Comment by m3h

Indeed, it looks like my work has suffered from the clustering issue as well:

  reasoning_output_tokens    count    percent
  ━━━━━━━━━━━━━━━━━━━━━━━━━  ━━━━━━━  ━━━━━━━━━
                         0      873    28.5948
  ─────────────────────────  ───────  ─────────
                         8       64     2.0963
  ─────────────────────────  ───────  ─────────
                         9       60     1.9653
  ─────────────────────────  ───────  ─────────
                        11       54     1.7688
  ─────────────────────────  ───────  ─────────
                       516       48     1.5722
  ─────────────────────────  ───────  ─────────
                        12       45     1.4740
  ─────────────────────────  ───────  ─────────
                        10       43     1.4085
  ─────────────────────────  ───────  ─────────
                        17       40     1.3102
  ─────────────────────────  ───────  ─────────
                        13       38     1.2447
  ─────────────────────────  ───────  ─────────
                        14       36     1.1792

Created a script for this: https://github.com/thehappybug/codex-reasoning-token-check