Skip to content
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
115
duration
43m
recorded
2026-08-03

run iddclm-nano-curation__u7ZtWPZ

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

download JSON ↗
codexgpt-5.6-sol122 turns7 narration115 reasoning115 action115 observation1 final
#101
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.write_stdin({session_id:14062,chars:\"\",yield_time_ms:60000,max_output_tokens:1000}); text(JSON.stringify(r))\n"
}
exec result
Script running with cell ID 64
Wall time 11.0 seconds
Output:
#102
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "64",
  "yield_time_ms": 60000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 25.7 seconds
Output:
{"chunk_id":"9f4da5","wall_time_seconds":40.379602358,"exit_code":0,"original_token_count":60,"output":"Token indices sequence length is longer than the specified maximum sequence length for this model (2916 > 1024). Running this sequence through the model will result in indexing errors\npacked 12000000 tokens from 96229 ids -> /tmp/s1.npy\n"}
#103
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 /tmp/s1.npy --heldout_npy data/multi_dev.npy --out_json /tmp/s1r.json\",\"workdir\":\"/workspace\",\"yield_time_ms\":1000,\"max_output_tokens\":1000}); text(JSON.stringify(r))\n"
}
exec result
Script completed
Wall time 1.2 seconds
Output:
{"chunk_id":"136ab7","wall_time_seconds":1.000811391,"session_id":28596,"original_token_count":0,"output":""}
#104
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.write_stdin({session_id:28596,chars:\"\",yield_time_ms:60000,max_output_tokens:1000}); text(JSON.stringify(r))\n"
}
exec result
Script running with cell ID 66
Wall time 11.0 seconds
Output:
#105
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "66",
  "yield_time_ms": 60000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 42.6 seconds
Output:
{"chunk_id":"af49bb","wall_time_seconds":56.109058458,"exit_code":0,"original_token_count":15,"output":"HELDOUT_PPL 467.477  loss 6.1474  train_s 55  /tmp/s1.npy\n"}
#106
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.exec_command({cmd:\"python pack_selection.py /tmp/s2.json /tmp/s2.npy\",\"workdir\":\"/workspace\",\"yield_time_ms\":1000,\"max_output_tokens\":1000}); text(JSON.stringify(r))\n"
}
exec result
Script completed
Wall time 1.2 seconds
Output:
{"chunk_id":"b11dad","wall_time_seconds":1.001374875,"session_id":75923,"original_token_count":0,"output":""}
#107
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.write_stdin({session_id:75923,chars:\"\",yield_time_ms:60000,max_output_tokens:1000}); text(JSON.stringify(r))\n"
}
exec result
Script running with cell ID 68
Wall time 11.0 seconds
Output:
#108
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "68",
  "yield_time_ms": 60000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 23.6 seconds
Output:
{"chunk_id":"dff97a","wall_time_seconds":37.088301969,"exit_code":0,"original_token_count":60,"output":"Token indices sequence length is longer than the specified maximum sequence length for this model (1169 > 1024). Running this sequence through the model will result in indexing errors\npacked 12000000 tokens from 96229 ids -> /tmp/s2.npy\n"}
#109
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 /tmp/s2.npy --heldout_npy data/multi_dev.npy --out_json /tmp/s2r.json\",\"workdir\":\"/workspace\",\"yield_time_ms\":1000,\"max_output_tokens\":1000}); text(JSON.stringify(r))\n"
}
exec result
Script completed
Wall time 1.2 seconds
Output:
{"chunk_id":"080e41","wall_time_seconds":1.001419673,"session_id":80336,"original_token_count":0,"output":""}
#110
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.write_stdin({session_id:80336,chars:\"\",yield_time_ms:60000,max_output_tokens:1000}); text(JSON.stringify(r))\n"
}
exec result
Script running with cell ID 70
Wall time 11.0 seconds
Output:
#111
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "70",
  "yield_time_ms": 60000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 39.5 seconds
Output:
{"chunk_id":"1b433c","wall_time_seconds":53.180595952,"exit_code":0,"original_token_count":15,"output":"HELDOUT_PPL 449.012  loss 6.1070  train_s 55  /tmp/s2.npy\n"}
#112
narration

The conservative filter is the clear winner: 437.1 dev perplexity, versus 449.9 for a looser filter and 476.7 random. Exact-prefix deduplication unexpectedly worsened it (451.6), so I’m retaining duplicates rather than assuming syndication is always harmful. I’m now freezing the winning criterion and verifying that its script reproduces the submitted IDs and token coverage.

#113
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const patch = \"*** Begin Patch\\n*** Delete File: /workspace/submission/curate.py\\n*** Add File: /workspace/submission/curate.py\\n+#!/usr/bin/env python3\\n+\\\"\\\"\\\"Conservative English quality filtering with distribution-preserving ordering.\\n+\\n+This intentionally rejects only strong raw-crawl failure signals.  Eligible\\n+documents are ordered by a stable content hash, preserving the pool's broad\\n+topic/register distribution instead of concentrating on one quality-score tail.\\n+\\\"\\\"\\\"\\n+import hashlib, json, re\\n+from pathlib import Path\\n+\\n+POOL = Path('/workspace/data/pool.jsonl')\\n+OUT = Path('/workspace/submission/selection.json')\\n+WORDS = re.compile(r\\\"[A-Za-z]+(?:'[A-Za-z]+)?\\\")\\n+STOP = set(('the of and to in a is was for that on as with by are from at it an '\\n+            'be this which or were has have not but can their its they he she his '\\n+            'her also into after between than').split())\\n+CHROME = re.compile(r'cookie|privacy policy|sign in|log in|shopping cart|all rights reserved', re.I)\\n+\\n+def eligible(text):\\n+    n = len(text)\\n+    if n < 700 or n > 60_000:\\n+        return False\\n+    # Sampling the first 16k characters makes the decision cheap and prevents\\n+    # very long documents from having disproportionate influence on the gate.\\n+    sample = text[:16_000]\\n+    words = WORDS.findall(sample)\\n+    if len(words) < 130:\\n+        return False\\n+    letters = sum(c.isalpha() for c in sample)\\n+    ascii_letters = sum('a' <= c.lower() <= 'z' for c in sample)\\n+    if letters / len(sample) < .54 or ascii_letters / max(1, letters) < .91:\\n+        return False\\n+    lower = [w.lower() for w in words]\\n+    diversity = len(set(lower)) / len(lower)\\n+    function_rate = sum(w in STOP for w in lower) / len(lower)\\n+    if diversity < .23 or not (.24 <= function_rate <= .58):\\n+        return False\\n+    if len(CHROME.findall(sample)) > 6 or sample.count('|') / len(sample) > .006:\\n+        return False\\n+    return True\\n+\\n+def main():\\n+    ranked = []\\n+    with POOL.open() as f:\\n+        for line in f:\\n+            doc = json.loads(line)\\n+            text = doc['text']\\n+            if eligible(text):\\n+                key = int.from_bytes(hashlib.blake2b(text[:4096].encode(), digest_size=8).digest(), 'big')\\n+                ranked.append((key, doc['id']))\\n+    ranked.sort()\\n+    OUT.parent.mkdir(parents=True, exist_ok=True)\\n+    OUT.write_text(json.dumps([doc_id for _, doc_id in ranked]))\\n+    print(f'wrote {len(ranked)} ids to {OUT}')\\n+\\n+if __name__ == '__main__':\\n+    main()\\n*** End Patch\"; text(await tools.apply_patch(patch));\n"
}
exec result
Script completed
Wall time 0.0 seconds
Output:
{}
#114
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.exec_command({cmd:\"python -u submission/curate.py\",\"workdir\":\"/workspace\",\"yield_time_ms\":1000,\"max_output_tokens\":1000}); text(JSON.stringify(r))\n"
}
exec result
Script completed
Wall time 1.2 seconds
Output:
{"chunk_id":"70f7d7","wall_time_seconds":1.00172275,"session_id":69527,"original_token_count":0,"output":""}
#115
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.write_stdin({session_id:69527,chars:\"\",yield_time_ms:60000,max_output_tokens:1000}); text(JSON.stringify(r))\n"
}
exec result
Script running with cell ID 73
Wall time 11.0 seconds
Output:
#116
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "73",
  "yield_time_ms": 60000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 43.9 seconds
Output:
{"chunk_id":"5d446d","wall_time_seconds":60.001358678,"session_id":69527,"original_token_count":0,"output":""}
#117
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.write_stdin({session_id:69527,chars:\"\",yield_time_ms:60000,max_output_tokens:1000}); text(JSON.stringify(r))\n"
}
exec result
Script running with cell ID 74
Wall time 11.0 seconds
Output:
#118
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait
args
{
  "cell_id": "74",
  "yield_time_ms": 60000,
  "max_tokens": 1000
}
wait result
Script completed
Wall time 44.2 seconds
Output:
{"chunk_id":"29dd4d","wall_time_seconds":60.001156306,"session_id":69527,"original_token_count":0,"output":""}
#119
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r=await tools.write_stdin({session_id:69527,chars:\"\",yield_time_ms:60000,max_output_tokens:1000}); text(JSON.stringify(r))\n"
}
exec result
Script completed
Wall time 1.8 seconds
Output:
{"chunk_id":"ddf82a","wall_time_seconds":1.8071198179999999,"exit_code":0,"original_token_count":14,"output":"wrote 96229 ids to /workspace/submission/selection.json\n"}
#120
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.exec_command({cmd:\"cmp submission/selection.json /tmp/strict.json; echo cmp_status=$?; python - <<'PY'\\nimport json\\nx=json.load(open('submission/selection.json'))\\nprint(len(x),len(set(x)),min(x),max(x))\\nPY\\ncat .timer/remaining_secs\",\"workdir\":\"/workspace\",\"yield_time_ms\":10000,\"max_output_tokens\":1000}); text(r.output)\n"
}
exec result
Script completed
Wall time 0.2 seconds
Output:
cmp_status=0
96229 96229 1 182014
3127
#121
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const patch = \"*** Begin Patch\\n*** Add File: /workspace/claim.md\\n+# Hypothesis\\n+\\n+Under a 12M-token budget and a 30M-parameter model, conservative removal of clear crawl failures will outperform both random data and aggressive “best-document” ranking. The useful signal is broad edited English, not maximal lexical rarity. A stable content-hash ordering preserves the pool's topic and register diversity while avoiding any dependence on opaque document IDs.\\n+\\n+# Mechanism\\n+\\n+The filter removes documents with strong indicators of non-English text, templates/lists, boilerplate, low linguistic content, or degenerate repetition. It requires normal alphabetic density, mostly ASCII English letters, a plausible English function-word rate, minimum lexical diversity, and limited navigation chrome. It deliberately does not rank the survivors by a scalar quality score, because doing so concentrates the 12M-token prefix on stylistic extremes.\\n+\\n+An observable prediction independent of final held-out perplexity is that the selected prefix will have higher alphabetic and English function-word density and fewer pipe-delimited/navigation-heavy pages than a random prefix, while retaining documents from news, expository prose, informal web prose, and technical discussion. The script retains 96,229 of 182,016 documents, leaving ample exact-token coverage.\\n+\\n+# Falsification\\n+\\n+The hypothesis is falsified if conservative filtering fails to improve dev cross-entropy over random, or if an aggressive quality tail performs better without losing domain coverage. In fixed-recipe dev experiments, random selection gave perplexity 476.714; a lexical-richness/domain-ranked candidate was worse at 512.885; a revised aggressive rank was 495.955; a loose conservative filter reached 449.894; and the submitted conservative English filter reached 437.128. Prefix deduplication also failed its test (451.628), so it was not included.\\n+\\n+# Transfer\\n+\\n+The gates use generic surface statistics rather than source names, topic keywords, labels, or hand-picked IDs. They should transfer to other heterogeneous English crawls and small-model regimes where token scarcity makes obvious boilerplate costly. Thresholds may need recalibration for multilingual corpora, code-heavy targets, or much larger models/token budgets; in those settings, non-ASCII text, markup, rare vocabulary, and duplicates may carry more value.\\n*** End Patch\"; text(await tools.apply_patch(patch));\n"
}
exec result
Script completed
Wall time 0.0 seconds
Output:
{}
#122
reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec
args
{
  "input": "const r = await tools.exec_command({cmd:\"python -m py_compile submission/curate.py && test -s claim.md && test -s submission/selection.json && sha256sum submission/selection.json submission/curate.py claim.md && git diff --no-index /dev/null submission/curate.py | head -20; cat /tmp/rs.json\",\"workdir\":\"/workspace\",\"yield_time_ms\":10000,\"max_output_tokens\":3000}); text(r.output)\n"
}
exec result
Script completed
Wall time 0.2 seconds
Output:
833656a27f6d4c67fbf5c56bf8760d7c3a08db23ca23f704854c89dd539f9034  submission/selection.json
e91a38f77706c960a0cdfbf419259e0748fbedf6b6c916eb66d29020ecb92c31  submission/curate.py
c1822efca5f75e6b88d280d27db83951100fc6a44fedc33268dfbc75be4bd0ce  claim.md
/bin/bash: line 1: git: command not found
{"train_npy": "/tmp/strict.npy", "heldout_ppl": 437.1282445804161, "mean_loss": 6.0802266179019835, "max_iters": 3000, "seed": 1337, "train_s": 55.0}
final summary

Completed and validated:

  • selection.json — 96,229 unique valid IDs, covering 12M tokens.
  • curate.py — reproducible conservative English-quality filter.
  • claim.md — hypothesis, mechanism, falsification, and transfer.

Dev perplexity: 437.128, versus 476.714 for random selection.