Claude vs ChatGPT
The short answer
Neither wins outright, and anybody who tells you one does is selling a subscription. Claude tends to be the better writer and the better follower of a complicated instruction; ChatGPT has the broader feature set around the model and the wider ecosystem. The useful answer is that you do not have to choose: both labs' models run in one Zeplik chat, on one balance, switchable in the middle of a conversation.
Free to start. No credit card required.
Claude vs ChatGPT, side by side
| Claude | ChatGPT | |
|---|---|---|
| Made by | Anthropic | OpenAI |
| Premium tier | Claude Fable 5.1 | GPT-5.5 Pro |
| Newest release | Claude Haiku 5.5 | GPT-6.1 Terra Pro |
| Context window | 1M tokens | 1.1M tokens |
| Output price | 600 credits / 1M tokens | 2160 credits / 1M tokens |
| Released | September 2026 | April 2026 |
| What it is | Anthropic's assistant, built around its own Claude model family. One lab's models, one interface, with projects and artifacts around them. | OpenAI's assistant, built around its own GPT model family, with first-party image generation, voice and a large connector and app ecosystem. |
| On Zeplik | All Anthropic models | All OpenAI models |
Prices and context windows are read from the model registry Zeplik routes and bills against, not typed into this page. Both rows are derived, so a new release changes this table on its own: the premium tier is each lab's highest-priced current model, and the newest release is its most recent. The context window and price shown are the premium tier's. 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin. Figures as of .
Which to pick, and when
These are STRUCTURAL differences -- what each product is and what it is wired into -- not benchmark results. We have not run a head-to-head evaluation and are not going to publish one we did not run.
- You are writing something a person will read closely
- Claude. Its output needs less editing to stop sounding generated, which is the difference that shows up in long prose.
- The instruction has a lot of conditions in it
- Claude. It is noticeably better at honouring the clauses about what NOT to do, which is where most instruction-following fails.
- You want voice, image generation and a big app ecosystem in one place
- ChatGPT. OpenAI's own product has the deepest first-party surface, and most third-party tools integrate with it first.
- You need the newest OpenAI model the day it ships
- ChatGPT. A lab ships in its own product first; everybody else follows.
- You keep switching because the answer is bad
- Neither, on its own. The thing that helps is asking the other lab the same question with the history attached, which is what a multi-model chat is for.
- You are paying for both already
- Consolidate. One Zeplik balance covers 285 models from 53 labs plus image, music and video generation.
Where each one wins
Where Claude is stronger
- Long-form writing and editing, where its output reads least like a machine wrote it
- Following a complicated instruction exactly, including the parts about what not to do
- Working through a long document or codebase without losing the thread
It is one lab. When another lab ships something better next quarter, a Claude subscription does not include it.
Where ChatGPT is stronger
- The broadest first-party feature set: voice, image generation, custom GPTs, a large app ecosystem
- The widest third-party support, because most tools integrate with OpenAI first
- Earliest access to OpenAI's newest models, usually before any other product has them
Also one lab, and the same thing follows: whatever another lab leads on this quarter is not in the subscription.
Use both in one chat
Zeplik routes to 285 models from 53 labs, including Anthropic's and OpenAI's, in a single conversation. The model is chosen per message and the whole history travels with the switch, so you can ask one lab to draft and the other to critique the draft without repeating yourself. The same balance covers image, music and video generation, 465 ready-to-run skills and 900 connected apps. Free to start, no card.
More on Zeplik
- Every modelBrowse every model Zeplik routes to, with live pricing and context windows.
- Model comparisonsOne model against another, built from the same live registry as the table above.
- Assistant comparisonsZeplik against each assistant in turn, including where the other one wins.
- Simple credit pricingOne credit is $0.10 of model usage. Every capability is on every plan.
Frequently asked questions
- Is Claude better than ChatGPT?
- For long-form writing and for following a complicated instruction exactly, most people who use both prefer Claude. For breadth of features around the model -- voice, image generation, custom apps, third-party integrations -- ChatGPT is ahead. There is no single answer, which is why the sensible setup is access to both.
- Can I use Claude and ChatGPT models in the same conversation?
- Yes, on Zeplik. The model is chosen per message and the whole history travels with it, so you can ask Claude to draft, switch to a GPT model to critique the draft, and switch back, without repeating yourself.
- Which is cheaper, Claude or ChatGPT?
- Both labs price several tiers, and the cheap tier of either beats the premium tier of the other. The table above shows the current per-token price of each lab's flagship read live from the registry Zeplik bills against, which is the comparison that stays true.
- Do I need two subscriptions?
- No. One Zeplik plan covers both labs and 51 others, with image, music and video generation on the same credit balance. Credits are $0.10 each, billed per token against the provider's own price.
- Which has the bigger context window?
- It changes with every release, which is exactly why the table above is read from the live registry rather than typed into this page.
Stop choosing
Run the same question on Claude and ChatGPT in one thread, on one balance, and keep the better answer.