Claude Opus 5 or GPT-5.6 Sol — Which Model Is Stronger?

Quality: Claude Opus 5 Leads on Overall Performance

In the QueryWise rankings, Claude Opus 5 scores 9.5 out of 10 and ranks 3. GPT-5.6 Sol scores 9.7 out of 10 and sits at 2. Based on the current score, GPT-5.6 Sol is ahead with 9.7.

This is not a blowout. GPT-5.6 Sol is close to the leader, but Claude Opus 5 holds its quality better on long and ambiguous prompts. When a task requires unpacking conditions, finding contradictions in the requirements, and producing a coherent plan, Opus 5 comes across as more confident.

Kimi K3 and Grok 4.5 also sit near the top of the QueryWise rankings. They are useful in specific scenarios, but their overall scores trail both models in this comparison.

Coding and Reasoning

Claude Opus 5 has a coding score of 9.5, compared with 9.9 for GPT-5.6 Sol. GPT-5.6 Sol leads on this measure. The gap becomes especially visible when a task goes beyond “write a function”: the model must understand an unfamiliar repository, suggest changes across several files, and explain why the tests are failing.

GPT-5.6 Sol remains a strong practical option. Given a prompt such as “fix the race condition in this Python snippet and add a test that reproduces the bug,” it will usually produce a patch and test scenario quickly. Claude Opus 5 more often checks the boundaries of the solution carefully and points out in advance where the patch might break.

The current data does not publish a reasoning score for Claude Opus 5. For GPT-5.6 Sol, it is 9.5. So it would not be fair to declare a winner here based on a single number: there is a coding comparison, but Opus 5 lacks a sufficient reasoning score.

Speed and Price in Tenge

GPT-5.6 Sol responds with a median speed of 8 seconds. There is not yet enough telemetry for Claude Opus 5 to provide a reliable median. In chat, the difference is straightforward: Sol is more convenient when you need several short text options, a formula, or a quick fix in already-understood code.

An average question in QueryWise costs approximately 22 ₸ for Claude Opus 5 and 13 ₸ for GPT-5.6 Sol. With dozens of requests per day, that difference adds up. For regular work with drafts, quick explanations, and small scripts, my choice here is GPT-5.6 Sol.

Claude Opus 5 costs more, but the price is justified when a mistake would cost more than a few tenge—for example, when analyzing a large specification or designing a service architecture. It is a good choice for one complex request instead of a series of trial-and-error attempts.

Long Context and Task Types

Claude Opus 5 has a context of 1M, while GPT-5.6 Sol has 1.1M. Both are designed for long documents, extensive conversations, and large source-code collections. Sol’s window is slightly wider, but size alone does not guarantee a better answer.

Claude Opus 5 is the smarter choice when you need to review a 200-page contract in one evening, identify contradictions between sections, and prepare a list of questions for a lawyer. This is not legal advice, but a convenient preliminary analysis; a qualified professional should verify the final conclusions.

GPT-5.6 Sol is more practical in a different situation: you have a sales table, several conditions, and need a quick explanation of why the monthly metric declined. It responds faster and costs less, making it suitable for a series of follow-up questions. Claude Opus 5 is preferable when the analysis must lead to a consistent action strategy that accounts for many constraints.

We ran both models through real-world questions. For the prompt “compare two database migration options, taking service downtime, rollback, and compatibility with legacy clients into account,” Claude Opus 5 produced a more complete plan with rollback conditions. GPT-5.6 Sol gave a strong, shorter answer, but some risks had to be clarified through additional questions.

Which Model Should You Choose in QueryWise?

For complex coding and multi-step analysis, the winner is GPT-5.6 Sol if its current score remains higher. In the case of Claude Opus 5, this is the choice for architecture, long documents, and tasks where careful handling of every constraint matters.

For speed, price, and everyday work requests, GPT-5.6 Sol wins: it costs about 13 ₸ per average question, with a median response time of 8 seconds. When the overall results are close, there is no reason to overpay for Opus 5 on a simple request.

Both models are available from Kazakhstan in QueryWise: payments are made in tenge, the interface is available in Russian and Kazakh, and new users receive 3 free questions. You can send the same prompt to both models at once and see where they agree and where they differ. That is more useful than marketing promises—the difference appears directly on your own task.

The candid verdict: choose GPT-5.6 Sol for the highest quality according to the current QueryWise ranking, and GPT-5.6 Sol when low cost and fast responses matter. For medical, legal, and financial decisions, either model remains an assistant, not a replacement for a qualified professional.