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Codex (GPT-5.5, Plus plan) – rate-limit cost per token jumped 10x+ since June 16

OpenAI's Codex desktop app on the ChatGPT Plus plan has experienced a 10-20x increase in rate-limit cost per token since June 16, reducing usable prompts from 20+ to 2-3 per 5-hour budget. User logs show smaller prompts with near-zero reasoning tokens consuming 10-27% of the budget each, compared to 1% previously. The issue coincides with an active OpenAI status incident and may indicate an unannounced rate-limit change or bug.

read3 min views1 publishedJun 20, 2026
Codex (GPT-5.5, Plus plan) – rate-limit cost per token jumped 10x+ since June 16
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appIssues related to the Codex desktop appIssues related to the Codex desktop app

bugSomething isn't workingSomething isn't working

rate-limitsIssues related to rate limits, quotas, and token usage reportingIssues related to rate limits, quotas, and token usage reporting

Description #

Summary #

Starting ~June 16, my ChatGPT Plus Codex budget drains in 2–3 prompts on gpt-5.5

, where the same model/plan/app previously gave 20+ prompts. My Codex session logs (token_count

/ rate_limits

events) show the limit-% consumed per token has increased roughly 10–20×, with no change on my side — prompts are actually smaller now and reasoning tokens are near zero.

Environment #

  • Codex desktop app, Windows 11
  • Model: gpt-5.5

,service_tier = "default"

  • Plan: plus

(confirmed inrate_limits.plan_type

) - Config unchanged across the regression window

Evidence — same plan, same model, same app #

June 12 (working — 20+ prompts/day):

Prompt Input tokens Reasoning tokens Primary limit %
06:08 22,334 488 2%
06:09 52,161 1,130 3%
06:51 57,112 3,645 9% → 11%
06:54 79,961 5,125 15% → 16%

→ ~57K-token prompt with 3.6K reasoning ≈ 1% of the 5h budget

June 18 (broken — 2–3 prompts): | Prompt | Input tokens | Reasoning tokens | Primary limit % |

|---|---|---|---|
| 07:22:27 | 18,910 | 152 | 18% |
| 07:22:30 | 20,480 | 0 | 45% |
| 07:22:34 | 23,469 | 48 | 57% |
| 07:22:43 | 23,631 | 0 | 68% |
| 07:22:50 | 23,839 | 0 | 77% |

→ ~20K-token prompt with zero reasoning ≈ 10–27% of the 5h budget

Per-token limit cost changed ~10–20×. Smaller prompts, near-zero reasoning, yet each consumes 10–20× more of the 5-hour budget than a 57K-token xhigh prompt did on June 12.

What I ruled out (verified from logs) #

Not reasoning effort: reasoning tokens are 0–152 today vs 3,645–5,125 on the good days.Not prompt/context bloat: input tokens dropped from 57K–80K to 18K–23K.Not my config:model_reasoning_effort

was alreadyhigh

/xhigh

on the working days (June 12–15). xhigh gave 30–40+ prompts on June 3, 12, 13, 15.Not the weekly cap: secondary window is only at 12%. The 5-hour window is the one draining.

Corroborating timing #

OpenAI status page shows an active incident ongoing ~2 days (since ~June 16), which matches exactly when my usable prompt count dropped from ~9 sessions/day to ~4.

Ask #

Was the Plus-tier gpt-5.5 rate-limit budget reduced or the per-token weighting changed around June 16? If intentional, what's the new budget? If not, can it be investigated?

Session log references #

- Good day:
`rollout-2026-06-12T09-07-36-019eba71-5c57-70d0-a8fa-aa999731e9ff.jsonl`

- Bad day:
`rollout-2026-06-18T10-22-14-019ed99b-ea9d-7fa1-a86b-dca4e55a8e3e.jsonl`

- Rate-limit data is in

token_count

events withrate_limits

payload (fields:primary.used_percent ,secondary.used_percent

,plan_type

,resets_at

).

Metadata #

Metadata #

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Labels

appIssues related to the Codex desktop appIssues related to the Codex desktop app

bugSomething isn't workingSomething isn't working

rate-limitsIssues related to rate limits, quotas, and token usage reportingIssues related to rate limits, quotas, and token usage reporting

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Fields

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