BYOK: Produce Unlimited Chapters with Your Own API Key
In the Profi plan, you can use your own OpenAI API key — and produce as many chapters as you want. Here's how to set it up.
What Is BYOK?
BYOK stands for Bring Your Own Key. Instead of using SYMBAN's built-in access, you provide your own OpenAI API key. All text generation then runs through your OpenAI account — and the monthly chapter limit disappears.
What this means:
- The Pro plan ($399/month) includes 25 chapters per month — plus BYOK
- With BYOK: unlimited chapters, no cap
- You pay for text generation directly to OpenAI — SYMBAN remains your production software
Why Is This an Advantage?
1. Unlimited Production
Writing a 20-volume series? A single volume has 14 chapters? The Pro plan covers almost two volumes per month with 25 chapters. With BYOK enabled: no cap — you produce as much as you want.
2. Full Cost Control
You see exactly what each chapter costs in your OpenAI dashboard. From our production data: one chapter costs approximately $1.55 on average (as of April 2026). That's a fraction of what a human ghostwriter would charge.
3. Transparency
No hidden markups. SYMBAN earns from the subscription, not from text generation. With BYOK, you pay OpenAI directly at their standard pricing.
4. Independence
Your API key belongs to you. You can change it, revoke it, or set a different spending limit at any time.
What Does It Cost at OpenAI?
An honest breakdown from real production (PANATHINAIA, April 2026):
| Cost | |
|---|---|
| 1 scene (~1,000 words) | ~$0.34 |
| 1 chapter (~4 scenes) | ~$1.55 |
| 1 volume (~14 chapters) | ~$20 |
| 1 series (20 volumes) | ~$250 |
For comparison: a ghostwriter charges $3,000–10,000 per volume. See our cost comparison for details.
How to Set Up BYOK
Step 1: Create an OpenAI Account
Go to platform.openai.com and create an account. If you already use ChatGPT: the API uses a separate billing area with its own credits.
Step 2: Add Credits
At platform.openai.com/settings/organization/billing, add credits. We recommend $20–50 to start. That's enough to produce a complete volume.
Step 3: Create an API Key
- Go to platform.openai.com/api-keys
- Click "Create new secret key"
- Name the key (e.g., "SYMBAN")
- Important: Copy the key immediately — it's only shown once
Step 4: Enter the Key in SYMBAN
- Open SYMBAN and go to Settings
- Under "API Key", paste your OpenAI key
- Click "Save"
- From now on, you produce with your own key — no chapter limit
Frequently Asked Questions
Do I still need a SYMBAN subscription? Yes. BYOK is included in the Pro plan. The subscription gives you access to the production software (pipeline, memory, consistency checking, export). The API key is only for text generation.
Can I set a spending limit at OpenAI? Yes. In your OpenAI usage limits, you can set a monthly spending cap.
What happens when my credits run out? The pipeline stops with a clear error message. Your existing chapters are preserved. Simply add more credits and restart the scene.
Which OpenAI model does SYMBAN use? SYMBAN automatically uses the best available models (currently GPT-5.4 for text generation). No configuration needed on your end.
Conclusion
BYOK is the option for everyone who wants to produce seriously — series, high output, full control. You pay $399/month on the Pro plan for the best novel production software (BYOK included) and approximately $1.55 per chapter directly to OpenAI. No limits, no surprises.
Get started now and activate BYOK with the Pro plan.