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: 217
duration: 1h 4m
recorded: 2026-08-03

run iddclm-nano-curation__5zjKKAd

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

download JSON ↗

codexgpt-5.6-sol230 turns13 narration217 reasoning217 action217 observation1 final

#226

reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec

args

{
  "input": "const r = await tools.write_stdin({session_id:26234,chars:\"\",yield_time_ms:30000,max_output_tokens:5000});\ntext(r);\n"
}

exec result

Script completed
Wall time 2.6 seconds
Output:
{"chunk_id":"f41a13","wall_time_seconds":2.564767345,"exit_code":0,"original_token_count":31,"output":"scored 175000 documents\nwrote 182014 unique ids to /workspace/submission/selection.json; lane MB: 66.4, 66.3, 66.3, 51.0\n"}

#227

reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec

args

{
  "input": "const r = await Promise.all([\n  tools.exec_command({cmd:\"sha256sum submission/selection.json candidates/minhash2_equal_old.json && cmp -s submission/selection.json candidates/minhash2_equal_old.json; echo cmp_exit=$?\",\"workdir\":\"/workspace\",\"yield_time_ms\":10000,\"max_output_tokens\":1000}),\n  tools.exec_command({cmd:\"python -m py_compile submission/curate.py && python - <<'PY'\\nimport json\\nx=json.load(open('submission/selection.json'));print(len(x),len(set(x)),min(x),max(x));assert len(x)==len(set(x)) and min(x)>=0 and max(x)<182016\\nPY\\ncat .timer/remaining_secs\",\"workdir\":\"/workspace\",\"yield_time_ms\":10000,\"max_output_tokens\":1000})\n]);\nfor (const x of r) text(x);\n"
}

exec result

Script completed
Wall time 0.2 seconds
Output:
{"chunk_id":"2118de","wall_time_seconds":0.000003692,"exit_code":0,"original_token_count":51,"output":"58aeaca5df064203171385b51b49d25d262cf31adaa8fc20251e4f8ec93a1852  submission/selection.json\n58aeaca5df064203171385b51b49d25d262cf31adaa8fc20251e4f8ec93a1852  candidates/minhash2_equal_old.json\ncmp_exit=0\n"}{"chunk_id":"d270a6","wall_time_seconds":0.000003699,"exit_code":0,"original_token_count":7,"output":"182014 182014 0 182015\n1936\n"}

#228

reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec

args

{
  "input": "const r = await tools.exec_command({cmd:\"python pack_selection.py submission/selection.json /tmp/final_train.npy && sha256sum /tmp/final_train.npy /tmp/minhash2_equal_old.npy && cmp -s /tmp/final_train.npy /tmp/minhash2_equal_old.npy; echo cmp_exit=$?\",\"workdir\":\"/workspace\",\"yield_time_ms\":1000,\"max_output_tokens\":3000});\ntext(r);\n"
}

exec result

Script completed
Wall time 1.2 seconds
Output:
{"chunk_id":"c5226d","wall_time_seconds":1.001338455,"session_id":64312,"original_token_count":0,"output":""}

#229

reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolexec

args

{
  "input": "const r = await tools.write_stdin({session_id:64312,chars:\"\",yield_time_ms:30000,max_output_tokens:3000});\ntext(r);\n"
}

exec result

Script running with cell ID 142
Wall time 11.0 seconds
Output:

#230

reasoning (redacted)

encrypted chain-of-thought — recorded, not exposed

toolwait

args

{
  "cell_id": "142",
  "yield_time_ms": 30000,
  "max_tokens": 3000
}

wait result

Script completed
Wall time 9.7 seconds
Output:
{"chunk_id":"eb4dd1","wall_time_seconds":24.369718984,"exit_code":0,"original_token_count":110,"output":"Token indices sequence length is longer than the specified maximum sequence length for this model (4798 > 1024). Running this sequence through the model will result in indexing errors\npacked 12000000 tokens from 182014 ids -> /tmp/final_train.npy\nf0b0ebeb3d795863da63d00a91c4f16ebe7f9257fed0885b5b4709b49024eb93  /tmp/final_train.npy\nf0b0ebeb3d795863da63d00a91c4f16ebe7f9257fed0885b5b4709b49024eb93  /tmp/minhash2_equal_old.npy\ncmp_exit=0\n"}

final summary

Completed all deliverables:

selection.json — 182,014 unique valid IDs; verified exact 12M-token packing
curate.py — fully reproducible curation
claim.md — hypothesis, mechanism, falsification, and transfer

Frozen-script dev perplexity: 350.79, versus 465.53 for random selection.