GPT-5.6 Terra vs Grok 4.5 — which is better in 2026?

Comparing these models based on one impressive answer makes little sense. We look at the current QueryWise ranking, separate coding and reasoning scores, speed from our telemetry, context-window size, and the approximate cost of a request in tenge. The figures are updated every hour, so this page uses live metrics.

GPT-5.6 Terra is currently ahead on the overall score: GPT-5.6 Terra. In the QueryWise ranking, the leader is in position Claude Fable 5 with a score of 9.8. That does not mean the same model will win in every scenario. The best option may differ for a programmer, a student, and someone who simply wants to get a quick answer.

Answer quality: the gap is small, so details matter

GPT-5.6 Terra currently has a score of 9.2 and ranks 5. Its coding score is 9.9, while its reasoning metric is currently shown as —. The model is especially convincing when it has to keep track of many conditions: breaking down a technical specification, comparing several documents, or bringing a large piece of code into a consistent structure.

Grok 4.5 has a score of 9.2 and ranks 6. Its coding score is 9.4, and its reasoning score is 9.2. In this pair, Grok may be more practical for short iterations: ask a question, get an answer, clarify a detail, and move quickly to the next task.

Focus on the difference in the metric that matters to you, not just the overall score. If coding is important, compare 9.9 with 9.4. If you need argument analysis, check — against 9.2. GPT-5.6 Terra is ahead on the current overall score, but the result for a specific task depends on its type.

Speed and price in tenge

For Grok 4.5, the median response time in our telemetry is 16 seconds, with 100% reliability. We still do not have enough data on GPT-5.6 Terra’s median speed and reliability: — and —. We will not turn missing measurements into a made-up advantage.

An average question to GPT-5.6 Terra in QueryWise costs approximately 13 ₸. For Grok 4.5, it is about 10 ₸. The difference is small for a single request, but it adds up with daily use. If you ask dozens of short questions for study or work, Grok 4.5 currently looks more cost-effective. For occasional complex requests, the quality of the specific result matters more than saving a few tenge.

Our team added GPT-5.6 Terra to QueryWise on release day to test it in real work scenarios rather than only with demonstration prompts. In Kazakhstan, both models are available with payment in tenge and interfaces in Russian and Kazakh. New users get three free questions to start.

Context and task types

GPT-5.6 Terra has a context window of 1.1M, while Grok 4.5 has 500K. In practice, that can mean the difference between “paste the document in sections” and uploading a large set of materials in one request. Terra is the more sensible choice for a long contract, extensive technical documentation, or an analysis of several report chapters. It is an assistant, not legal advice: a specialist should still review any disputed clauses.

With a 500K context window, Grok 4.5 is well suited to quick explanations, drafts, idea checks, and step-by-step conversations. For example, you can ask it to create an exam-preparation plan, shorten it to fit one week, and then explain a difficult topic separately. Both models are strong at coding: Terra may have the edge on a large project with many files, while Grok is better for a small script that needs a quick fix and test.

There are everyday Kazakhstan-specific use cases too: comparing delivery terms between cities, rewriting a business email in a neutral tone, or explaining a formula to a school student. Here, fact-checking matters more than the brand. Models can make mistakes, so medical, legal, and financial answers should not be treated as professional advice.

An honest verdict

GPT-5.6 Terra is ahead on the current overall score with a result of GPT-5.6 Terra. For long materials, complex code, and tasks that require keeping a large amount of context in mind, my choice is GPT-5.6 Terra—if its advantage holds in your own test. For quick questions, ongoing dialogue, and saving money across a high volume of requests, choose Grok 4.5.

In QueryWise, you can run both models on the same screen and see where they agree and where they start to disagree. That is more useful than a marketing promise: sometimes Grok’s short answer is more accurate, while other times Terra succeeds because of its longer context. The current ranking winner is GPT-5.6 Terra, but for coding, use 9.9 and 9.4 as your guide; for reasoning, look at — and 9.2.