What's the Real Value of Your Codex and Claude Max Subscription?
30/05/2026 • Melvynx
For several weeks, I analyzed the real value of my Claude Max and Codex subscriptions at $200/month.
The goal was simple: figure out which one has, in quotes, the most "value".
I hooked a script onto my local logs (.codex and .claude) to recompute, token by token, what my usage would have cost at official API pricing.
The conclusion surprised me. But first, the numbers.
The Codex Subscription at $200/month
For $200 a month, Codex gives you the equivalent of $8,610 in API value.
That's a 43x multiplier.
In other words, you only pay 2.3% of the real API price. That's a 98% discount.
What's interesting with Codex is the token breakdown. The vast majority of what you consume is input tokens (re-read context).
Over the measured window:
- 2.4 billion cached inputs (re-read context, billed at a reduced rate)
- 105 million uncached inputs (the first read, full price)
- 7.44 million outputs (the actual work generated)
A lot of these tokens are cached, and that's exactly what feeds into the value calculation.
The Claude Max 20x Subscription at $200/month
Same price, $200 a month, but this time Claude Max gives you the equivalent of $18,900 in API value.
That's a 94x multiplier.
You pay roughly 1% of the real API price. That's an almost 99% discount.
Here too, the vast majority of tokens are input. But this time it's mostly cache reads: Claude re-reads a huge amount of context on every call.
When you read this chart, it looks like Claude Max is worth 2x more than Codex. $18,900 vs $8,610.
Except that's where it gets misleading.
Why Most of the "Value" Isn't Actually Work
I found this comparison weird. So I broke both down, separating input (re-read context) from output (the actual work generated).
And here's the surprise.
If you look only at output tokens (the one thing that actually measures the work delivered):
- Codex: ~$977 of output per month
- Claude Code: ~$911 of output per month
That's nearly identical. Around $900 of real work for each of them.
The big gap is entirely on the input side:
- Codex: only ~$7,600 to $8,000 of input tokens
- Claude Code: between $11,000 and almost $18,000 of input tokens
So 100% of that famous "2x" comes from input and cache accounting, not from the work delivered.
When you look at the real value each tool brings you (the output), you get roughly the same thing on both sides. And that's what actually defines a tool's value: what it produces, not how much context it re-reads to itself.
Conclusion
Here's what's probably happening, and it's a combination of two things:
- Claude Code uses a 1 million token context. The bigger the context, the more tokens it re-reads (cache reads) on every agent call. And since one call = resending the entire accumulated context, the read-token count explodes mechanically:
context size × number of calls. - Claude Code's internal code seems less optimized than Codex's when it comes to cache handling. For the same work, Claude re-reads about 2x more context per output token than Codex. Codex is clearly leaner: it resends less context to produce the same result.
The result: Claude Code racks up an insane number of read tokens, which inflates the "apparent" cost, while Codex consumes far fewer to produce the exact same output.
On top of that, two traps:
- Anthropic charges 2x more for "cache writes" ($10/1M vs $5/1M on Codex for the first read). Same tokens, same work, but a pricier rate card that inflates the "value".
- Claude's figure is extrapolated from a single day at 10% of the quota, then multiplied by ~10. A slightly heavy day blows up the estimate. The Codex figure, on the other hand, is measured at 99% of the quota: basically real.
So the honest statement is:
Both $200 subscriptions deliver roughly the same real work (~$900 of output). Claude's number only looks 2x bigger because of cache billing differences and a shaky extrapolation.
The trap is the word "value". API-equivalent value measures what the provider's meter would charge. So it rewards big contexts, massive cache re-reads, and a pricier rate card. A plan can show "2x more value" while delivering the exact same work.
That's exactly what's happening here.
If you want to push these tools to their limit, you still need a killer config. For that:
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