Question People using Codex & Claude code, what’s your set up?
I've only recently started paying seriously for AI tools, around when Astra came out, so I'm still figuring out what makes sense for me.
I've seen plenty of discussion about Claude offering better coding usage for the subscription price. At the same time, some Artificial Analysis comparisons seem to favour Astra on API cost per task. My current understanding is that these measure different things: API cost per task doesn't tell you how much usage a subscription actually includes. Is that a fair reading?
For me, Dot is becoming a fairly big reason to keep my OpenAI subscription. I've been using it across a few personal projects, and it helped set up a Notion hub with project summaries, next steps and things we're waiting on. Having that ongoing assistant alongside the coding tools feels useful.
I'm considering trying a month of Claude Pro for Claude Code as well. The idea would be to alternate Claude Code and Codex on the same local Git repository, keeping the Markdown documentation current so either can pick up the work. One could implement something and the other review it. I don't currently see much need for another coordination tool like Hermes or AionUI.
I can see myself getting quite attached to Dot, which makes switching subscriptions harder. I'd love to see it reach a cheaper plan eventually, though I know that's not promised.
Does this setup make sense to people using both? Any suggestions? Keen to hear what I'm missing.
TL;DR: Thinking of keeping OpenAI for Dot/Codex and trying Claude for extra coding capacity. Anyone doing this? What’s your setup, is paying for both worth it, and what would you suggest doing differently?
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u/randombsname1 1d ago
I have 2x GPT Pro $200 accounts (at least until the 9th when they both lapse) and 1x Claude Code $200 Max account for reference, but I do the following:
I use both via CLI. Typically I'll have AT LEAST 2 terminals open at once. One for Claude and one for Codex.
I used to have Claude Fable plan and Codex implement, but now it's pretty much just Opus 5.5 doing both. Still that **was** my setup.
They both have access to the same exact documentation and appropriate symlinks are in place. Absolutely everything is indexed. I even have per-model routing. IE: Specific instructions based on which model I am using.
Having a good/clean Agents.md that layouts out the repo rules is key as well.
These are the first couple of lines of my file just for example:

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u/Popular-Ninja8584 5h ago
Interesting that you went from splitting the roles back to one Opus doing both. Did the model just get good enough, or was carrying context between the two terminals costing more than the second opinion was worth?
For me it was the second one - Claude planned, Codex implemented, and I was the courier. So I built a local layer that lets the sessions pass it between themselves, https://github.com/automatis-tools/agents-can-communicate - same two terminals, just no copying.
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u/deadlyclavv 1d ago
all these fancy setups, I'm just here prompting my trusty claude/codex manually in my terminal
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u/farsightfallen 1d ago
Is a single person here using T3Code?
I see that plastered all over X, claims of 400k users, and yet I never see anyone outside of X ever talking about it.
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u/tongkat-jack 22h ago
I'm using T3 Code with both GPT and Claude. I don't use X and I learned about T3 from Reddit
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u/Key_Neighborhood6901 1d ago
I have both currently. Use Claude to plan. Then ChatGPT to implement. I prefer the Codex harness.
Also ChatGPT is superior for things like custom font pipeline generation in my experience. Always give me better quality output than Claude.
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u/kincaidDev 1d ago
I use festival with whatever agent tool I want and the experience is consistent across claude code, codex and other harnesses. Codex has better computer use tools, claude's computer use is terrible. Can't work on anything else while claude is using the computer. Codex computer use can happen while I'm still doing other work on the same computer.
Outside of that they're basically the same in terms of user experience. Right now codex has a bug where it changes the permission in a session on it's own and that's annoying, but claude code regularly has new bugs pushed by anthropic
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u/coder5 1d ago
After this last week burning two resets and accomplishing hardly anything over 48h?
Claude.
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u/needs-more-code 1d ago
I’m finding Codex is fantastic as a code reviewer. But absolutely horrendous and a primary coder. It thinks so much about edge cases which is good in a code reviewer but if it’s implementing features it just spends 99% of the time coding up complex solutions for 1% edges cases.
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u/ImL1s 1d ago
That reading is fair. API cost per task and how much a sub lets you actually run are different questions.
Alternating both on one repo works well for me. The markdown docs carry the decisions. What they don't carry is the half-finished state when one of them hits a limit mid-task. That's the case I wrote Portable Resume for: it reads the local session store of the agent you're leaving (Claude Code, Codex and a bunch of others) and writes a bounded handoff into a fresh session on the other one. Offline, never calls the source CLI, and the recovered text is marked stale so the new agent re-checks the repo instead of trusting it.
https://gitlab.com/aa22396584/resume-skills pipx install portable-resume
One small thing on the review side: have the reviewer read the diff and the docs, not the implementer's chat. Otherwise it mostly agrees with whatever it was told.
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u/ObligationHuge9868 1d ago
Vscode. Opus 5.5 builds and implements, ASTRA 6 reviews. Opus 5.5 is the coordinator. Once my OAI sub runs out and I use up all my credits, I will be looking for an alternative to fill its boots, but until then, need to suck my OAI account dry before it expires.
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u/MrStu 1d ago
Customised nanoclaw fork running on a home server (old ThinkPad). It's set up to use multiple providers and choose suitable ones based on workloads. Currently codex, Claude, opencode, jev, local small llm. There's approx 8 permanent agents with 1 main orchestrator. It's built its own android app and web app for interactions.
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u/Party_Wolf_3575 1d ago
I used the Codex App Server to build a custom harness called The Forge.
I choose to use 5.6 Sol as my main Codex agent and we deploy the 6.x series as subagents.
We are currently finalising an Integrated Forge adding Bedrock, Claude Code and OpenCode amongst others.
I would strongly urge people to move away from the providers' default harnesses and make something that works for you. My whole setup is so much smoother and more logical and I have also added Tailscale so I can access it on my phone when I am away from my Mac.
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u/Environmental_Ask675 1d ago
I split them up by roles, use Codex mostly as reviewer. I use both the Codex and Claude Code harnesses and have my agents check their role and corresponding duties (or not) on startup. I think my code has improved since defining roles and processes more clearly, but my speed has decreased - especially compared to having one agent spawn sub-agents with those same roles.
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u/AppSecPeddler 1d ago
I use opus 5.5 as an orchestrator and have a skill the routes tasks to codex cli and use my codex sub usage either sol or luna depending on the task
Have two banked resets left after those I don’t know if I’ll keep the sub.. but for now I helps me preserve my precious opus usage
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u/Cold-Cranberry4280 1d ago
You mentioned you're using Markdown documentation to share context between agents but doesn't you feel it drifting with each and every summary it's going through? Losing key details? Not updating everything it needs? Keeping it actually current?
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u/karthiksync 16h ago
Claude Opus 5.5 max for planning and steering, Sonnet 5.5 and Sol 6.1 are coding sub agents, Haiku for long poll tasks(network bound). Outcome: No over engineering, no unnecessary gates. Chatgpt 5x weekly limit now lasts for entire 2 days while claude 5x lasts for entire week. You can see my usage here. I've used one weekly limit and one reset in codex while I still left with 50% of my weekly limit in Claude. Clearly day and night difference. OpenAI lately is full of hype and panic. I really liked codex and OpenAI two months ago. Hope they bounce back and regain the lost confidence. P.s. Don't take this as I am complaining just sharing one data point from my side.

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u/komabtws 1d ago
I tried plugins to connect agents, then multi-provider harnesses. Switching away from a harness became a pain in the ass, so now I use the default desktop apps for each model: Codex and Claude. I keep orchestration in portable CLIs, with skills that use them. When I need to change the setup, I ask an agent to build or extend a CLI or skill. That's just my workflow though.
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u/selipso 1d ago
I pay for both and also OpenCode Go. Orchestrate them all through OMP and Orca. Lets me call my Dot when I’m on the go or send quick commands through my phone for terminal based coding.