Grok 4.3 vs Claude Opus 5.5: which is better?

Response quality: this is where the match is decided

In the QueryWise ranking, Grok 4.3 is in 29 place with a score of 5.5 out of 10. Claude Opus 5.5 ranks 1 with 9.9 out of 10. Claude Opus 5.5 is currently ahead by score, and this is one of those cases where the final number clearly reflects the difference in everyday work.

Grok 4.3 is not a weak model. It has a reasoning score of 9.2 and a coding score of 6.1. That profile is useful when you need to unpack a condition, spot a conflict in the requirements, or quickly draft a working solution. Still, Grok 4.3 falls noticeably short of the QueryWise leader overall.

QueryWise does not currently list separate public coding and reasoning scores for Claude Opus 5.5 in its model card. That gives us no fair basis for assigning specific scores in those two areas. For the comparison, we use the overall ranking, where Claude Opus 5.5 is comfortably ahead.

We tested both models with real-world questions. For example: «Review a supply contract for hidden penalties, create a risk table, and identify which clauses should be clarified with the counterparty». Claude usually does a better job of preserving the structure of a long request and separating findings from assumptions. Grok provides a useful analysis, but with a complex prompt it may move to recommendations before checking every condition. Any legal response should still be reviewed by a professional.

Price and speed for users in Kazakhstan

In QueryWise, one average question costs about 10 ₸ with Grok 4.3 and 18 ₸ with Claude Opus 5.5. Claude is more expensive. The difference can be worthwhile when the request involves a long document, a codebase, or a task where a mistake would cost more than a few tenge.

For a short question about an Excel formula, a translation, or the structure of an email, paying extra for Claude is not always justified. Grok 4.3 looks more practical here: it costs less, and a simple task does not require the leading model. The savings can also matter for regular coding if you send dozens of small requests each day.

The median response speed of both models has not yet been collected in QueryWise telemetry. So we will not invent timings or declare one of them faster. In the QueryWise interface, both are available with payment in tenge, Russian and Kazakh interfaces, and three free questions at signup.

Context and task types

The two models have context windows of 1M and 1M. For users, this means the size of a long document will not automatically be a limitation: you can upload a large contract, repository, or set of internal instructions. But fitting the text into the context does not mean processing it equally well.

Grok 4.3 is a sensible choice in three situations. You need a quick explanation of a Python error and a proposed fix. You want to break a controversial idea into arguments for and against. Or you need an affordable first draft of an email, database query, or research plan. In these scenarios, 6.1 for coding and 9.2 for reasoning give a clear picture of the model’s strengths.

Claude Opus 5.5 is preferable when a task consists of several connected stages. For example, you may need to review a 200-page contract in one evening, find conflicting clauses, prepare questions for a lawyer, and then verify the conclusions against the source text. Another strong use case is refactoring a large project while accounting for conventions across multiple files, tests, and product constraints.

There is also a practical way to reduce the risk of errors. In QueryWise, both models answer the same prompt side by side, so you can see where they agree and where they diverge. For a disputed decision, this is more useful than blindly choosing one brand: a disagreement is a signal to check the source data.

An honest verdict

If you want the best overall result, choose Claude Opus 5.5. The current QueryWise ranking puts the leader higher, and the gap is large enough to matter for demanding tasks. This is especially true for long documents, multi-step analysis, and code that needs to pass review rather than merely look polished.

Grok 4.3 is the choice for saving money and producing quick working drafts. It costs about 10 ₸ per average question, compared with 18 ₸ for Claude Opus 5.5. For simple requests, initial analysis, and affordable everyday use, that may be enough.

The straightforward conclusion: Claude Opus 5.5 currently wins on quality, while Grok 4.3 wins on price. For studying, when you need to work through a topic and check your reasoning, it makes sense to start with Grok and send a difficult or confusing question to Claude. For programming, the answer depends on the cost of an error, but the overall ranking again favors Claude Opus 5.5. No model replaces a doctor, lawyer, or financial adviser.