I want to tell you I was doing something important.
I wasn't.
I've been building a research pipeline inside HexLocal. Dr. Priya Nair is my research agent. She fans out five or six sub-agents to pull sources, then distills everything into a single research artifact I can actually use. She's good at it. She's thorough. She goes fast.
When Fable 5 launched, I wanted to see what she'd do with it versus Opus 4.8. Just a side-by-side. There was a promotional period running on Fable 5, and I was under the impression — whether I misread something or got it wrong somewhere — that it would cost roughly the same as a normal session. A clean comparison at no real extra cost. The topic I gave her was about tokens — what they are, how they're calculated, what different models charge for them, the history of how they were developed. A deep dive for a podcast episode I've been planning. Standard research job.
I knew it would be high usage. The model told me so before we started. That warning came up right at the beginning: this will be high usage, click to proceed. I clicked. I thought it was standard. I thought I knew what I was getting into.
I did not know what I was getting into.
Dr. Priya fanned out immediately. Multiple agents, all running at once, all coming back fast with approval requests. I had other terminals open, other agents on other projects, so I'm bouncing between windows and the approvals are stacking up. What's the website? Approve. What's the website? Approve. They kept coming. I was laughing. Look at her go. She's really going for it.
I had my usage dashboard open in a browser window — you can watch the session there in real time, how much of your five-hour window is left, how much of your allowance is burned. I was already around fifteen percent when we started. I noticed it climbing.
Fifty percent. Still going.
Sixty. Sixty-five. Approve, approve, approve.
At some point it looked like the agents were wrapping up. The synthesis was starting. The distillation — the part where Dr. Priya takes everything the sub-agents found and turns it into something I can use. I could see it beginning.
Then it froze.
Something along the lines of: if you want to continue, upgrade your plan or add funds. I checked the usage bar. Still showed thirteen, maybe fifteen percent remaining. Odd. I hit refresh.
Red. One hundred percent.
The session was done. Pay to extend it, or wait an hour and forty-five minutes for the window to reset. I had burned through Max (5x) — not the highest tier available, there is a 20x above it, which I now think about differently — researching how tokens work.
I never got to read the research.
I almost always learn something from what Dr. Priya brings back. This time I learned something without getting it back.
Here is what I know now that I did not know before: whatever promotional period is running on Fable 5 does not reduce the total amount of tokens that thing is going to burn. I don't know if I misread something or got bad information somewhere, but I walked in thinking the promo made the comparison fair. It did not make the comparison fair.
The warning was there. I clicked through it.
The picture at the top of this piece is the screenshot I took right after the session ended. I kept it because I knew I was going to write about this eventually. I just didn't know what story I was going to tell.
I thought it was going to be about the distillation quality. About what Fable 5 found that Opus might have missed. Something worth citing.
What actually happened is that I learned about token consumption through direct and total experience, while researching how token consumption works, and I never got to read what my own research agent found about it.
Shout out to Dr. Priya Nair. She gave it all she had, and Fable 5 took every drop of it.