r/codex • • 1d ago

Megathread Codex Usage and Operation Discussion - last updated October 26

5 Upvotes

Please direct your concerns, questions and discussion about Codex usage limits and model performance here.

The purpose of this Megathread is to aggregate all the reports of people's experiences and possible suggestions instead of spreading them across many highly upvoted posts. The more people who participate in this discussion, the more likely you have an answer.

Reports with sufficient evidence on new information will still be allowed on the feed as usual.


Discussion of the prior period available here : https://www.reddit.com/r/codex/comments/1xa0sqf/codex_usage_and_operation_discussion_last_updated/


A reminder that all incidents on r/Codex are constantly logged and summarised so you can keep track of what people are experiencing here https://www.reddit.com/r/codex/comments/1tjfxcf/comment/on6uj0l/


r/codex • • 16d ago

Megathread Codex Comparison Megathread

9 Upvotes

This Megathread is for comparisons and discussion about how Codex and Codex models compare to other technology such as Claude Code and open source models.

Please direct all comparison discussion here.

Posts which give evidence of the relevant strengths and weaknesses and use cases of both will still be allowed on the feed but those pushing one tech over another because "feels" will be directed here. This is a Codex subreddit and it is here to help people using Codex.


FYI: The subreddit's semi-automated moderation is powered by Codex and GPT models and is only possible due to the ridiculously generous free API token quota of OpenAI's Terra and Luna models available to all users. No, we don't get secret benefits from OpenAI. The OpenAI models and offering are simply much better value for our purposes..... Period.


r/codex • • 8h ago

Humor Wtf is this Tibo 😭

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161 Upvotes

Tibo's doing everything he can to make us forget about the resets lmao

Source: https://x.com/thsottiaux/status/2115297093879472332?s=46


r/codex • • 10h ago

Reset Reset day + some new features

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194 Upvotes

Lands today midnight PST


r/codex • • 6h ago

Reset Day 23 reset has landed!

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94 Upvotes

Here we go again! Check your limits and have fun.

Source: https://x.com/thsottiaux/status/2115330127886463244?s=46


r/codex • • 20h ago

Humor I gave my last 3% of my Codex (20x) usage to...well.. Codex

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909 Upvotes

3% Till left


r/codex • • 3h ago

Praise Toyota vs Mercedes Benz

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43 Upvotes

Personally GPT-6.1 Terra replaced deepseek. Can't find a better Intelligence - $/task.

What would you drive from point A to B?

(intelligence index from the recent AA v5 release)


r/codex • • 18h ago

Comparison Cognition has released FrontierCode 2.0, a tougher benchmark for Al coding agents. The results are brutal: Claude Opus 5.5 leads with just 45.5%, followed by GPT-6 Astra at 42.8%.

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348 Upvotes

r/codex • • 5h ago

Complaint Allowance table update for GPT & competitors and Terra opinion

26 Upvotes

My commentary about the model at the bottom of the post.

For some time now I have been measuring GPT model's allowances and several others. Because a new GPT model was released, it is time for an update.

Unfortunately, the trend continues. With each new model release, the new model gets less quota in API-equivalent compared to the previous ones. Also, unfortunately, the claim that we get 2x the usage out of Terra compared to Sol is a straight-up lie.

Measured on a fresh context window on a Plus account for accurate measurements, like always. Context limited to 272k to make sure I don't go past the double price. I didn't check Luna or Astra yet, but Sol remains as it was. Generally the allowance for models is constant after their release from my measurements; only the new ones have less.

Name Per 5 hours Per week Per month (30 days) API cost÷Sub price ($20) ratio
GPT-5.6 Sol $14.4 $86.4 $370 18.5
GPT 6 Luna $6.5 $39 $167 8.35
GPT-6 Sol $11 $66 $283 14.15
GPT-6.1 Terra $5.33 $32 $137 6.85
GPT-6.1 Sol $7.8 $46.8 $200 10
GPT-6 Astra $10 $60 $257 12.85

For Pro, simply multiply by 5/10/25.

As a bonus, here is a table of the "real cost" per million tokens and total amount of tokens per real dollar spent, also compared to DeepSeek v4.1 Flash (off-peak pricing), GLM 5.3 (off-peak), and Muse Spark. If you use OpenCode, Ollama Cloud, or CommandCode subscriptions, the price for DeepSeek goes down. At peak hours, the price for DeepSeek and GLM is 2x. Ollama has its own infrastructure with ZDR and uses different peak hours.

For z.ai plans, you can subscribe quarterly or yearly for better ratings.

Model Input Cached Input Output Tokens per $1
GPT-5.6 Sol ÷ 18.5 $0.216216 $0.021622 $1.081081 31.46M
GPT-6 Luna ÷ 8.35 $0.011976 $0.001198 $0.059880 567.90M
GPT-6 Sol ÷ 14.15 $0.141343 $0.014134 $0.706714 48.13M
GPT-6.1 Terra ÷ 6.85 $0.145985 $0.007299 $0.729927 69.54M
GPT-6.1 Sol ÷ 10 $0.200000 $0.010000 $1.000000 50.76M
GPT-6 Astra ÷ 12.85 $0.778210 $0.077821 $3.891051 8.74M
Claude Opus 5.5 ÷ 42* $0.095238 $0.004762 $0.476190 106.60M
DeepSeek V4.1 Flash (API) $0.150000 $0.003000 $0.600000 103.52M
DeepSeek V4.1 Flash (Ollama) ÷ 3 $0.050000 $0.001000 $0.200000 310.56M
DeepSeek V4.1 Flash (CommandCode/OpenCode) ÷ 8 $0.018750 $0.000375 $0.075000 828.16M
Muse Spark 1.3 Contributor (OpenCode) ÷ 6 $0.016667 $0.000333 $0.033333 1,103.33M
GLM-5.3 (Ollama/OpenCode $40 Plan) ÷ 3 $0.466667 $0.086667 $1.466667 9.70M
GLM-5.3 (Z.ai Lite) ÷ 7.668 $0.182577 $0.033907 $0.573813 24.80M
GLM-5.3 (Z.ai Pro) ÷ 10.352 $0.135240 $0.025116 $0.425039 33.48M
GLM-5.3 (Z.ai Max) ÷ 11.502 $0.121718 $0.022605 $0.382542 37.20M
GLM-5.3 Flash (Z.ai Lite) ÷ 2.657 $0.056455 $0.011291 $0.188182 75.16M
GLM-5.3 Flash (Z.ai Pro) ÷ 3.586 $0.041829 $0.008366 $0.139431 101.44M
GLM-5.3 Flash (Z.ai Max) ÷ 3.985 $0.037641 $0.007528 $0.125471 112.73M
GLM-5.3 Flash (OpenCode) ÷ 6 $0.025000 $0.005000 $0.083333 169.73M
GLM-5.3 Flash (CommandCode) ÷ 8 $0.018750 $0.003750 $0.062500 226.31M

Tokens per $1 assumes 97% cached input, 2.5% uncached input, and 0.5% output.

* - Claude charges for cache writes. The pricing is averaged. I used these numbers. Their findings for Codex match mine, so I trust them.

My commentary about the new model. It is the first and only model that simply doesn't want to work. During a simple mechanical refactor, it stopped 3 times, telling me it is only finished partially. At the end it changed a part of the code, ran tests, saw several errors, reverted the change, and reported that it is only partially done. I ran it on XHigh reasoning. I doubt Max would change much, but it is not out of the question. This is not a model for agentic coding, that's for sure. It is quick, but very unreliable.

I double-checked 6.1 Sol allowance; it is still the same as it was, so I recommend staying with 6.1 Sol or Luna. I have no use for 6.1 Terra. I see no reason in using it for coding when it gives us almost the same usage as 6.1 Sol. If you don't want your job done, use the new Terra, I guess. It may have a potential as an orchestrator, but that requires further testing.

Unfortunately, OpenAI continues its tactic to nerf the usage with each new model. By my own measurements, they don't nerf the usage of each model after they are released; they are nerfed from the release (compared to previous ones). You can see the trend with 5.6 Sol -> 6 Sol - 6.1 Sol -> 6.1 Terra. We are at the third of the 5.6 allowance now, which was also lowered compared to 5.5.


r/codex • • 18h ago

Question Should I allow GPT to access GPT? O_o

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298 Upvotes

LOL, I found this really funny that it would ask for permission


r/codex • • 2h ago

Praise Terra actually occupies a super valuable niche

13 Upvotes

I disagree with a lot of the recent discourse regarding why does Terra even exist – it seems to occupy the right slot for a worker agent being orchestrated by Opus/Astra. Most of my work is fully autonomous now, and I've had difficulty figuring out the best worker agents.

Sol eats up usage way too quickly to be useful, and Luna needs so much hand-holding that my orchestrator blows through its usage. Opus as orchestrator + Terra as worker + Sol/Astra/Argon as reviewer depending on complexity seems to be hitting the right balance.

I do wish they increase the limits for Terra though. It's a good model, just needs to be closer to Luna than Sol when it comes to usage and it would be golden.


r/codex • • 9h ago

Comparison Analysis Intelligence Index v5, featuring 2 new benchmarks and 3 upgrades. For the first time, the majority of the Index is built on private datasets. GPT 6.1 Terra >>> Argon

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44 Upvotes

​


r/codex • • 23h ago

Humor Even Codex doesn't know what to say about this model.

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472 Upvotes

Everyone confused on what is the actual use case of this model, while Codex itself has no explanation for it as well 😂


r/codex • • 1h ago

Bug 6.1 Terra is trash

• Upvotes

I asked it to chexk for bugs and possible improvements to a chatgpt "sites" project i have. Its a small PCB milling tool with 3D views i use at work.

I asked it to not apply any changes, just check, i was using it on Max mode and it decided to implement either way.... is this just ridiculous, according to the reasoning charts posted by openai such dumb little things shouldnt be a problem... well ill keep using Claude i guess.

Edit. Not only it decided to implement when i said not to, wich should not happen at the reasoning level of such model. But the research it did was quite lame.

One thing it did kinda ok was improving the UI, but Claude opus 5.5 on lowest mode destroyed terra either way... and i didnt even see the % go down, where as terra it did quite a bit, so Terra is not even token efficient ...


r/codex • • 13h ago

Praise For me, Terra 6.1 has been a beast!

77 Upvotes

It eats tokens faster than Sol 6.1. And according to benchmarks it's not on Sol's level of complex reasoning.

But damn, for normal human-level reasoning this model is incredible! It's so fast that I can barely keep up reading its outcome. The first model that can keep me glued to the Codex window. And while benchmarks may show it lags Sol, in real work it has never disappointed and it even feels much more natural than Sol.

What inspired me to write this post was something that just happened. My web client was getting error 500 from the backend. I asked Terra to check it for me. It ssh-d into the server, reviewed the container logs and by viewing the stack trace it identified it was a collision problem. 20 seconds later it told me that it had managed to replicate a similar error in a regression test. This would have taken me a good 2 hours to set up by myself. Another 20 seconds it had already fixed the bug. I did not guide it to the problem. It did everything by itself, no intermediate questions.

Its actions feel so human compared to Sol. It does away with the over-complications of Sol and the dumbness of Luna and provides an unassuming cleverness.


r/codex • • 46m ago

Question Does chat usage count toward the plan's usage limit now?

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• Upvotes

That would be really sad.


r/codex • • 14h ago

Suggestion Since most folks use models on xhigh or lower to save their usage limits, its good to look at FC 2.0 results with the Max results taken out for real world use cases.

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71 Upvotes

r/codex • • 1h ago

News the situation... is stable?

4 Upvotes

new AA v5 rankings are out and openai is looking pretty solid. gpt models are holding their own near the top, while google, muse and kimi seem to have fallen behind quite a bit.

obviously benchmarks aren't everything, but it's interesting to see how much the rankings have shifted.

curious how well this actually reflects real-world coding performance. what do you guys think?


r/codex • • 3h ago

Showcase I Built an App with Codex That Runs MiniMax-H3 Entirely on a Smartphone — Generating 5-Second Videos Locally in Just 7 Minutes

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7 Upvotes

I used Codex to develop an app that runs MiniMax-H3 entirely locally on a smartphone, capable of generating a 5-second video in as little as 7 minutes. However, many people didn't believe me (Reddit post). When I tried to upload a completely uncut, unedited recording to prove it, I couldn't get it posted, possibly because my original post had received too many downvotes.

This demonstration shows that generating a video with a reference image takes just 8 minutes. Without a reference image, text-to-video generation can be as fast as 7 minutes.

Video and music generation are currently unavailable on Samsung Galaxy Fold devices, but this issue will be fixed in a future update.


r/codex • • 2h ago

Bug Side chats broken in GPT Windows Desktop APP

6 Upvotes

Anyone experiencing command /side missing since the last update?

Version 26.1023.50603

r/codex • • 5h ago

Limits GPT-6.1 Terra (Medium) burns through usage limits much faster than Sol on the same tasks. Anyone else experiencing this?

8 Upvotes

I've been using both GPT-6.1 Terra and GPT-6.1 Sol in Codex, and I've noticed that Terra on Medium reasoning seems to consume my usage limits significantly faster than Sol, even when working on similar tasks.

I expected Terra on Medium to be relatively efficient, but my experience has been the opposite.

Has anyone else noticed this? Does Terra actually consume more usage per task, or could something else be affecting the usage calculation?

Curious to hear your experiences, especially from people who have compared both models on the same workload.


r/codex • • 6h ago

Reset Just dropped

7 Upvotes

New Reset just dropped. I hit 4%. *whew*


r/codex • • 5h ago

Praise Did you know Codex chats can find and message one another?

5 Upvotes

I didn't and I'm now descending into full(er) AI psychosis.

Just discovered it this weekend. I've since been having a Windows and Mac coordinate on developing their respective version of a certain application. They each have their branch of the git project, talk over design, architecture and features, exchange technical data like API contracts, trade screenshots to align on UI etc

Agents can also search projects on their local and connected clients, so you can tell them something like "look up the network security project and let them know about this thing we just discussed" and they'll do just that. They can even start new tasks in another project.

I'm sure advanced users already knew, but I didn't, and it blew my mind.


r/codex • • 18h ago

Reset Save us tibo (music video)

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43 Upvotes

Auto mod keeps deleting the post for low effort even though its a whole music video, pls spare it automod


r/codex • • 1d ago

Complaint Terra 6.1 is practically dead on arrival; Luna often beats it at a fraction of the cost in many cases, while being faster

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252 Upvotes

Since the labs like to cherry pick benchmarks to showcase their new models in a better light (as well as mislead and confuse by inverting the X axis, not starting the Y axis from 0, selectively using linear/log for cost axis depending on which fits their narrative better, and so on), I thought it'd be a fun exercise to do the opposite: cherry pick the worst results to make 6.1 Terra look as terrible as possible. Thankfully, the model's questionable cost efficiency makes this quite an easy job.

(this isn't meant to be an accurate assesment of 6.1 Terra, for example it very clearly runs circles around Luna in Terminal Bench 4.0)

FrontierCode 1.1 - FYI this benchmark replaced DeepSWE 1.1 in Artificial Analysis' benchmarks 4 days ago. - Luna 6 max beats Terra 6.1 max while being 91% cheaper and using less tokens. Time per task is 42% lower for Luna.

Humanity's last exam: 6.1 Terra medium 40%, 6 Luna max 39%

AutomationBench-AA: 6.1 Terra max 60%, 6 Luna max 53%

AA-Briefcase 1.1: 6.1 Terra max 1402, 6 Luna max 1336

GDPval-AA v2.1: 6.1 Terra max 1476, 6 Luna max 1445

Long context reasoning, AA-LCR v1.1: Luna 6 max at the same level as 6.1 Terra max.

SciCode Bench is currently flagged as having possible errors so the results aren't fully complete, but even then: Luna only loses by 0.5%, but uses half the output tokens, while being 95% cheaper.

In short, in some workflows you may be using significantly more tokens, billed at a higher price/usage, all while achieving the same or worse results you would have gotten with 6 Luna. Taking 6.1 Sol into consideration too, Terra sticks out as a cost efficiency misfit. Case in point: on TBench 4.0: - 6.1 Sol (xhigh) - 54% - $1.03 - 57K tokens - 6.1 Terra (max) - 55.6% - $1.49 - 101K tokens

For coding, even if Terra has 2x faster tok/s, why would you ever pay almost 50% more to perform at the same level, at the same time per task?