ChatGPT Plus vs Midjourney vs Runway: What You're Actually Paying For
The subscription stack nobody budgets for
If you're building anything with AI — a side project, a content pipeline, a small SaaS — you've probably ended up with more than one AI subscription. ChatGPT Plus for text. Midjourney for images. Maybe Runway for video. Each one looks reasonable on its own. Added together, they aren't.
Here's the actual math:
| Tool | Monthly cost | What you get |
|---|---|---|
| ChatGPT Plus | $20 | GPT-4 class chat, capped usage |
| Midjourney (Standard) | $30 | ~15 hours of fast image generation |
| Runway (Standard) | $15 | Limited video generation credits |
| Total | $65/mo | Three separate accounts, three separate bills |
That's $780 a year — whether you use each tool heavily or barely touch it some months.
The problem isn't the price. It's the shape of the price.
Flat subscriptions are a bad fit for spiky, project-based usage, which is how most indie builders and small teams actually use AI tools. You might generate 200 images during a sprint, then none for three weeks. You might need video for exactly one launch trailer this quarter. A flat monthly fee charges you the same whether you're in a heavy-usage week or a dead one.
This is the same reason serverless compute replaced a lot of always-on servers — paying for what you use lines up incentives better than paying for access you might not need.
What pay-per-request actually looks like
With a usage-based API (KodaAPI, in this case, but the principle applies generally), the same $20 you'd spend on ChatGPT Plus alone can instead cover:
- Thousands of chat completions, or
- A few dozen high-quality image generations, or
- A handful of video clips, or
- Some mix of all three, depending on what your project actually needs that week
No unused capacity expiring at the end of the month. No three separate logins. No reconciling three invoices when you're trying to figure out what a project actually cost to build.
When flat subscriptions still make sense
To be fair, flat-rate subscriptions aren't always the wrong call. If you're a heavy daily user of one specific tool — say you're a full-time Midjourney artist generating hundreds of images a day — a flat plan can work out cheaper than metered pricing. The break-even point depends entirely on your volume.
The miscalculation most indie builders make is assuming they need that volume across three different tools simultaneously, when in practice usage is uneven and exploratory, especially early on.
The practical takeaway
Before signing up for a third or fourth AI subscription, it's worth asking: do I actually use this enough to justify a flat fee, or am I paying for access I'll use a handful of times this month?
For most solo builders and small teams, a single API key with metered, pay-per-request pricing across text, image, and video ends up both cheaper and simpler to manage than stitching together separate subscriptions for each modality.