Your AI platform subscription costs $49/month. Your actual AI usage might cost $8/month if you bought it directly from OpenAI. That $41 gap? That's the bundled AI markup — and it's what BYOK (Bring Your Own Key) eliminates.
BYOK is one of the most impactful (and underused) features in modern AI platforms. This article explains exactly what it is, why it matters, how to calculate your savings, and how Mai.today implements it.
Why BYOK Exists: The Problem It Solves
The traditional AI platform model works like this: you pay a subscription, the platform provides bundled AI credits. This is convenient but has real costs:
- Usage limits: Heavy users burn through monthly credits and get throttled or forced to upgrade
- Opaque markup: You don't know exactly how much the platform charges per API call — and markups are often 3-10x the actual API cost
- Model lock-in: The platform decides which AI model you use, often the cheapest one they can still charge a premium for
- Vendor lock-in: Your workflows are tied to the platform's AI layer, making it hard to switch even if pricing changes
BYOK breaks each of these problems. When you bring your own Key, you pay the AI provider's published rates, you choose your model, and your usage scales without hitting platform-imposed limits.
Cost Comparison: BYOK vs. Bundled AI
Scenario: a solo creator using AI for customer service Bot and task management, approximately 5 million tokens per month.
| Approach | Platform fee | AI cost | Total |
|---|---|---|---|
| Traditional bundled AI platform | $49/month | Included (with cap) | $49-99/month |
| Mai.today Pro + BYOK (GPT-4o) | $29/month | ~$12.50 (OpenAI direct) | ~$41.50/month |
| Mai.today Pro + BYOK (Gemini Flash) | $29/month | ~$0.75 (Google direct) | ~$29.75/month |
The Gemini Flash scenario saves ~$20-70/month compared to bundled alternatives. At scale, that compounds significantly.
Which Models Can You Use with BYOK?
- OpenAI — GPT-4o, GPT-4o mini, o1, o3-mini: platform.openai.com
- Anthropic — Claude 3.5 Sonnet, Claude 3 Opus: console.anthropic.com
- Google — Gemini 1.5 Pro, Gemini 2.5 Flash: aistudio.google.com
Model selection guidance:
- High-volume FAQ responses → Gemini Flash (lowest cost, fast)
- Complex reasoning, nuanced writing → Claude Sonnet or GPT-4o
- Structured data extraction → GPT-4o mini (good balance of cost and accuracy)
How Mai.today Implements BYOK
Available on Pro plan ($29/month) and above. Setup takes under 2 minutes:
- Go to Mai.today Settings → Bot Settings → AI Model
- Select "Use my own API Key"
- Choose your provider (OpenAI, Anthropic, or Google)
- Paste your API Key
- Select your preferred model
- Save — all Bots now use your Key
After setup, you can verify usage directly in your OpenAI/Anthropic/Google dashboard. Every API call your Bots make will appear in your usage logs with exact token counts and costs.
Security Best Practices
- Create a dedicated BYOK Key: Don't reuse a Key that's used for other services. If it ever needs to be revoked, it only affects your Mai.today setup.
- Set spending limits: OpenAI and Anthropic both allow monthly spending caps in their dashboard. Set one — even $50/month as a safety ceiling.
- Review the platform's encryption: Mai.today stores Keys with AES-256 encryption. Keys are only decrypted during actual API calls, never stored in plain text, never transmitted to other services.
- Monitor usage: Check your API dashboard weekly for the first month to understand your Bot's consumption patterns.
Learn more about what Bots you can power with your BYOK Key: What is Mai.today? Complete Platform Overview
Take control of your AI costs
Mai.today Pro supports BYOK. Pay for platform features, not AI markups.
Start Free with Mai.todayFAQ
Do I need a credit card to get an API Key from OpenAI?
Yes — OpenAI, Anthropic, and Google Gemini all require a credit card to activate API access. You pay per usage. For light to moderate use, costs are very manageable; Gemini Flash's free tier is generous enough to test before committing.
What happens if I don't set up BYOK? Can I still use Mai.today?
Yes. Without BYOK, Mai.today uses its own AI pool for your Bots. This is included in all plan tiers but has usage limits. BYOK is optional — use it when you want unlimited usage or specific model access.
Can I switch between BYOK and bundled AI credits?
Yes. You can toggle BYOK on/off in settings. If your API Key hits an unexpected limit, the Bot can fall back to bundled credits (configurable in settings).
Which model should I start with for BYOK?
For customer service Bots with high volume: Gemini Flash (cheapest, very fast). For PM Bots where quality matters more: GPT-4o mini. For complex analysis tasks: Claude Sonnet. Start with Gemini Flash for cost efficiency and upgrade if you need better quality.