +7.55%), while GSM8K 4-way numerical verification reaches 99.20% (PPL = 7.60, down 3.68Γ— from 27.99).

Model Details

Property Value
Architecture GRTForCausalLM (model_type: "grt", grt30m_kd)
Training paradigm Knowledge distillation from Qwen 3
Total stored parameters 29,305,498 (29.31M)
Non-embedding backbone parameters 9,740,197 (9.74M across 12 blocks)
Dense-equivalent parameters 55,680,446 (55.68M)
hidden_size (d_model) 256
num_hidden_layers (n_blocks) 12
num_attention_heads (n_heads) 4 (head_dim = 64)
intermediate_size (d_ff) 1,024
n_qkv_rotations / n_mixer_rotations / ffn_n_rotations 11 / 1 / 21
Vocabulary 151,669 (Qwen 3 BPE, tied polar cosine head)
Context length (max_position_embeddings) 2,048
Weight files model.safetensors (116 MB), grt-30m-f32.gguf (340 MB)

Because grt-30m shares the full 151,669-token Qwen 3 vocabulary at hidden_size = 256 for direct token-aligned distillation from Qwen 3, the tied polar embedding table (phase_angles [151669, 128] + log_magnitude [151669]) accounts for 19.57M parameters (66.8% of stored weights), leaving 9.74M stored parameters for the 12-layer rotational transformer backbone.


24-Hour Qwen 3 Distillation Summary

Metric Value
Teacher family / Tokenizer Qwen 3 (151,669-token Qwen 3 BPE vocabulary)
Student config grt30m_kd (d_model = 256, 12 rotational blocks, 9.74M non-embedding params)
Training corpus mix fineweb-edu (45%), cosmopedia-v2 (20%), wikipedia (15%), finemath (12%), stack-edu (8%)
Hardware 8x NVIDIA A100-SXM4-80GB (DDP + Fused CUDA Givens Kernels)
Wall-clock duration 24.0 hours (86,969s)
Tokens trained 10,789,404,672 (10.79B tokens, 20,580 steps)
Global batch size 524,288 tokens/step (micro_batch = 32, grad_accum = 1, seq_len = 2048, 8 GPUs)
Sustained throughput 123,900 tok/s (~15,490 tok/s/GPU, zero NaNs or gradient spikes)
Optimizer PairAdam (factored second moments for 2D coupling matrices + angular step clamping)
Learning rate Peak 1e-3, WSD schedule (checkpoint-20000 saved at 20,000 / 57,220 steps)
Final validation loss / PPL (FineWeb-Edu) val_loss = 4.4776 / val_ppl = 88.02 (top-1 token acc = 27.20%)

4-Backend Exact Greedy Generation Parity

model.safetensors (transformers) and grt-30m-f32.gguf (llama.cpp) produce identical token-for-token greedy continuations (temperature = 0, 16 new tokens) across all four supported backends on AMD Strix Halo (gfx1151):

  • PyTorch ROCm (gfx1151, fused HIP kernels)
  • llama.cpp CPU (x86_64 AVX2)
  • llama.cpp Vulkan (RADV gfx1151)
  • llama.cpp ROCm (HIP gfx1151)
Prompt Greedy continuation (16 tokens, identical on all 4 backends)
The capital of France is The capital of France is the first to be the first to be the first to be the first to be
Once upon a time Once upon a time, you might be wondering what exactly is the way to do with the right point
In the beginning In the beginning of the world, the world is the most common form of the world. The

Benchmarks: NeurIPS Submission (PairAdam) β†’ Single-Pass HuygensSymplecticAdam β†’ Multi-Round Curriculum (grt-30m-curriculum)

Evaluated across the 10-task SLM-Bench small-language-model suite (training/slm_bench.py / grt-slm-bench) starting from the exact same 29.3M-parameter (9.74M non-embedding) checkpoint:

1. Multiple-Choice Accuracy (9 Core SLM-Bench Tasks, 13,144 Held-Out Examples)

Task (SLM-Bench) Split (n) Random Zero-Shot NeurIPS Baseline (PairAdam) Single-Pass (HuygensSymplectic) Multi-Round Curriculum Total Gain (Curriculum vs. PairAdam)
BoolQ (google/boolq) val (3,270) 50.00% 51.41% 60.55% 62.23% 64.43% +3.88% (+2.20% vs. Single-Pass)
ARC-Easy (allenai/ai2_arc) test (2,376) 25.00% 29.59% 28.96% 36.32% 40.19% +11.23% (+3.87% vs. Single-Pass)
ARC-Challenge (allenai/ai2_arc) test (1,172) 25.00% 20.82% 23.55% 25.68% 29.69% +6.14% (+4.01% vs. Single-Pass)
OpenBookQA (allenai/openbookqa) test (500) 25.00% 28.20% 30.00% 35.80% 42.40% +12.40% (+6.60% vs. Single-Pass)
PIQA (baber/piqa) val (1,838) 50.00% 55.28% 54.08% 55.28% 55.66% +1.58% (+0.38% vs. Single-Pass)
WinoGrande (allenai/winogrande) val (1,267) 50.00% 50.28% 50.99% 51.22% 51.22% +0.23% (+0.00% vs. Single-Pass)
HellaSwag (Rowan/hellaswag) val (1,000) 25.00% 29.20% 31.60% 31.60% 36.70% +5.10% (+5.10% vs. Single-Pass)
QNLI (nyu-mll/glue) val (1,000) 50.00% 51.60% 54.00% 72.00% 75.90% +21.90% (+3.90% vs. Single-Pass)
CommonsenseQA (tau/commonsense_qa) val (1,221) 20.00% 21.70% 22.77% 24.65% 28.26% +5.49% (+3.61% vs. Single-Pass)
9-Task Multiple-Choice Macro Average 13,144 total 35.56% 37.56% 39.61% 43.87% 47.16% +7.55% (+3.30% vs. Single-Pass)

2. Mathematical Reasoning Held-Out Perplexity & Verification (GSM8K, test split, n = 500)

Metric (SLM-Bench) Zero-Shot NeurIPS Baseline (PairAdam) Single-Pass (HuygensSymplectic) Multi-Round Curriculum Total Improvement (Curriculum vs. Zero-Shot / PairAdam)
GSM8K Held-Out Perplexity (PPL ↓) 27.99 10.65 9.04 7.60 3.68Γ— lower vs. Zero-Shot (-28.6% vs. PairAdam)
GSM8K 4-Way Numerical Verification (Acc ↑) 34.20% 39.20% 98.60% 99.20% +60.00% vs. PairAdam (+0.60% vs. Single-Pass)

Overview of Multi-Round Curriculum Optimization

While single-pass task adaptation with HuygensSymplecticAdam already improves substantially over first-generation PairAdam, a compact 9.74M-parameter rotational backbone (12 Givens butterfly blocks on SO(D)) benefits further from multi-round curriculum training:

  1. Norm-Preserving Rotational Geometry (SO(D)): Unlike standard dense transformers (nn.Linear) whose unconstrained weight matrices overfit small-scale benchmarks within 1–2 epochs, GRT-30M parameterizes its projections as cascades of norm-preserving 2Γ—2 Givens rotations. Because orthogonal transformations preserve vector norms (||R(theta) x||_2 = ||x||_2), the backbone can be trained across multiple progressive curriculum stages without norm explosion or catastrophic forgetting.
  2. Symplectic & Wavefront-Coupled Angular Updates (HuygensSymplecticAdam): SymplecticAdam and HuygensSymplecticAdam track angular velocity and cross-stage phase coherence across the Givens cascades, allowing deeper rotational blocks to align smoothly over multi-stage schedules where first-order PairAdam stalls.
  3. Progressive Multi-Round Curriculum: Starting from the base pretrained checkpoint, the model is adapted across successive curriculum stages with cosine learning-rate scheduling, steadily refining angular phase alignment across all 12 blocks before consolidating into the published model.safetensors checkpoint.

Usage

PyTorch (transformers)

import torch
from transformers import AutoTokenizer, GRTForCausalLM

# Optional: register fused CUDA/ROCm Givens kernels if grt-kernels is installed
try:
    from grt_kernels.torch_ops import ensure_grt_ops
    ensure_grt_ops()
except ImportError:
    pass

model_id = "MatterWaveAI/grt-30m-curriculum"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = GRTForCausalLM.from_pretrained(model_id, dtype=torch.float32).eval()

prompt = "The history of the city"
input_ids = tokenizer(prompt, return_tensors="pt").input_ids
with torch.no_grad():
    output = model.generate(input_ids, max_new_tokens=32, do_sample=False)
print(tokenizer.decode(output[0], skip_special_tokens=True))

llama.cpp (GGUF)

./build/bin/llama-completion \
  -m grt-30m-f32.gguf \
  -p "Once upon a time" \
  -n 32 --temp 0 --seed 0

Verify file integrity against SHA256SUMS:

sha256sum --ignore-missing -c SHA256SUMS

Architecture Overview

GRT replaces dense weight matrices (nn.Linear) in both attention and FFN blocks with cascades of learned 2Γ—2 Givens rotations arranged in a butterfly topology. At each stage k, pairs of coordinates (x0, x1) are rotated by an angle theta_k modulated by 4-component Cl(2,0) multivector features:

feat(x0, x1) = [x0^2 + x1^2,  x0,  x1,  x0 * x1_next - x1 * x0_next]
theta_k      = alpha_k + tanh(norm(feat(x0, x1)) @ C_k)
r0           = x0 * cos(theta_k) - x1 * sin(theta_k)
r1           = x0 * sin(theta_k) + x1 * cos(theta_k)
  • GRTEmbedding & GRTCosineHead β€” Token embeddings are stored in polar form (phase_angles + log_magnitude) and tied to a scaled cosine-similarity language modeling head (lm_head.output_scale = 40.23).
  • GRTAttention β€” 11-stage content-modulated Givens butterfly cascades for Q, K, V, O, paired with standard scaled dot-product attention and learnable RoPE frequencies.
  • GRTMixer & GRTFFN β€” Cross-head Givens mixing stage followed by 21-stage rotational FFN expansion/contraction and phase-preserving GRTRadialGELU.
  • GRTPearlNorm β€” Pair-aware RMS normalization that normalizes pair radii sqrt(x_{2i}^2 + x_{2i+1}^2) while preserving phase angles.

Intended Use & Limitations

  • Research preview. Intended for studying geometric/rotational neural architectures, kernel benchmarking, and multi-backend (PyTorch / llama.cpp / vLLM) verification.
  • Base causal LM only. Not instruction-tuned, no chat template, no safety filtering, and prone to repetition under greedy decoding at small parameter scale.

Complete MatterWaveAI/grt-30m* Research Suite on Hugging Face

  1. Base Causal LM: MatterWaveAI/grt-30m & MatterWaveAI/grt-30m-curriculum
  2. Chat Fine-Tune: MatterWaveAI/grt-30m-chat
  3. 4-Expert Mixture-of-Rotations (MoR): MatterWaveAI/grt-30m-mor
  4. Circular-Pooled Sentence Embedding: MatterWaveAI/grt-30m-embedding
  5. Cross-Encoder Reranker: MatterWaveAI/grt-30m-reranker
  6. Vision-Language (GRTVL): MatterWaveAI/grt-30m-vl
  7. Canonical Tokenizer & Polar Embedding Bank: MatterWaveAI/grt-30m-tokenizer
  8. Rotational Text-to-Speech (GRTTTS): MatterWaveAI/grt-30m-tts
  9. Multimodal Vision-Audio-Language-Speech (GRTOmni): MatterWaveAI/grt-30m-omni

License

Apache 2.0


Citation

@techreport{householter2026grt,
  title       = {The Geometric Rotation Transformer: A Purely Rotational Foundation Architecture},
  author      = {Householter, David},
  institution = {MatterWave AI},
  year        = {2026},
  url         = {https://matterwave.ai}
}
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