tutorials· 4 min read

How to Connect Your ChatGPT Plus Subscription to Poko Motion

Poko Motion can run its agent on OpenAI's Codex runtime instead of Claude - here's how to connect your own ChatGPT account, what plan you need, and what it actually changes about billing.

By disha Sharma
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Poko Motion tutorial cover: connecting a ChatGPT Plus account to switch the Codex agent engine, showing the Claude-to-Codex switch and OpenAI billing connection

Poko Motion doesn't run on a single AI model behind the scenes. It supports two separate agent runtimes - one built on the Claude Agent SDK, one built on OpenAI's Codex SDK - and you can choose which one actually powers your video builds. Connecting your ChatGPT Plus account lets Codex-powered agent turns bill through your own OpenAI subscription instead of Poko's AI-dollar credit wallet.

This isn't a workaround or an unofficial integration. It's a built-in setting, gated to specific Poko plans, using OpenAI's own hosted sign-in flow rather than a pasted token you manage yourself.

What Connecting ChatGPT Actually Changes

Codex vs. Claude: Poko's two agent runtimes

Under the hood, Poko normalizes both runtimes into the same message format, so the chat interface looks identical whichever engine is running - but they are genuinely different execution paths, not a skin over one model.

You pick the engine in Poko's model settings, and that choice determines which subscription connection, Claude or ChatGPT, actually applies to your account.

What changes once it's connected

Once your ChatGPT account is linked and Codex is selected as the engine, agent and model usage for that engine is billed directly by OpenAI against your own plan, rather than drawing down Poko's AI-dollar credits.

Your Poko subscription itself still covers the app, rendering, and everything outside the agent's own reasoning and tool calls.

Why this matters if you already pay for ChatGPT Plus

If you're already paying $20 or more a month for ChatGPT Plus for unrelated work, running Poko's agent turns through that same subscription means you're not funding a second, separate pool of AI usage just for video builds.

For teams already standardized on OpenAI tooling, it also keeps agent usage inside the billing and rate-limit relationship they already manage, rather than adding a third provider to track.

Which Poko Plan You Need First

This connection isn't available on every tier. It's restricted to Poko's Pro and Agency plans - whether monthly, annual, or one of the lifetime editions.

Lower tiers, including the Starter plan and entry-level lifetime deals, can't connect a ChatGPT or Claude subscription at all, though they may still be able to paste a raw OpenAI API key if bring-your-own-key access is enabled on that plan. If you're on a lower tier and want this, the plan itself - not a hidden setting - is what's blocking it.

Step-by-Step: Connecting Your ChatGPT Plus Account

Step 1: Switch the agent engine to Codex

In Poko Motion's model settings, set the agent engine to Codex rather than Claude. This is what determines which subscription connection option appears next; the Claude connection option only shows up when Claude is the selected engine.

Step 2: Start the connection

Click to connect ChatGPT. Poko doesn't handle the sign-in itself - it hands off to OpenAI's own Codex sign-in process, which opens in your system browser rather than an embedded window.

You'll authenticate directly with OpenAI, the same way you would signing into ChatGPT anywhere else, and OpenAI's own login page - not Poko's - handles your credentials.

Step 3: Confirm the connection

Once sign-in completes, Poko reads back your account status, including which account is connected and its plan type, so you can confirm it's actually your subscription and not a fallback.

If you've also pasted a raw OpenAI API key, note that the pasted key takes priority over the connected subscription - Poko will use the key first, so remove any saved key if you specifically want usage to route through your ChatGPT plan instead.

What This Does - and Doesn't - Cover

Connecting ChatGPT shifts the cost of agent and model usage for Codex-powered turns onto your own OpenAI plan. It's still subject to whatever usage limits OpenAI applies to your ChatGPT plan through its own Codex access - the same limits you'd hit using Codex directly outside of Poko, not a separate or more generous allowance.

It does not make Poko itself free - your Poko subscription is still what unlocks the feature in the first place, along with rendering and everything else the app does outside agent reasoning.

It's also worth knowing this is separate from Poko's agent gateway routing, which lets Pro and Agency plans route model calls through providers like OpenRouter. That's a different setting for a different purpose: gateway routing changes which model answers a request, while connecting ChatGPT changes who's billed for a Codex request you were already going to make.

The Takeaway

If you're already paying for ChatGPT Plus and building videos with Poko's Codex engine, connecting the two means you're not paying twice for the same AI usage - but only on Pro and Agency plans, and only for the Codex side of things. Check your plan first; if you're not on Pro or Agency, that's the actual step to take before anything else.

Disha Sharma
About the author

Disha Sharma

Marketing, Poko Motion

Writes about AI video workflows, product storytelling, and motion video.

FAQs

Poko doesn't hard-gate the connection to a named ChatGPT tier itself, but it uses OpenAI's own hosted Codex sign-in to complete the link, so your ChatGPT plan needs to be one OpenAI has enabled for Codex access. In practice, that means a paid ChatGPT plan rather than the free tier.

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#poko motion tutorial#chatgpt plus#bring your own key#codex#ai video generator
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