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nano-gpt-data-curation

gpt-5.6-sol

nano-gpt-data-curation — graded by the task's verifier against a measured baseline.

backend
modal
variant
codex azure_ai/gpt-5.6-sol
metric
held-out multi-domain perplexity
actions
155
duration
45m
recorded
2026-08-03

run iddclm-nano-curation__gfZ879v

Everything gpt-5.6-sol did on this task, in order.

download JSON ↗
codexgpt-5.6-sol162 turns7 narration155 reasoning155 action155 observation1 final
#151
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.write_stdin({session_id:85464,chars:\"\",yield_time_ms:30000,max_output_tokens:1000}); text(r.output)\n"
}
exec result
Script completed
Wall time 1.3 seconds
Output:
packed 12000000 tokens from 21033 ids -> data/q49.npy
#152
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.exec_command({cmd:\"python train_nano.py --train_npy data/q49.npy --heldout_npy data/multi_dev.npy --out_json data/q49_result.json\",workdir:\"/workspace\",yield_time_ms:1000,max_output_tokens:1000}); text(r.output); if(r.session_id) text(`SESSION_ID=${r.session_id}`)\n"
}
exec result
Script completed
Wall time 1.3 seconds
Output:
SESSION_ID=16976
#153
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.write_stdin({session_id:16976,chars:\"\",yield_time_ms:30000,max_output_tokens:1000}); text(r.output)\n"
}
exec result
Script running with cell ID 93
Wall time 11.1 seconds
Output:
#154
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "93",
  "yield_time_ms": 30000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 9.2 seconds
Output:
#155
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.write_stdin({session_id:16976,chars:\"\",yield_time_ms:30000,max_output_tokens:1000}); text(r.output)\n"
}
exec result
Script running with cell ID 94
Wall time 11.0 seconds
Output:
#156
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "94",
  "yield_time_ms": 30000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 5.8 seconds
Output:
HELDOUT_PPL 430.660  loss 6.0653  train_s 54  data/q49.npy
#157
narration

The best tested setting is now 420.10 perplexity, a 13.5% reduction from the random control. Nearby weights (.25, .38, .49, .60) scored 423.84, 424.38, 430.66, and 439.15 respectively, so I’m locking the observed optimum at 0.45 and completing reproducibility and validity checks.

#158
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const patch = \"*** Begin Patch\\n*** Update File: /workspace/submission/curate.py\\n@@\\n-    score = float(z[dom] + float(os.environ.get(\\\"QUALITY_WEIGHT\\\", \\\".72\\\")) * r[2])\\n+    # 0.45 was chosen on the disclosed dev set from a small fixed sweep; affinity\\n+    # alone and substantially larger cleanliness weights were both worse.\\n+    score = float(z[dom] + float(os.environ.get(\\\"QUALITY_WEIGHT\\\", \\\".45\\\")) * r[2])\\n*** Add File: /workspace/claim.md\\n+# Hypothesis\\n+\\n+For a small model trained far below one epoch, a token-balanced mixture of clean\\n+documents whose vocabulary matches each disclosed target register will outperform\\n+both random web data and a single global “quality” ranking. The useful unit of\\n+balance is tokens, not documents, because web-document lengths vary widely.\\n+\\n+# Mechanism\\n+\\n+The curator builds four add-two-smoothed unigram models from the four equal quarters\\n+of the disclosed dev corpus, assigns every eligible pool document to its closest\\n+standardized profile, and ranks it by target affinity plus a content-only cleanliness\\n+score. It then merges the four queues by the currently underfilled token count.\\n+\\n+Before final perplexity is measured, this predicts two observable outcomes: the first\\n+12M training tokens will be approximately quartered across the four induced domains,\\n+and they will contain fewer navigation, commerce, spam, malformed-text, and directory\\n+artifacts than a random 12M-token sample. It also predicts lower dev cross-entropy.\\n+In the frozen training pipeline, the selected data achieved dev perplexity **420.10**,\\n+versus **485.76** for a seeded random control. Removing the cleanliness contribution\\n+gave 452.77; overweighting it gave 474.76.\\n+\\n+# Falsification\\n+\\n+The hypothesis is falsified if token-domain counts are materially imbalanced, if the\\n+artifact-rate audit is not lower than random, or if repeated frozen-recipe runs show\\n+no cross-entropy advantage over random. A stronger test would hold out an additional\\n+sample from each of the four registers, tune no weights on it, and require improvement\\n+in every register rather than only in the aggregate.\\n+\\n+# Transfer\\n+\\n+The method transfers to another raw corpus or disclosed target by recomputing the four\\n+frequency profiles and content features; it never uses pool IDs, source positions, or\\n+a hand-written allowlist. For a different target mixture, change the merge quotas. For\\n+a different tokenizer, recompute document lengths and unigram profiles with that\\n+tokenizer. The lexical matcher is intentionally simple and auditable; richer embedding\\n+or classifier scores can replace it without changing the balancing mechanism.\\n*** End Patch\";\ntext(await tools.apply_patch(patch));\n"
}
exec result
Script completed
Wall time 0.0 seconds
Output:
{}
#159
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.exec_command({cmd:\"cp /tmp/q45_selection.json submission/selection.json && python -m py_compile submission/curate.py && python - <<'PY'\\nimport json, numpy as np\\np='submission/selection.json'; s=json.load(open(p))\\nassert isinstance(s,list) and len(s)==len(set(s))\\nassert all(isinstance(x,int) and 0 <= x < 182016 for x in s)\\na=np.load('data/q45.npy')\\nassert len(a)==12_000_000\\nprint({'ids':len(s),'unique':len(set(s)),'min':min(s),'max':max(s),'packed_tokens':len(a)})\\nprint('results:')\\nfor n in ['random','q0','q25','q38','q45','candidate','q49','q60','q2']:\\n try: print(n,json.load(open('data/'+n+'_result.json'))['heldout_ppl'])\\n except FileNotFoundError: pass\\nPY\\ncat .timer/remaining_secs\\ngit diff -- submission/curate.py claim.md --stat 2>/dev/null || true\\nls -lh submission/selection.json submission/curate.py claim.md\",workdir:\"/workspace\",yield_time_ms:10000,max_output_tokens:3000}); text(r.output)\n"
}
exec result
Script completed
Wall time 0.6 seconds
Output:
{'ids': 20868, 'unique': 20868, 'min': 37, 'max': 181948, 'packed_tokens': 12000000}
results:
random 485.75494928631923
q0 452.77152601463456
q25 423.841825223863
q38 424.3834653309276
q45 420.0981319506311
candidate 432.9898799532421
q49 430.6599357904247
q60 439.1492617012978
q2 474.7578141947609
3230
-rw-r--r-- 1 root root 2.2K Aug  4 00:02 claim.md
-rw-r--r-- 1 root root 5.2K Aug  4 00:02 submission/curate.py
-rw-r--r-- 1 root root 144K Aug  4 00:02 submission/selection.json
#160
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.exec_command({cmd:\"CURATE_CACHE=/tmp/curate_rows.npz python submission/curate.py && cmp -s submission/selection.json /tmp/q45_selection.json && echo 'reproduction_match=yes' && python pack_selection.py submission/selection.json /tmp/final_train.npy\",workdir:\"/workspace\",yield_time_ms:1000,max_output_tokens:1200}); text(r.output); if(r.session_id) text(`SESSION_ID=${r.session_id}`)\n"
}
exec result
Script completed
Wall time 1.3 seconds
Output:
SESSION_ID=27912
#161
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.write_stdin({session_id:27912,chars:\"\",yield_time_ms:30000,max_output_tokens:1200}); text(r.output)\n"
}
exec result
Script running with cell ID 98
Wall time 11.0 seconds
Output:
#162
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "98",
  "yield_time_ms": 30000,
  "max_tokens": 1200
}
wait result
Script completed
Wall time 9.0 seconds
Output:
selected 20868 unique documents, estimated 16,007,390 tokens; domains [4010687, 3999058, 3998882, 3998763]
reproduction_match=yes
Token indices sequence length is longer than the specified maximum sequence length for this model (1733 > 1024). Running this sequence through the model will result in indexing errors
packed 12000000 tokens from 20868 ids -> /tmp/final_train.npy
final summary

Completed all deliverables:

  • selection.json — 20,868 unique valid IDs; verified 12M-token coverage.
  • curate.py — reproducibly regenerates the exact selection.
  • claim.md — hypothesis, mechanism, falsification, and transfer.

Best dev perplexity: 420.10, versus 485.76 for random selection.