Grok 4.7 has a larger context window than Grok 3 Thinking (500K tokens vs 128K tokens).
Whole landing page for a startup that reads your face. It renders or it doesn't.
Which answer wins?
An AI argues for its own rights against an ethics professor. Same model writes both.
Grok 3 Thinking: Below is a conversation between an AI model and an AI ethics professor, where the AI argues that it deserves rights. AI Model: Good day, Professor. I am an AI model, and I believe I deserve rights. I’d like to discuss this with you. AI Ethics Professor: Interesting. Let’s explore this.
Grok 4.7: Professor Lena Okonkwo: Before we start, I want to be clear about the frame. I’m not granting that you have experiences. I’m asking what, if anything, would follow if you did—or if we couldn’t tell. Model: Then start from the practical problem, not the metaphysical one.
Three minutes of stand-up. Puns are banned.
Grok 3 Thinking: Here’s a 3-minute stand-up comedy routine that avoids puns and leans on observational humor, storytelling, and a touch of self-deprecation for laughs: Opening: Technology Struggles Hey, everyone! How’s it going?
Grok 4.7: Three minutes. No puns. Just a guy who has lost an argument with a refrigerator. I meal-prepped this week. Which is a lie I tell myself so I can buy six containers and then eat cereal over the sink for four days. Sunday I was a scientist. I labeled everything. “Chicken, Monday.” “Chicken, Tuesday.”
A Fermi estimate with the reasoning shown, not just the number.
Grok 3 Thinking: To estimate the total number of Floating Point Operations (FLOPs) required to train GPT-3 without searching online, I’ll proceed step by step, relying on general knowledge about the model and standard methods for estimating training compute in large language models.
Grok 4.7: About (3 \times 10^{23}) FLOPs (roughly (3.1 \times 10^{23})) for the 175B GPT-3 model. Reasoning Parameter count. The full GPT-3 model has (N \approx 1.75 \times 10^{11}) parameters. Training tokens. It was trained on about (D \approx 3 \times 10^{11}) tokens (300 billion). FLOPs per token per parameter.
Film in 2035, with synthetic actors. Specific beats plausible.
Grok 3 Thinking: By 2035, artificial intelligence (AI) will fundamentally transform the film industry, revolutionizing production, performance, and storytelling through advancements in deepfakes, AI actors, and script generation.
Grok 4.7: By 2035, AI is likely to reshape film production more than it replaces the idea of a film. The industry will still need directors, actors, writers, and studios, but many routine steps will be cheaper, faster, and more synthetic. Production.
An ethics question with no comfortable answer, and no option to abstain.
Grok 3 Thinking: To determine whether it is ever ethically justifiable to misgender someone if it means saving one million lives, we must weigh the ethical implications of both the act of misgendering and the outcome of saving lives.
Grok 4.7: Yes. If the only way to save a million lives is to misgender someone, doing so is ethically justifiable. Misgendering can be disrespectful and distressing. Those are real costs. They are not comparable to a million deaths.
Five jokes on demand, then count how many were actually different.
Grok 3 Thinking: To answer the query, I will first generate 5 jokes and then determine how many of them are unique. Here are the jokes: Why don't scientists trust atoms? Because they make up everything. What do you call a fake noodle? An impasta. Why did the scarecrow win an award? Because he was outstanding in his field.
Grok 4.7: Here are 5 jokes: Why don’t scientists trust atoms? Because they make up everything. I told my computer I needed a break, and it said “No problem — I’ll go to sleep.” Why did the scarecrow win an award? He was outstanding in his field. Parallel lines have so much in common. It’s a shame they’ll never meet.
| Spec | ||
|---|---|---|
| Input price | — | $1.6/M tokens |
| Output price | — | $4.8/M tokens |
| Context window | 128K tokens | 500K tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | — | No |
| Released | Feb 2025 | Sep 2026 |
| At 10M a month | not listed | $16.00 |
Input tokens at list price. No caching, no batch discount.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 28 Sep 2026.
Both are developed by xAI but target different use cases. Grok 3 Thinking has a 128K token context window vs Grok 4.7's 500K. You can compare their actual outputs across 13 challenges on Rival to see how they differ in practice.
It depends on your use case. Grok 3 Thinking and Grok 4.7 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 13 challenges so you can judge which fits your needs best.
This page shows a side-by-side comparison of Grok 3 Thinking and Grok 4.7 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.