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sft-forge-ensemble (v0.3)

Single pareto-pruned SFT dataset ensembled from multiple high-quality sources. Generated by sft-forge — t.

Pipeline

ingest -> tag every row -> programmatic refine -> GLOBAL dedup (one minhash index across all sources) -> per-slice pareto prune (quality vs REAL gpt2 token cost) -> this file.

Sources (rows ingested)

source rows
a 1

Survival after dedup + pareto (kept/ingested)

source kept
a 1/1
  • Kept rows: 1 (0 dominated rows pruned)
  • Real token total (gpt2 BPE): 123
  • Slices: 1 capability slices

Token budget by source (gpt2, kept rows only)

source tokens share

Deep agentic trajectories dominate raw token share by design (they are the rows small models cannot synthesize); rebalance a training mix by dropping or down-weighting src:pyromind_long-tagged rows via the tag filter.

Format

train.jsonl: {"id", "tags", "messages" (assistant turns loss-mask-ready via trainable), "approx_tokens", "gpt2_tokens", "meta"}. Filter by tags, never re-split. gpt2_tokens is the true BPE count — trust it for packing.

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