Bring your own subscription # Use your own Claude or ChatGPT subscription In ZeroLog, Claude Code signs in with your own Claude account and Codex with your own ChatGPT account. Both CLIs run in your Linux container in Switzerland. The vendor bills the usage on your plan, and nothing is charged to your ZeroLog credit. The ZeroLog chat itself does not use these subscriptions: it runs on open-weight models. Request access [See pricing](https://zerolog.ch/pricing) Closed preview. Accounts are opened on request. ~/project Example ``` # signed in once under Settings, AI accounts $ claude # billed by Anthropic on your plan $ codex # billed by OpenAI on your plan ``` ## What works with which subscription - **Claude subscription: Claude Code** Claude Code signs in with your own Claude account. Anthropic bills the usage on your plan, and that plan's limits apply unchanged. - **ChatGPT account: Codex** Codex signs in with your own account, the same way OpenAI's CLI does on a laptop. OpenAI decides how much Codex use your plan includes. - **Pay as you go: your API key** If you prefer, store a provider API key under Settings, Provider keys. The charge lands with that provider, and ZeroLog adds no margin. - **The ZeroLog chat** The chat in the browser runs on open-weight models from the ZeroLog catalogue, paid from credit or your own provider key. Claude and GPT models do not appear in its picker. ## Why run it here instead of on your laptop - **The work keeps going** The container is on a server. A /goal run continues when you close the tab, within your plan's time limit: 4 hours on Mini, 8 on Pro, 12 on Max, none on Ultra. - **Files stay in Switzerland** Your repository, build tools and caches stay on the container disk in Seon (Aargau) between sessions. - **Both CLIs, one place** Claude Code and Codex share the same container and files. You can switch between them, or between your plan and a catalogue model, without moving the project. Details: [Your own vendor subscription](https://zerolog.ch/docs/byoagent), [Claude Code and other CLIs](https://zerolog.ch/docs/cli), [Your own API key](https://zerolog.ch/docs/byok), [/goal](https://zerolog.ch/docs/goal). ## What ZeroLog does not do ZeroLog does not resell or share your subscription. It does not raise your vendor's limits, and it does not send a request that hit one somewhere else. The automatic fallback and the spend limits only cover models on ZeroLog's own provider keys. Prompts you send through your own account go to Anthropic or OpenAI under your contract, so their terms apply. Read them before you rely on this setup. ZeroLog is an independent service, not affiliated with, endorsed by or sponsored by Anthropic or OpenAI. Claude and Claude Code are trademarks of Anthropic. OpenAI, ChatGPT and Codex are trademarks of OpenAI. ## Sign in your own account 1. **Use a plan with a container.** The CLIs run in your container, so you need Mini or higher. 2. **Open Settings, then AI accounts.** Start the sign-in for Claude Code or Codex. 3. **Open the URL the CLI prints.** Sign in with your own account and paste the code back. It is the CLI's own sign-in; nothing is intercepted or replayed. 4. **Start the CLI in the container terminal.** ``` cd ~/project && claude ``` ## Questions - **Can I use my Claude subscription in ZeroLog?** Yes, through Claude Code in your container. You sign in with your own Claude account, and Anthropic bills the usage on your plan. Which usage your plan covers is set by Anthropic. - **Can I use my ChatGPT subscription outside ChatGPT?** In ZeroLog, through Codex: it signs in with your own account. Whether your plan includes Codex, and how much, is set by OpenAI. The ZeroLog chat itself does not use your ChatGPT plan. - **Do I pay ZeroLog for that usage?** No. The vendor bills you, and nothing reaches your ZeroLog credit. You pay ZeroLog for the plan that includes the container. - **Where is my sign-in stored?** In a volume that belongs to your account alone, on the server in Switzerland. - **Which plan do I need?** Mini or higher, because the CLIs run in your container. Current prices are on the pricing page. ## Keep reading - **[Swiss AI workspace](https://zerolog.ch/swiss-ai-workspace)** Chat with many models and a Linux container in one account. - **[Cloud development environment in Switzerland](https://zerolog.ch/swiss-cloud-dev-environment)** Where your files, your container and the model calls live. - **[Claude Code in the cloud](https://zerolog.ch/claude-code-cloud)** Your own Claude account, signed in inside a container. - **[Codex in a persistent container](https://zerolog.ch/codex-container)** OpenAI's Codex CLI with your own account. - **[AI coding agent with a persistent workspace](https://zerolog.ch/ai-coding-agent-workspace)** Files, snapshots, jobs and schedules that outlast a chat. - **[Open-source models for your coding agent](https://zerolog.ch/open-source-models)** The catalogue, how credit pays for it, and your own key. - **[ZeroLog Code](https://zerolog.ch/code)** Your workspace, in your terminal. - **[ZeroLog Extension](https://zerolog.ch/extension)** Your chat in the side panel of Chrome and Firefox. ## Keep your plan, add a machine Ask for access, then sign in your own account. Request access [See pricing](https://zerolog.ch/pricing)