28日目 · 保存済みリセット · 出典で確認済み
記録の原文（英語）
Banked reset
Tibo reported that the banked reset has been processed.
As stated in the original post.
Banked reset only; this is not a full reset.
Codex 28日チャレンジ：更新とリセットの記録
原文の取得に成功しました。
最終原文確認：2026/11/07 5:30 UTC · 内容更新：2026/11/02 7:00 UTC
日数はTibo自身の投稿に従います。記録がない日も、更新がなかったことを意味しません。原文の意味を保つため、記録本文は英語で掲載しています。
27日目 · 保存済みリセット · 出典で確認済み
記録の原文（英語）
Banked reset
Tibo reported that the banked reset has been processed.
As stated in the original post.
Banked reset only; this is not a full reset.
26日目 · 機能更新 · 発表済み
記録の原文（英語）
Switch between multiple accounts on mobile
Tibo said users can now switch between multiple accounts on mobile, with desktop support still coming later.
Mobile account switching
No reset announced for Day 26; banked resets were previewed for the next two days.
25日目 · 機能更新 · 発表済み
記録の原文（英語）
Usage limits doubled for Pro and Business Premium
Tibo said all usage limits are doubling for Pro 100/200/500 and Business Premium, while Pro 200 Work and Codex usage remains unchanged and dot usage stays separate for now.
Pro 100/200/500 and Business Premium
No reset stated in this update.
24日目 · 機能更新 · 発表済み
記録の原文（英語）
Text your dot like a contact
Tibo said users can text their dot to share or forward items, leave voice notes, and invoke it through Siri.
Dots via messaging and Siri
No reset stated in this update.
23日目 · 通常リセット · 出典で確認済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
出典での確認日時：2026/10/28 6:29 UTC
22日目 · 機能更新 · 発表済み
記録の原文（英語）
Terra returns with 2× more usage than 6.1 Sol
Tibo announced Terra's return, highlighting writing, personality, nuanced request understanding, computer use, and 2× more usage than 6.1 Sol across API and subscriptions.
Terra across API and subscriptions
No reset stated in this update.
21日目 · 通常リセット · 発表済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
20日目 · 通常リセット · 出典で確認済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
出典での確認日時：2026/10/25 6:06 UTC
19日目 · 機能更新 · 発表済み
記録の原文（英語）
Faster dot calls, preserved cache, and Codex CLI update
Tibo said dot calls connect faster, changing reasoning mid-conversation in Codex and Work no longer invalidates cache, and the Codex CLI was updated.
Dots, Codex and Work, and the Codex CLI
No reset stated in this update.
18日目 · 通常リセット · 発表済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
18日目 · 機能更新 · 発表済み
記録の原文（英語）
Builder roundup
Tibo's roundup included a builder-facing update.
API builders and relevant users
See the separate reset announcement from this post.
17日目 · 通常リセット · 発表済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
16日目 · 機能更新 · 発表済み
記録の原文（英語）
Day 16 feature announcement
Day 16/ You can now cache for 12h in the API and for logged in users across Codex & Work we keep cache forever and
As stated in the original post.
No reset stated in this update.
15日目 · 通常リセット · 発表済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
14日目 · 機能更新 · 発表済み
記録の原文（英語）
Edit previous messages in desktop threads
Tibo said users can now edit earlier messages within a thread in the desktop app.
Codex desktop app
No reset stated in this update.
13日目 · 通常リセット · 出典で確認済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
出典での確認日時：2026/10/17 21:12 UTC
12日目 · 機能更新 · 発表済み
記録の原文（英語）
More effective usage through context reuse
Tibo said Codex and Work now provide more effective usage by reusing subagent context, keeping context cached longer, and improving request routing to increase cache hits.
Codex and Work
No reset stated in this update.
11日目 · 機能更新 · 発表済み
記録の原文（英語）
Reduced model-capacity interruptions
Tibo said changes and additional compute should significantly reduce selected-model capacity interruptions and let affected tasks continue automatically.
Codex / Work model availability
No reset stated in this update.
10日目 · 通常リセット · 出典で確認済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
出典での確認日時：2026/10/15 6:28 UTC
9日目 · 機能更新 · 発表済み
記録の原文（英語）
Reduced desktop app disk usage
Tibo said state-storage optimizations for the ChatGPT and Codex desktop app should reduce disk usage by about 60%.
ChatGPT and Codex desktop app
No reset stated in this update.
8日目 · 通常リセット · 出典で確認済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
出典での確認日時：2026/10/13 5:06 UTC
7日目 · 機能更新 · 発表済み
記録の原文（英語）
GPT-6.1 Sol default context increased to 500k
Tibo said the default context length for GPT-6.1 Sol in Codex and Work increased from 272k to 500k, roughly 80%.
GPT-6.1 Sol in Codex and Work
No reset stated in this update.
6日目 · 通常リセット · 出典で確認済み
記録の原文（英語）
Full reset
Tibo announced a full reset.
Global reset; check account eligibility.
Full reset; check account eligibility.
出典での確認日時：2026/10/11 4:01 UTC
5日目 · 機能更新 · 発表済み
記録の原文（英語）
Create and text dots from ChatGPT mobile
Tibo said users can create and text a dot entirely from the ChatGPT mobile app.
ChatGPT mobile app
No reset stated in this update.
5日目 · 機能更新 · 発表済み
記録の原文（英語）
Composer predictions
Tibo announced Composer predictions in the desktop app and said they are included in Pro plans without consuming usage.
Codex desktop app; Pro plans
No reset stated in this update.
4日目 · 機能更新 · 展開中
記録の原文（英語）
Faster steering. Sol ultrafast.
Adjust a running task in real time. Tibo announced faster steering alongside the rollout of GPT-6.1 Sol ultrafast.
Codex / Work; ultrafast also in the API
No reset announced in this update.
3日目 · 機能更新 · 出典で確認済み
記録の原文（英語）
Codex Cloud gets a follow-up update.
In a Day 3 encore, Tibo said Codex Cloud had been updated. The quoted Tailscale announcement describes connecting Cloud tasks to resources on a tailnet.
Codex Cloud users
This follow-up does not announce another reset.
3日目 · 保存済みリセット · 出典で確認済み
記録の原文（英語）
Banked reset for paid accounts.
Tibo announced a banked reset for paid accounts and later said it had landed. The original Day 3 post also mentioned GPT-6 in Chat.
Paid Codex and Work accounts, per the announcement
Banked reset credited, according to Tibo. Check your own account.
出典での確認日時：2026/10/08 3:44 UTC
2日目 · 通常リセット · 出典で確認済み
記録の原文（英語）
A full reset followed the Day 2 updates.
After the Day 2 roundup and community vote, Tibo said the reset had been processed. This records his public confirmation, not a check of your account.
Codex / Work; check account eligibility
Officially reported processed. Separate from a banked reset.
出典での確認日時：2026/10/07 3:35 UTC
2日目 · 機能更新 · 出典で確認済み
記録の原文（英語）
Free auto-review and builder updates.
Tibo's Day 2 roundup lists four changes: included auto-review, a simpler API, meeting notes, and the Decisions API.
Relevant Codex / Work users and API builders
Auto-review no longer draws plan usage; coding tasks still use usage.
2.1 · Auto-review is included
Tibo said auto-review is included and does not draw usage. This applies to the review feature, not the whole coding task.
Users signed in with ChatGPT
原文を確認 ↗2.2 · A simpler API for builders
The roundup lists an API simplification for builders. This is a developer-facing change, not a subscription quota reset.
API builders
原文を確認 ↗2.3 · Meeting notes are integrated
The roundup lists meeting notes integration. Availability depends on the product and account; it does not refill Codex usage.
Eligible meeting-notes users
原文を確認 ↗2.4 · Decisions API is live
Tibo said the Decisions API is live for builders and the team plans to use it to improve the app experience.
API builders
原文を確認 ↗1日目 · 機能更新 · 展開中
記録の原文（英語）
Faster default model speed.
Tibo announced roughly 50% faster default speed for GPT-6 Astra and GPT-6.1 Sol through subscriptions and Sign in With ChatGPT partners. No settings change was required. The speed figure is his claim, not our benchmark.
Subscriptions and supported ChatGPT sign-in partners
A speed update, not a confirmed quota reset.
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28日間の約束の原文 ↗