mirror of
https://github.com/MODSetter/SurfSense.git
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61 lines
2 KiB
Python
61 lines
2 KiB
Python
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"""Sanity check extraction sizes against Sonnet 4.5's context window.
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Sonnet 4.5 supports ~200k tokens. As a *very* rough heuristic, English
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markdown is ~4 chars/token, so anything over ~750k chars likely won't
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fit alongside the system + question + 512 max_output_tokens. Print
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warnings for any extraction that's at risk.
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"""
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from __future__ import annotations
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import json
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from pathlib import Path
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REPO = Path(__file__).resolve().parents[1]
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MAP = REPO / "data" / "multimodal_doc" / "maps" / "parser_compare_doc_map.jsonl"
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CHARS_PER_TOKEN = 4
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CTX_TOKENS = 200_000
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PROMPT_OVERHEAD_TOKENS = 1_000 # system + question + format hint
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MAX_OUTPUT_TOKENS = 512
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SAFE_CHARS = (CTX_TOKENS - PROMPT_OVERHEAD_TOKENS - MAX_OUTPUT_TOKENS) * CHARS_PER_TOKEN
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def main() -> None:
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rows = [
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json.loads(line)
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for line in MAP.read_text(encoding="utf-8").splitlines()
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if line.strip()
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]
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total = len(rows)
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arm_max: dict[str, tuple[int, str]] = {}
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overflows: list[tuple[str, str, int]] = []
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for row in rows:
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for arm, ext in (row.get("extractions") or {}).items():
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chars = int(ext.get("chars") or 0)
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if arm not in arm_max or arm_max[arm][0] < chars:
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arm_max[arm] = (chars, row["doc_id"])
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if chars > SAFE_CHARS:
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overflows.append((row["doc_id"], arm, chars))
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print(f"PDFs in manifest: {total}")
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print(f"safe char budget: {SAFE_CHARS:,} (~{(SAFE_CHARS // CHARS_PER_TOKEN):,} tokens)")
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print()
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print("largest extraction per arm:")
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for arm, (chars, doc_id) in sorted(arm_max.items()):
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print(f" {arm:25s} {chars:>10,} chars ({doc_id})")
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print()
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if overflows:
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print(f"OVERFLOW RISK ({len(overflows)} extractions > safe budget):")
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for doc_id, arm, chars in overflows:
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est_tokens = chars // CHARS_PER_TOKEN
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print(f" {doc_id} :: {arm} :: {chars:,} chars (~{est_tokens:,} tokens)")
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else:
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print("no overflow risk — all extractions fit Sonnet 4.5's 200k context.")
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if __name__ == "__main__":
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main()
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