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Claude vs. Codex Quota War (September 2026): Both Companies Cut You — Here's Why I'm Backing Claude

#AI#Claude#Codex#ChatGPT#subscription plans#quota#comparison

Let's get the verdict out of the way: in September 2026, I'm Team Claude.

Not because Anthropic is innocent. On September 14 it cut your weekly quota and dressed it up as a boost — I'll show you the math below. But on September 22 it shipped Opus 5.5: cheaper, a bigger quota, and still the top-scoring model on the board. Over at OpenAI, Codex switched to GPT-6 Astra and the same monthly fee now buys you a lot less. As of today, there's still no real fix for that.

I pay for both, and this month's bill hurt. I've linked everything below — official statements, Reddit users' own measurements, and stuff nobody's confirmed yet — all mixed together so you can judge for yourself.

My August roundup of AI subscription plans across every price tier covers the whole market. This piece is just about these two companies, in September.

What Happened in September: A Timeline

Date What Happened Source
Aug 29 Anthropic announces a "permanent 25% increase" to Claude Code's weekly quota starting Sep 14; the current +50% boost holds until then Official (via BleepingComputer)
Sep 8 US CISA/NSA/FBI issue joint advisory AA26-251A, naming Chinese AI firms "distilling" US models at industrial scale Official
Sep 8 r/codex user finds GPT-6 Astra pinging itself for a status check every 30 seconds, burning tokens for nothing Community
Sep 10 r/codex user tests two top-tier Pro accounts: usable weekly quota cut by more than half Community
Sep 14 Claude's boost drops from +50% to +25%; same day, an r/codex Plus user reports their quota got cut in half Official + Community
Sep 16 r/ClaudeAI user measures weekly quota down about 19% Community
Sep 19–21 Multiple r/codex posts accuse OpenAI of secretly downgrading model quality Community
Sep 22 Anthropic ships Opus 5.5: lower price, bigger 5-hour quota, plus a one-time quota reset you can bank for later Official
Sep 23 onward Multiple r/ClaudeAI users report quota burning noticeably slower Community

OpenAI: Same Price, Smaller Bowl

Let me give OpenAI its due first: calling this a "secret cut" isn't quite fair. Its official pricing page does list exactly how many credits each model burns (checked 2026-09-27):

Codex Model Credits per 1M input tokens Credits per 1M output tokens
GPT-6 Astra 250 credits 1,250 credits
GPT-5.6 Sol (previous flagship) 100 credits 500 credits
GPT-6 Sol 50 credits 250 credits
GPT-6 Luna 2.5 credits 12.5 credits

That table is the problem. Astra burns 2.5 times the credits per token that the previous flagship, GPT-5.6 Sol, did. Your monthly fee didn't change — Plus is still $20, Pro is still "from $100, 5x or 20x" — but switch to Astra and the same bowl of rice is now 40% the size. Turn on Fast mode and it's another 2.5x on top of that, straight from the official page.

It's like a restaurant that keeps the menu price exactly the same, swaps in a smaller bowl, and tapes a conversion chart to the door that nobody can actually decode. Legally, they disclosed it. For the average user, that's about the same as not disclosing it at all.

The numbers Reddit users measured line up with that:

  • On Sep 10, a user running two top-tier Pro accounts reported their weekly API-equivalent quota dropped from over $2,500 on GPT-5.6 Sol to about $1,200 on Astra (r/codex). They also found Astra's cache only holds for 30 minutes versus 24 hours on GPT-5.6 Sol — a shorter cache means you pay again for anything you re-read.
  • On Sep 8, another user found that when Astra acts as the "manager" delegating work to Luna, it wakes itself up every 30 seconds to ask "are you done yet." Those check-ins alone made up 68% of the manager's input tokens, and burned their 5-hour quota from 53% to 100% in 33 minutes (r/codex). That's a bug in the Codex tool itself, not user error.
  • On Sep 14, a Plus user posted a screenshot showing 16% of their weekly quota and their entire 5-hour quota gone in six minutes (r/codex); on Sep 17, a Pro user said they were down to their last 10% after two or three days and felt ripped off (r/codex).

These numbers are all community-measured, not published by OpenAI. But several people measured independently and got the same result, and it matches the official credits table.

"Secretly Downgraded": What's Confirmed and What Isn't

The hottest accusation on r/codex in late September was that OpenAI swaps you onto a weaker model without telling you (r/codex, Sep 19). I want to break this into three layers, because it's easy to overstate:

  1. Confirmed: OpenAI does have systems that detect "distillation" (using its model outputs to train competing models). President Brockman said so publicly in July (Semafor), and the US government's advisory on Sep 8 named this kind of behavior too.
  2. Support said this: On Sep 21, a user running five top-tier Pro accounts posted a Sep 14 reply from OpenAI support, paraphrased as: "even on paid accounts, some models or features may be temporarily restricted based on account activity; we can't share more details, and the system re-evaluates automatically" (r/codex). That's relayed by the poster, I can't see the original email.
  3. Unverified: Does "restricted access" equal "secretly swapped to a weaker model"? Even the original poster admits support's statement doesn't prove that. As for being falsely flagged as a distillation account, that's community speculation for now.

So I won't write "OpenAI is swapping your model." What I will write is: you paid, your account might get restricted, and OpenAI won't tell you why or when it'll be lifted. That alone is bad enough. The worst thing in coding isn't a weak model — it's a model that's different today than it was yesterday, and you have no way of knowing.

Anthropic: Selling a Quota Cut as a Boost

Now for Claude. Anthropic's Aug 29 announcement said, verbatim: "Starting September 14, Claude Code's standard weekly quota gets a permanent 25% increase; until then, the current 50% boost stays in place." (via BleepingComputer)

Read it twice and it clicks: you had 150%, and on Sep 14 that becomes 125%. That's a 17% cut, not a 25% increase. An r/ClaudeAI user measured it themselves and got about 19% (r/ClaudeAI, Sep 16). Dressing up a quota cut as a "permanent increase" — I'm not buying that spin.

There's something even more worth calling out: the name "Max 20x." The official line is "5x or 20x the usage of Pro" (claude.com/pricing), which makes most people assume 20x is 4 times 5x. Community testing says otherwise:

  • The same account upgraded from 5x to 20x saw its 5-hour quota go up 4.4x, but its weekly quota only went up 2.2x (r/ClaudeAI).
  • Another team has been tracking this since Aug 23: the 20x-to-5x weekly quota ratio slid from about 2.5x down to roughly 1.5x by Sep 22 (r/ClaudeCode).

This is community-measured too — Anthropic hasn't published the actual weekly quota numbers, so there's nothing official to check it against. But "20x" only holds up inside the 5-hour window; the weekly numbers fall way short, and several separate groups measured this independently and got the same answer. I think the name is misleading.

There's also a widely-shared post from Sep 20 claiming someone analyzed over 43,000 Claude Code calls and found 39% of Fable 5 calls skipped reasoning entirely (r/ClaudeAI). That number comes from a third-party analysis on X, and it's not confirmed by Anthropic — I'm treating it as "worth watching," not fact.

September 22: The Day Anthropic Clawed It Back

In Opus 5.5's official announcement (2026-09-22), here's what actually matters for paying users:

  • API pricing is $4/$20 per million input/output tokens, versus $5/$25 for Opus 5 — 20% cheaper; cache reads are 60% cheaper.
  • Output speed is more than 30% faster than Opus 5.
  • 5-hour quota increased for Pro, Max, and Team.
  • Subscribers get a one-time quota reset they can bank and use whenever they choose.

Worth noting: what got raised here is the 5-hour quota. There's no mention of the weekly quota being restored. That 17% cut from Sep 14 never came back. But starting Sep 23, multiple r/ClaudeAI users reported their quota was draining much slower than the week before on Opus 5.5 (r/ClaudeAI) — for a simple reason: the model got cheaper, so the same quota now stretches further.

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That same post also mentions $250 in cloud credits being handed out, but I couldn't find an official Anthropic page to verify it, so I'm not treating that as fact here.

Who's Actually Stronger: Artificial Analysis Only

For "which model is actually stronger," I only trust Artificial Analysis's Intelligence Index (checked 2026-09-27, using each vendor's top reasoning tier):

Model Intelligence Index API Price (input/output, per 1M tokens)
Claude Opus 5.5 58 (#1 overall) $4/$20
Claude Fable 5.1 53 $10/$50
GPT-6 Astra 53 $10/$50
Claude Opus 5 51 $5/$25
Claude Fable 5 50 $10/$50
GPT-5.6 Sol 47 $4/$20
GLM-5.3 45 $1.40/$4.40
DeepSeek V4 Pro 36 $1.32/$3.96
Gemini 3.1 Pro Preview 30 $2.00/$12.00

Two things stand out:

  • Opus 5.5 scores 5 points higher than GPT-6 Astra, at just 40% of Astra's API price.
  • On Terminal-Bench 4.0, the coding-specific benchmark, Opus 5.5 scores 59.6% — tied with GPT-6 Astra (Artificial Analysis). So Astra isn't weak at coding; it's the same capability, just charging you a lot more for it.

What I'd Actually Pick

Regular users, around $20/month: Claude Pro. Plus and Pro are both $20, but this month Claude's model tops the leaderboard and its 5-hour quota just got bigger. If you're already on ChatGPT Plus and don't want to switch, at least stop defaulting to Astra in Codex: use GPT-6 Sol for everyday work — it burns a fifth of the credits per token — and only reach for Astra when you're genuinely stuck.

Heavy coders considering Max: start with 5x, don't jump straight to 20x. If community measurements hold up, 20x only gets you 1.5 to 2.2 times the weekly quota of 5x — most of what you're paying extra for is the 5-hour window. Unless you're hitting the 5-hour ceiling every single day, 5x is the better deal. Fair's fair, though: an r/ClaudeAI user compared plans and found Codex's top-tier plan really does deliver 20x the weekly quota (r/ClaudeAI, Sep 15). If all you care about is the weekly total and you don't mind Astra burning fast, Codex's top plan isn't unreasonable.

Budget-conscious, comfortable hooking up your own API: GLM-5.3. It scores 45 on Artificial Analysis, just 2 points below the previous-gen GPT-5.6 Sol, at a fraction of the price. That said, September's US government advisory named its developer, Z.AI, by name — check your company's policy before putting this on a work account.

One last line for both companies: Anthropic got called out and actually fixed something; OpenAI, to this day, won't even tell you why your account slowed down. So this month, I'm Team Claude. Whoever nerfs their quota first next month gets the same treatment from me.

Common Misconceptions

  1. "OpenAI has admitted to secretly swapping models." No. Support only said accounts might be temporarily restricted, not that models get swapped — and that reply was relayed by the poster, I can't see the original email.
  2. "Claude's Sep 14 change added quota." Compared to August, it's a cut: from +50% down to +25%, about a 17% decrease.
  3. "Max 20x is 4 times 5x." That's roughly true for the 5-hour window, but community measurements put the weekly quota at only 1.5 to 2.2 times.
  4. "Now that Opus 5.5 is out, the Sep 14 cut is reversed." The official increase is to the 5-hour quota; there's no statement about the weekly quota being restored. It feels more generous mainly because the model got cheaper.

FAQ

Q: Why did Codex suddenly start burning through quota in September? Mainly because GPT-6 Astra burns 2.5 times the credits per token that the previous flagship, GPT-5.6 Sol, did (official pricing page). Add in the shorter cache window and Astra's habit of repeatedly checking in when acting as manager — both found by the community — and actual burn is even faster.

Q: How do I save quota on Codex? Use GPT-6 Sol for everyday work (a fifth of Astra's credits), and skip Fast mode (2.5x) unless you need it. For multi-agent workflows, someone in the community shared a config workaround for Astra's repeated check-ins (r/codex), but that's a user fix, not an official one.

Q: OpenAI says my account might be restricted — how do I know if I've been hit? There's no official way to check right now. OpenAI support says it won't share details and the system re-evaluates automatically. If the same model suddenly seems noticeably worse, test it in a fresh, clean conversation, keep timestamps and screenshots, and then contact support.

Q: What's this Sep 22 "quota reset" thing? Anthropic gave subscribers a one-time reset they can bank and use whenever they actually run out of quota (official announcement). My advice: save it for when you really need it, don't burn it the moment you get it.

Q: Is that Claude "39% of calls skip reasoning" thing real? Unverified. The number comes from a third-party analysis on X, and Anthropic hasn't responded to confirm it.

Q: Will this change again next month? Probably. Both companies have been adjusting quotas every few weeks this year. This article's data is current as of 2026-09-27 — I'll update if anything major shifts.

Sources (checked 2026-09-27)

Official:

Benchmarks (the sole fact-source for model strength):

Community reports (user-measured, not official numbers):

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