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"One day, my ChatGPT or Claude account suddenly stopped working." In 2026, reports of account suspensions (bans) and warnings like this are rising. For people who use these tools daily for work or development, it's a serious problem. The scary part is that you can get banned by "accidentally breaking the terms" — even with no bad intent.
This article organizes what you need to know to avoid losing your account on OpenAI (ChatGPT, Codex) and Anthropic (Claude, Claude Code), based on published usage policies and reports. Note: this is not a guide to evading detection — it's a practical guide to "staying compliant so you can keep using these tools safely." Always confirm the latest official terms for the final word.
You can be banned for ToS violations — even without bad intent
— Know the main ban triggers and prevent them ahead of time
⚠️ The most common in 2026 was #6: using OAuth tokens in third-party tools
* This article quotes each company's published usage policies, help docs, and news reports (as of June 2026). Terms change, so always confirm with the latest official sources; this is general guidance, not legal advice — check the provider or an expert for specific cases.
1. Why accounts get banned (common reasons)
Both OpenAI and Anthropic, when they detect use that violates the Usage Policy, take graduated action: warning → temporary suspension → permanent termination. The five main triggers common to both:
🚫 Banned content / jailbreaks
Illegal or harmful generation (CSAM, harassment, etc.), or trying to break safety filters via prompts. Serious violations can mean an instant permanent ban.
🤖 Unauthorized automation / scraping
Using bots, scrapers, or automation scripts, or deceptive mass-automated access like spam and phishing.
🔑 Sharing / reselling accounts or API keys
Sharing or reselling credentials, or misusing API keys. "How you use the account" is what's judged.
🌐 Suspicious access patterns
Frequent IP/country changes, heavy VPN use, switching devices/browsers too often. Fraud detection reads it as abnormal logins.
💳 Payment mismatch / fraud
Geographic gaps between sign-up and payment location, suspicious payment methods, billing trouble. Automated fraud detection fires.
The key point: even if you're doing nothing wrong, a pattern that merely "looks suspicious" can trip automated detection. People who use VPNs, foreign payment methods, or multiple devices can unintentionally raise their risk.
2. The biggest 2026 pitfall: misusing OAuth tokens
In early 2026, a large wave of bans hit Claude and alarmed many users. The main cause wasn't banned content — it was "using OAuth tokens obtained from a personal plan (Free/Pro/Max) in third-party tools or services."
The crux: using Claude's personal-plan (Free/Pro/Max) credentials (OAuth tokens) in any product, tool, or service other than the official Claude app — including "harnesses" like the Agent SDK — is treated as a violation of the Consumer Terms of Service. The landmine is "pulling a subscription plan's rights into an unintended channel." The classic mistake is plugging a personal-plan token into your own tool or a third-party client to save money.
The correct approach: to run an app or agent, use the API (pay-as-you-go). Treat personal plans as "for chatting with the official app yourself." As covered in the distillation article, the 2026 rule of thumb is that "which channel and which use, under the terms" decides what's allowed.
3. OpenAI (ChatGPT / Codex): what to watch
The most commonly reported issues on the OpenAI side:
- Circumventing safety filters / access restrictions: jailbreaks or attempts to break limits.
- Automation / scraping: hitting ChatGPT with bots or scripts.
- Improper sharing / reuse of API keys: mismanaged or repurposed keys.
- Illegal or harmful uses: fraud, hacking assistance, malware generation.
* For coding uses like Codex, terms and automation are judged in the same framework.
4. Anthropic (Claude / Claude Code): what to watch
On the Anthropic side, besides the OAuth issue above:
- Don't use personal-plan OAuth tokens in third-party tools (the main cause of 2026's ban wave).
- Unauthorized third-party access: using unofficial clients is a terms risk.
- Anti-distillation / competing-model clauses: using outputs to build competing models is prohibited (see model distillation).
- Jailbreaks / harmful generation: breaking safety measures invites severe action.
* If you use Claude Code, stick to API keys or officially sanctioned usage to stay safe.
5. A checklist to avoid bans
It's not hard in practice. It comes down to "use the right plan, for the right purpose, honestly." Nail these seven points.
Read the Usage Policy once. Know the prohibited items.
Use the plan that fits the purpose. Apps/automation = API (pay-as-you-go); personal chat = official app's personal plan.
Don't put personal-plan tokens into third-party tools (the biggest 2026 pitfall).
Don't touch jailbreaks or banned content. Never try to break safety filters.
Don't share or resell accounts/API keys. Keep keys secure.
Pay with a method matching your region; keep access stable. Avoid heavy VPN use and frequent country switching.
If a warning arrives, fix it immediately. A warning is a "chance to correct" — don't ignore it.
For company use, spell out in your internal AI usage guidelines that "personal-plan tokens must not be used in business tools" and "use the API under a proper contract" — this prevents organization-wide incidents.
6. If you're warned or banned (appeals)
If you get a warning or suspension, stay calm and check the following.
- For a warning: stop the likely-offending usage and adjust to comply. Most can continue after correcting.
- Minor / accidental violations: you may be able to appeal to official support. Explain the situation honestly.
- Serious violations (deliberate attempts at harmful generation, etc.): usually a permanent ban, and recovery is often difficult.
* Whether relief is possible depends on each company's policy and the case. Check the latest official help.
Summary
Most account bans stem from "insufficient understanding of the terms" and "a plan/purpose mismatch." Because they can happen even without bad intent, prevention matters.
Key takeaways
- 🚫 Common ban reasons: banned content/jailbreaks, automation abuse, sharing/reselling, suspicious access, payment fraud.
- ⚠️ Biggest 2026 pitfall: using personal-plan (Free/Pro/Max) OAuth tokens in third-party tools / the Agent SDK is a ToS violation.
- 🔧 The right way: apps/automation via API (pay-as-you-go); personal chat via the official app.
- ✅ Defense basics: read the terms, match plan to purpose, don't share, don't jailbreak, stable access, act on warnings.
"The right plan, for the right purpose, honestly." Keep that and you can keep using both ChatGPT and Claude with peace of mind. See also internal AI usage guidelines, prompt input cautions, and model distillation and the terms.
FAQ
Q. Can I get banned just from normal work use?
A. Normal, policy-compliant use is generally fine. Risk rises with jailbreaks/banned content, putting personal-plan tokens in third-party tools, sharing accounts, or suspicious patterns from VPNs/foreign payments. If none apply, there's no need to over-worry.
Q. Is it OK to use Claude Code (or Codex) from my own tool?
A. Reusing personal-plan OAuth tokens in third-party tools (including the Agent SDK) is treated as a terms violation and was the main cause of 2026's ban wave. To run your own tool or app, use a proper API key (pay-as-you-go).
Q. Does using a VPN make a ban more likely?
A. A VPN itself isn't an instant ban, but frequent country/IP changes in a short time make fraud detection more likely to flag abnormal logins. Stable access and payment matching your region are safest.
Q. Can I recover a banned account?
A. For minor or accidental violations, an appeal to official support may restore it. For serious violations like deliberately generating harmful content, it's usually a permanent ban and hard to recover. Prevention by compliance is the best policy.
