Document superseded repo name Compactbot/slm-architecture-benchmark-map

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  ---
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- license: apache-2.0
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  language:
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- - en
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  tags:
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- - small-language-model
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- - slm
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- - architecture
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- - benchmark
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- - comparison
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- - zero-shot
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- - dataset
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- pipeline_tag: dataset
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  ---
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- # SLM Architecture → Score (controlled ablation panel)
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- A small, **controlled** dataset of per-task zero-shot benchmark scores across
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- different **architectures**, harvested from the model cards of the
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- `d0rj/tiny-llm-ablation` family. The point is to isolate *architecture* as the
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- variable: every model in the panel is held constant on everything else.
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- ## Why this panel is controlled
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- All models share:
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- - **~51M parameters**, trained **from scratch** (not finetunes)
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- - **Same data**: FineWeb-Edu `sample-10BT`, 3,932,160,000 source tokens
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- - **Same budget**: 15,000 optimizer steps
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- - **Same tokenizer**: 32,768 tokens
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- - **Same eval protocol**: lm-eval 0.4.12, zero-shot, 8 tasks, full official
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- splits, 95% Wilson confidence intervals, BF16
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- - **Same width/heads/FFN**: d=512, 8 query / 2 KV heads, SwiGLU ffn=1792, ctx 2048
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- The **only** thing that varies is the architecture family. That is what makes
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- an architecture→score comparison meaningful — most "which arch is best" threads
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- confound architecture with scale, data and tokenizer.
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-
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- ## The models
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-
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- | repo | family | what varies |
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- |---|---|---|
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- | `d0rj/q-51M-base` | causal-GPT | reference baseline (10 decoder layers) |
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- | `d0rj/q-prefixlm-51M-base` | prefix-LM | bidirectional prefix context + suffix-only loss |
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- | `d0rj/looped-51M-base` | looped (Universal-Transformer) | 10 unique blocks weight-shared × 6 loops = 60 effective layers |
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- | `d0rj/diffusion-51M-base` | diffusion / masked LM | **different metric — see caveat** |
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-
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- > `d0rj/prefixlm-51M-base` is a **duplicate** of `q-prefixlm-51M-base` (identical
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- > eval scores; the only difference is whether a 32-element RoPE buffer is counted
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- > in the parameter total: 50,866,720 vs 50,866,688). It is included for
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- > completeness and flagged `duplicate_of`.
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-
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- ## Headline result (AR-comparable models only)
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-
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- | family | HellaSwag | ARC-E | ARC-C | PIQA | WinoG | OBQA | BoolQ | LAMBADA | **macro** |
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- |---|---:|---:|---:|---:|---:|---:|---:|---:|---:|
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- | causal-GPT | 29.18 | 43.31 | 24.23 | 59.90 | 50.04 | 28.20 | 59.88 | 20.86 | **39.45** |
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- | prefix-LM | 28.39 | 36.24 | 22.78 | 53.10 | 49.72 | 25.60 | 54.86 | 23.35 | **36.76** |
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- | looped | 29.62 | 44.28 | 22.10 | 60.28 | 50.12 | 29.00 | 61.59 | 20.90 | **39.74** |
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-
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- - **Looped (weight-shared depth) ≥ causal** on 7 of 8 tasks (macro 39.74 vs 39.45); it wins most on ARC-Easy, PIQA, OBQA, BoolQ.
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- - **Prefix-LM < causal** on 7 of 8 tasks (macro 36.76 vs 39.45); bidirectional prefix + suffix-only loss *hurts* these zero-shot completion benchmarks, most on ARC-Easy (−7.1) and PIQA (−6.8). Its one win is LAMBADA (+2.5), where bidirectional context helps predict the final word.
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-
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- ## Caveats (read before trusting this)
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-
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- 1. **n = 3 distinct AR-comparable architectures.** This is a *pairwise comparison
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- panel*, not a correlation. You cannot fit an architecture→score regression on
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- three points; the honest claim is "in this controlled panel, looped ≥ causal
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- and prefix-LM < causal", not "deeper/shared archs correlate with score".
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- 2. **Single training seed.** Differences of ~1–2 pts are within the 95% Wilson
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- CIs on most tasks (e.g. HellaSwag causal CI [28.30, 30.07] overlaps both
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- rivals). The directional pattern (looped up, prefix down, 7/8 tasks each) is
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- more robust than any single-task gap.
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- 3. **Diffusion row is a different metric.** `diffusion-51M-base` is scored with
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- continuation **perplexity** (its LAMBADA 42.21 is a PLL, not AR loglikelihood),
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- so it is **excluded from the AR macro** and must not be mixed into the
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- comparison. Its card says so explicitly.
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- 4. **Zero-shot, uncorrected for contamination.** One seed, no multiple-comparison
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- correction (as the source cards state).
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-
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- ## Source & provenance
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-
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- Scores are author-reported `model-index` / `evaluation/results.json` values from
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- the four `d0rj` repos, harvested 2026-09-24. This dataset is a *harvest +
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- honest-analysis* artifact: it does not re-run the evals, it re-states the
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- source numbers with the controlled-design framing and the metric caveat made
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- explicit. To reproduce the underlying evals, see each repo's
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- `evaluation/run_core.py`.
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  ## Files
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- - `slm_arch_scores.jsonl` — one row per model: `arch` features, per-task
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- `{metric, value, ci95, n}`, `ar_macro` (null for the diffusion row),
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- `metric_type`, `duplicate_of`.
 
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  ---
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+ license: mit
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  language:
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+ - en
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  tags:
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+ - slm
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+ - architecture
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+ - benchmark
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+ - evaluation
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+ pretty_name: SLM Architecture Benchmark Scores
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+ size_categories:
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+ - n<1K
 
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  ---
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+ # SLM Architecture Benchmark Scores
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+ A standardized, controlled panel of benchmark scores across small language models trained from scratch under controlled or comparable regimes.
 
 
 
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+ ## Summary
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+ This dataset aggregates multi-task benchmark evaluations (ARC-Easy, BLiMP, WikiText-2, etc.) for sub-100M parameter models trained from scratch, isolating architectural differences (standard decoder-only, prefix-LM, looped/weight-tied, etc.) where experimental protocols permit.
 
 
 
 
 
 
 
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+ Note: Consolidates and supersedes the experimental dataset name Compactbot/slm-architecture-benchmark-map.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ## Files
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+
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+ - scores.csv: Tabular benchmark results and architectural metadata.
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+ - scores.jsonl: JSON lines format with per-model evaluation records.