By mid-2025, the AI “arms race” is heating up, and xAI and Anthropic have each launched their flagship fashions, Grok 4 and Claude 4. In July 2025, Musk mentioned Grok 4 was “smarter than virtually all graduate college students in all disciplines”. In Might 2025, Anthropic launched Claude 4(two fashions: opus 4 and sonnet 4) and marketed it for enterprise functions with superior coding and reasoning.
Understanding the person mannequin’s capabilities, trade-offs, and use-cases helps everybody, from normal customers to builders, choose the mannequin most suited to the duty, whether or not mundane productiveness or frontier analysis. Thus, this comparability is vital as a result of Grok 4 and Claude 4 are at reverse ends of the design philosophy and deployment platform, but they’re being in contrast in opposition to one another as they compete head-to-head on reasoning and coding benchmarks.
What’s Grok 4?
Grok 4 is the most recent giant language mannequin launched by xAI, accessed through the X (previously Twitter) and out there to make use of through the Grok app/web site. Grok 4 gives continuity with xAI’s expectation of being absolutely built-in into the net in actual time and the mixing of cultural consciousness all through the web. For instance, inside a dialog, Grok 4 can pull dwell information from X (“DeepSearch”) in actual time to maintain solutions present. Grok 4 has included a big context window with a capability of 256k tokens. Additionally been capable of do multimodal enter and output in addition to a brand new voice interface that makes use of quicker, extra pure talking.
Moreover, Musk has mentioned that Grok was constructed for humor/disobedience and has robust cultural fluency, like web slang, memes. A specialised variant known as Grok 4 Code has been additional optimized for coding and supported throughout all IDEs through Copilot and different coding brokers. It could actually write, debug, and clarify code utilizing IDEs far more shortly. All of that is attainable by using xAI’s “Colossus” supercomputer and a rumored ~1.7 trillion-parameter hybrid structure.
Key Options of Grok 4
- Availability: Grok 4 is out there at x.com and thru all of xAI’s Grok functions, like internet, iOS, and Android. It includes 2 variations. One is that the bottom mannequin has a free tier, and there’s a extra highly effective Heavy tier that makes use of “multi-agent” parallelism for more difficult duties.
- Latency & Pace: Grok 4 is targeted on very low latency. At its Heavy mode, it will probably hit about ~250 ms response time, about half the latency of Grok 2. Nevertheless, latency for normal use remains to be being measured in seconds; one evaluation of Grok’s processing estimates output charge at ~75 tokens/s and ~5.7 s to first token.
- Capabilities: Main options embody extra superior logic reasoning and real-time internet looking, code execution, and a pure voice assistant. Grok illustrated talents to resolve superior arithmetic, generate imagery for science, and even write music. In accordance with Tom’s Information, Grok 4 is skilled for “scientist-grade” reasoning and has a specialist coding variant.
- Languages & Tradition: xAI at all times promotes Grok’s linguistic talents. It was skilled on a large quantity of internet information (together with X), leading to a strong understanding of web cultural references. Because of this Grok’s responses give a really ‘on-line’ really feel, with humor. Some customers have additionally famous that Grok will be relatively wordy and casual, as in early suggestions talked about ‘it makes use of too many phrases and is just too cluttered.’
- Pricing & Entry: Grok 4 Customary is $30/month, and Grok 4 Heavy is $300/month. The Heavy tier is designed for enterprise or analysis functions. An API is out there through xAI with REST/SDK interface, 256k token context, tool-calling capabilities, and JSON outputs.

Grok 4 vs Claude 4: Efficiency-based comparability
Job 1: SecurePay UI Prototype
Immediate: “Create an interactive and visually interesting fee gateway webpage utilizing HTML, CSS, and JavaScript.”
Response by Grok 4
Response by Claude 4
Comparative Evaluation
Claude 4 gives a complete consumer interface with polished parts that embody card, PayPal, and Apple Pay options. It additionally helps animations and real-time validation of the consumer interface. The format of the Claude 4 fashions actual functions like Stripe or Razorpay.
Grok 4 can be mobile-first however far more stripped down. It solely helps card enter with some primary validation options. It has a quite simple, clear, and responsive format.
Verdict: Each consumer interfaces have completely different use instances, as Claude 4 is finest for wealthy shows and showcases. Grok 4 is finest for studying and constructing fast, interactive cellular functions.
Job 2: Physics Drawback
Immediate: “Two skinny round discs of mass m and 4m, having radii of a and 2a respectively, are rigidly mounted by a massless, proper rod of size ℓ = √(24 a) by means of their heart. This meeting is laid on a agency and flat floor, and set rolling with out slipping on the floor in order that the angular velocity in regards to the axis of the rod is ω. The angular momentum of your complete meeting in regards to the level ‘O’ is L (see the determine). Which of the next assertion(s) is(are) true?
A. The magnitude of angular momentum of the meeting about its heart of mass is 17 m a² ω / 2
B. The magnitude of the z‑element of L is 55 m a² ω
C. The magnitude of angular momentum of heart of mass of the meeting in regards to the level O is 81 m a² ω
D. The middle of mass of the meeting rotates in regards to the z‑axis with an angular velocity of ω/5”

Response by Grok 4
Grok 4 considers the issue with two discs of colors m and 4m connected by a rod of size √24a. It finds the centre of mass, the angle of tilt for rolling, and makes use of dependable sources, Vedantu and FIITJEE to confirm the query from JEE Superior 2016. Groove deduces the proper solutions to be A and D, utilizing logical deduction and legitimate affirmation from digital sources within the real-world context

Response by Claude 4
Claude 4 makes use of a physics-based evaluation information by means of a stepwise thought course of. It develops the centre of mass, proposes how they might roll, evaluates second of inertia utilizing the parallel axis theorem, gives extra element and clarification, is best for academic functions in a single regard, and theoretically than an answer alone. Claude concludes all choices A-D are right, which is wrong, as Claude overdraws the conclusion after which arrives at accuracy in its response.

Comparative Evaluation
Verdict: If you’re searching for accuracy and effectivity over iteration, Grok is best due to its reasoning and the truth of whether or not it will probably use higher logic than these trying to discuss with solely literature-supported solutions. Claude presents barely higher principle in conceptual readability, however finally fails in remaining accuracy.
Job 3: Essential Connections in a Community
Immediate: “There are n servers numbered from 0 to n – 1 related by undirected server-to-server connections forming a community the place connections[i] = [ai, bi] represents a connection between servers ai and bi. Any server can attain different servers immediately or not directly by means of the community.
A essential connection is a connection that, if eliminated, will make some servers unable to succeed in another server.
Return all essential connections within the community in any order.
Enter: n = 4, connections = [[0,1],[1,2],[2,0],[1,3]]
Output: [[1,3]]
Clarification: [[3,1]] can be accepted.
Instance 2: Enter: n = 2, connections = [[0,1]] Output: [[0,1]]”
Response by Grok 4
#embody <bits/stdc++.h>
utilizing namespace std;
class Resolution {
public:
vector<vector<int>> criticalConnections(int n, vector<vector<int>>& connections) {
vector<vector<int>> adj(n);
for (auto& conn : connections) {
adj[conn[0]].push_back(conn[1]);
adj[conn[1]].push_back(conn[0]);
}
vector<int> disc(n, -1), low(n, -1), mum or dad(n, -1);
vector<vector<int>> bridges;
int time = 0;
operate<void(int)> dfs = [&](int u) {
disc[u] = low[u] = time++;
for (int v : adj[u]) {
if (disc[v] == -1) { // not visited
mum or dad[v] = u;
dfs(v);
low[u] = min(low[u], low[v]);
if (low[v] > disc[u]) {
bridges.push_back({u, v});
}
} else if (v != mum or dad[u]) {
low[u] = min(low[u], disc[v]);
}
}
};
for (int i = 0; i < n; ++i) {
if (disc[i] == -1) {
dfs(i);
}
}
return bridges;
}
};
Response by Claude 4
class Resolution {
public:
vector<vector<int>> criticalConnections(int n, vector<vector<int>>& connections) {
// Construct adjacency checklist
vector<vector<int>> graph(n);
for (auto& conn : connections) {
graph[conn[0]].push_back(conn[1]);
graph[conn[1]].push_back(conn[0]);
}
// Initialize arrays for Tarjan's algorithm
vector<int> discovery(n, -1); // Discovery time
vector<int> low(n, -1); // Low-link worth
vector<int> mum or dad(n, -1); // Mum or dad in DFS tree
vector<vector<int>> bridges; // Retailer bridges
int time = 0; // World time counter
// Run DFS for all unvisited nodes
for (int i = 0; i < n; i++) {
if (discovery[i] == -1) {
dfs(i, graph, discovery, low, mum or dad, bridges, time);
}
}
return bridges;}
personal:
void dfs(int u, vector<vector<int>>& graph, vector<int>& discovery,
vector<int>& low, vector<int>& mum or dad, vector<vector<int>>& bridges, int& time) {
// Mark present node as visited
discovery[u] = low[u] = time++;
// Discover all adjoining vertices
for (int v : graph[u]) {
if (discovery[v] == -1) { // If v will not be visited
mum or dad[v] = u;
dfs(v, graph, discovery, low, mum or dad, bridges, time);
// Replace low-link worth
low[u] = min(low[u], low[v]);
// Verify if edge u-v is a bridge
if (low[v] > discovery[u]) {
bridges.push_back({u, v});
}
}
else if (v != mum or dad[u]) { // Again edge (not mum or dad)
low[u] = min(low[u], discovery[v]);
}}}};
int essential() {
Resolution sol;
int n = 5;
vector<vector<int>> connections = {
{0, 1}, {1, 2}, {2, 0}, {1, 3}, {3, 4}
};
vector<vector<int>> outcome = sol.criticalConnections(n, connections);
cout << "Essential Connections (Bridges):n";
for (auto& conn : outcome) {
cout << conn[0] << " - " << conn[1] << endl;
}
return 0;
}
Comparative Evaluation
Grok 4 and Claude 4 implement the Tarjan trunk-query algorithm in C++, however in several fashions. Claude 4 used a regular object-oriented strategy. It additional separated the DFS logic right into a second helper methodology, which helped with modularization and finally made it a bit simpler to observe. This model is great for educating functions or when debugging or extending options to different graph issues.
Grok 4 used a lambda operate for exploration, inside the primary methodology. That is essentially the most concise and fashionable model. It’s significantly well-suited to aggressive programming or small instruments. It retains the logic scoped and minimizes international unwanted side effects, however it could be a bit tougher to learn, particularly for these new to programming.
Last Verdict: You may depend on Claude 4 when you’re making an attempt to jot down code that can be readable and maintainable. You may, however, depend on Grok 4 when the precedence was doing it quicker and with shorter code.
Total Evaluation
Grok 4 focuses on accuracy, velocity, and performance in all three duties. It’s also extremely proficient in real-world applicability, whether or not by means of efficiently fixing issues. As for Claude 4, its strengths reside in its theoretical depth, closure, and construction, making it higher fitted to academic or maintainable design. That mentioned, Claude can generally over-reach within the evaluation, which might have an effect on the accuracy stage as properly.
Facet | Grok 4 | Claude 4 |
UI Design | Clear, mobile-first, minimal; very best for studying & MVPs | Wealthy, animated, multi-option UI; nice for demos & polish |
Physics Drawback | Correct, logical, source-verified; solutions A & D appropriately | Conceptually robust however incorrect (all A–D marked) |
Graph Algorithm | Concise lambda-based code; finest for quick coding situations | Modular, readable code; higher for training/debugging |
Accuracy | Excessive | Reasonable (resulting from overgeneralization) |
Code Readability | Reasonably environment friendly however dense | Extremely straightforward to learn and prolong |
Actual-World Use | Wonderful (CP, fast instruments, correct solutions) | Good (however slower and susceptible to over-analysis) |
Finest For | Pace, accuracy, compact logic | Schooling, readability, and extensibility |
Grok 4 vs Claude 4: Benchmark Comparability
On this part, we are going to distinction Grok 4 and Claude 4 on some main out there public benchmarks. The desk beneath illustrates their variations and a few vital efficiency metrics. Together with reasoning, coding, latency, and context window measurement. That permits us to gauge which mannequin performs superior in particular duties resembling technical downside fixing, software program growth, and real-time interplay.
Metric/Characteristic | Grok 4 (xAI) | Claude 4 (Sonnet 4 & Opus 4) |
Launch | July 2025 | Might 2025 (Sonnet 4 & Opus 4) |
I/O modalities | Textual content, code, voice, photos | Textual content, code, photos (Imaginative and prescient); no built-in voice |
HLE (Humanity’s Final Examination) | With instruments: 50.7% (new report)No instruments: 26.9% | No instruments: ∼15–22% (typical vary for GPT-4, Gemini, Claude Opus as reported)With instruments: (not reported) |
MMLU | 86.6% | Sonnet: 83.7%; Opus: 86.0% |
SWE-Bench (coding) | 72–75% (cross@1) | Sonnet: 72.7%; Opus: 72.5% |
Different Educational | AIME (math): 100%; GPQA (physics): 87% | Comparable benchmarks not printed publicly; Claude 4 focuses on coding/agent duties |
Latency & Pace | 75.3 tok/s; ~5.7 s to first token | Sonnet: 85.3 tok/s, 1.68 s TTFT;Opus: 64.9 tok/s, 2.58 s TTFT |
Pricing | $30/mo (Customary); $300/mo (Heavy) | Sonnet: $3/$15 per 1M tokens (enter/output) (free tier out there for Sonnet 4); Opus: $15/$75 per 1M |
API & platforms | xAI API accessible through X.com/Grok apps | Anthropic API; additionally on AWS Bedrock and Google Vertex AI |
Conclusion
When evaluating Grok 4 to Claude 4, I see two fashions that have been constructed for various values. Grok 4 is quick, exact, and aligned with real-world use instances. Thus, nice for technical programming, speedy prototyping, and problem-solving that worth correctness and velocity. It at all times gives clear, concise, and extremely efficient responses in areas resembling UI design, engineering issues, and creating algorithms based mostly on useful programming.
In distinction, Claude 4 gives energy in readability, construction, and depth. Its education-focused and designed-for-readability coding model makes it extra appropriate for maintainable tasks. To assist impart conceptual understanding, and for educating and debugging functions. Nonetheless, I see that Claude could generally go too far within the evaluation, affecting the standard of the response to the query.
Subsequently, in case your precedence is uncooked efficiency and real-world utility, then Grok 4 is the higher selection. In case your precedence is clear structure, conceptual readability, and/or educating and studying, then Claude 4 is your finest guess.
Regularly Requested Questions
A. Grok 4 has the higher remaining solutions throughout duties carried out, particularly in technical decision or real-world physics issues.
A. Claude 4 gives a lot richer, polished UI output with animation and a number of strategies. Grok 4 is best for mobile-first and fast prototypes.
A. Builders, researchers, or college students with an curiosity or want for velocity, brevity, and correctness in duties resembling aggressive programming, math, or fast utility instruments.
A. Each fashions carry out equally on SWE-Bench (~72-75%), and Grok 4 pulled forward (marginally) on sure reasoning benchmarks, and consistency throughout process completion, besides drawing bins.
A. Sure, Grok 4 is out there through xAI’s API and Grok apps. Claude 4 is out there by means of Anthropic’s API.
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