Grok 4.3
Schnelle Antworten von xAI
Best for: everyday questions, short texts, quick answers · fast
- No login required
- Understands images
approx. 556 tokens per response
xAI · 2 models
Grok
Grok by xAI right in your browser: Grok 4.3 without login, Grok 4.7 with thinking mode with a free account, no X account and no subscription.
Genuine xAI models through the official API, no account with the provider. As a guest you get 15,000 tokens with Grok 4.3. A free account adds 15,000 tokens a day, all models, uploads and saved chats.
What is Grok?
Grok is the AI chatbot from xAI, the AI company Elon Musk founded in 2023, which has been part of SpaceX since February 2026; Grok was introduced in November 2023. Grok stands out for its direct, often humorous tone and, at the provider, is closely tied to the X platform, while the current models work step by step in thinking mode. On ChatX you use Grok 4.3 and Grok 4.7 through xAI's official API, with no X account and no account at the provider.
The Grok models on ChatX
Choose the model that fits your task. Fast models are enough for everyday questions, while the larger models pay off for long texts, analyses, and code.
Grok 4.7
Grok mit Denkmodus für schwierige Fragen
Best for: logic, code and analysis in thinking mode · thorough
- With account
- Understands images
- Thinking mode
approx. 1,200 tokens per response
New at Grok
Blog →
Grok on X or on ChatX?
On X (formerly Twitter), Grok is built into the platform: without a subscription you only get a small allowance, and the full features depend on the paid tiers Premium, Premium+ and SuperGrok. In return, Grok can access current posts on X directly there, which made the chatbot known for trending topics.
On ChatX you use the same Grok models from xAI through the official API, with no X account and no X subscription. As a guest you start with Grok 4.3, and a free account adds Grok 4.7 with thinking mode and image upload. Access to X posts isn't available here; for current topics, turn on web search for models with the globe icon. You create images on ChatX in the AI image generator with other models.
The typical Grok tone stays: direct, often tongue-in-cheek, less cautious than other models. For serious texts, one sentence in your prompt switches that off (“factual, no jokes”). And because Grok sits next to ChatGPT, Claude, Gemini and DeepSeek here, one click shows you whether another model handles the question better.
Grok compared with the other models on ChatX
Pick Grok when you want a direct, no-nonsense answer with a dash of humor: Grok 4.3 is very fast and cheap for everyday questions, and Grok 4.7 in thinking mode also handles logic, math and code. ChatGPT, as the all-rounder, often comes across as more balanced and has more extra features, Claude writes long texts more carefully, Gemini is strong with very long documents and DeepSeek is cheaper still, while Grok can sound flippant on serious topics and tends toward long answers. On ChatX you don't have to commit: switch models in the middle of the same chat and compare the answers side by side.
| Model | Strength | No sign-up | Features |
|---|---|---|---|
| ChatGPT | All-rounder for writing, analysis and code | GPT-6 Luna | Web search · Understands images · Thinking mode |
| Claude | Long texts, careful language, code | Claude Haiku 5.5 | Web search · Understands images · Thinking mode |
| Gemini | Fast, large context, understands images | Gemini 3.5 Flash Lite | Web search · Understands images · Thinking mode |
| Grok | Direct tone, quick answers | Grok 4.3 | Understands images · Thinking mode |
| DeepSeek | Math, logic and code at a low price | DeepSeek V4.1 Flash | Web search · Understands images · Thinking mode |
All models run in the same chat. Switch any time without losing your history.
What you can do with Grok on ChatX
Texts with personality
Grok writes posts, slogans and short texts with wit and an edge, if that's what you want.
Make complex things simple
Get difficult topics explained in plain words, with comparisons from everyday life.
Code
Have code explained, bugs found and small functions written, including tricky cases in thinking mode.
Logic and math
Puzzles, calculations and estimates where Grok 4.7 thinks before it answers.
Translate
Carry texts over between English, Spanish, German and other languages while getting the tone right.
Emails and replies
Quickly get the right reply to a message, from customer service to your neighbors.
Privacy: what happens to my input?
Your input goes from ChatX straight to the official API of xAI, the company behind Grok, and the answer comes back the same way. You don't need an X account, and ChatX doesn't link your chats to X: here Grok has no access to X posts or your X profile, and your input doesn't end up in your X feed. According to the security FAQ for the xAI API (as of November 2026), inputs and answers are not used for training without explicit permission and are automatically deleted after 30 days; xAI does not offer processing within the EU.
ChatX stores your chats only in your own account, and you can delete them at any time. As a guest, you chat without an account. Still, don't enter passwords, health data or other sensitive information, because the content is sent to the provider to generate the answer.
About the provider itself: xAI used public X posts to train Grok, which led to a suspension in the EU in 2024 and a GDPR investigation by the Irish Data Protection Commission in 2025. In early 2026, the European Commission and UK and Irish authorities also opened proceedings over sexualized images of real people spread on X through Grok's image features. Both concern the services on X; on ChatX, the Grok models don't create images and no X data is involved.
Grok by xAI, explained simply
Grok is developed by xAI. The models are suited to everyday questions, logic tasks and programming, and with an account they handle images as well as text. Using it directly with xAI requires an account; on ChatX you use Grok through the official API without an X account, with an English interface and billing per reply instead of a monthly subscription. Grok 4.3 runs without signing up and is enough for most questions; Grok 4.7 with thinking mode takes more time for difficult tasks and needs a free ChatX account. Grok understands English and replies in the language you write in.
It's this easy
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1
Enter your question
Type your question or task into the input field. You don't need to log in for this.
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2
Choose a model
Start with the default model or switch to a more powerful one anytime.
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3
Keep going
With a free account, you save your chats, upload files, and get free tokens every day.
Costs and free allowance
- Without signing up, you get 15,000 tokens to try it out. That's enough for around 26 answers with Grok 4.3.
- With a free account, you get 15,000 tokens as a gift every day.
- If you need more, you can buy tokens with no subscription or choose a monthly plan. Billing is based on the model's actual usage.
Frequently asked questions
Do I need an X account for Grok?
No. On ChatX you use Grok without an X account, without an account at the provider and without a subscription. Grok 4.3 even runs without signing up, and for Grok 4.7 a free ChatX account is all you need.
What does “grok” mean?
The word comes from Robert A. Heinlein's 1961 science fiction novel “Stranger in a Strange Land”, where it means to understand something so completely that you become one with it. xAI chose the term as the name for its chatbot.
Is Grok free?
At the provider, Grok is free with limits on X and available in tiered subscriptions with more power. On ChatX you start without signing up with a starting allowance and then pay the model's actual usage per answer, with no mandatory subscription.
Which Grok model should I choose?
Grok 4.3 is enough for most questions, answers quickly and runs without signing up. For difficult tasks, choose Grok 4.7 with thinking mode, available with a free account.
What does thinking mode do for Grok?
In thinking mode, Grok 4.7 works through the problem step by step before answering. That helps with logic, math and code, takes longer and costs more tokens, because the thinking phase counts as output. Grok 4.3 has no thinking mode.
Can Grok understand or create images?
With a free account, Grok 4.7 on ChatX understands uploaded photos and screenshots. You create images on ChatX with the AI image generator and other models, even without signing up.
Does Grok know the latest news from X here?
No. On ChatX, Grok runs through the xAI API with no connection to X and no real-time data from the platform. For up-to-the-minute information, choose a model with web search on ChatX, marked by the globe icon.
Does Grok speak English and other languages?
Yes. Grok understands and writes English and many other languages, and it answers in the language you ask in. The ChatX interface is available in English too.
The history of Grok
From the founding of xAI in 2023 and the first Grok, available only on X, to the agent models Grok 4.6 and Grok 4.7 under the SpaceX umbrella in 2026.
Newest events first
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Grok 4.5 to 4.7 and agents · 2026
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Produkt
The X Subscription bundles Grok, Cursor and X Premium
On October 12, 2026, the provider combines Grok, Grok Bot, the code editor Cursor and X Premium into a single subscription model that ranges from a free tier to a pricey Ultra plan. Existing SuperGrok, Cursor and X Premium customers can keep their old plans. Grok is no longer sold as a standalone chatbot but as part of a platform.
5 tiersGrok + Cursor + XOld plans stay
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Modell
Grok 4.7 becomes the new flagship
Grok 4.7 arrives on September 21, 2026, with a larger base model than Grok 4.6, longer training on multi-hour tasks and a 500,000-token context. The provider positions it for coding and knowledge work and cites top scores on coding benchmarks, though these remain the maker's own claims. As of November 9, 2026, Grok 4.7 is the current top model in the official documentation. On ChatX, Grok 4.7 is the model with thinking mode and image upload.
500K contextCoding focusOn ChatX
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Modell
Grok 4.6 for long tasks and research
On August 12, 2026, xAI introduces Grok 4.6, built for long-running agents, multi-step research and visual and interactive work, with a 500,000-token context. Within two weeks, the model is also available in GitHub Copilot, Amazon Bedrock, the Gemini Enterprise Agent Platform and Microsoft Foundry.
500K contextThinking modeAgents
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Produkt
Grok Bot: AI teammates that keep working
With Grok Bot, xAI introduces persistent agents on August 11, 2026, each with its own cloud computer, connections to services, permissions and routines. At the end of September, Team Bots follow, sharing files, apps and knowledge within a team, and in early November a bot that works as a data analyst. Grok shifts from a chat window to an assistant that gets things done.
Own cloud computerTeam Bots Sep 28Routines
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Produkt
Imagine Image 2.0 and Video 1.5
Image and video become a product family of their own: Imagine Video 1.5, released July 31, 2026, takes text, image and voice references and delivers 1080p in certain modes, while Imagine Image 2.0, released August 7, 2026, brings editing with multiple reference images. Both products run at the provider and through its Imagine API, not through the Grok text models on ChatX.
1080p videoMultiple referencesOwn API since 01/2026
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Modell
Grok 4.5 targets coding and agents
Grok 4.5 first appears in the API on July 8, 2026, is officially presented on July 16 and reaches the web, X, iOS and Android on July 22. According to xAI, it was trained on tens of thousands of GB300 GPUs with a focus on multi-step software development and long agent workflows. The same month brings Grok add-ins for Excel, Outlook, Google Docs, Sheets and Slides, plus integration into GitHub Copilot.
API firstCoding + agentsOffice and Workspace
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SpaceX, investigations and Grok 4.3 · early 2026
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Modell
Grok 4.3 with about one million tokens of context
In April 2026, Grok 4.3 arrives with about one million tokens of context and deliberately low pricing in the API. A dedicated launch post is less clearly documented in today's product timeline, and rollout reports place the release in April. On ChatX, Grok 4.3 is the fast model that runs without signing up.
~1M contextLow-costGuest model on ChatX
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Modell
Grok 4.20 runs several agents in parallel
On March 10, 2026, xAI introduces Grok 4.20 and a multi-agent setup in which several model instances work on one task in coordination. Parallel reasoning becomes an official product path instead of an experiment.
Multi-agentParallel reasoning
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Firma
SpaceX takes over xAI
On February 2, 2026, SpaceX announces its acquisition of xAI, less than a year after xAI itself had swallowed X. Grok now sits organizationally under SpaceX, and the provider's current pages appear as “SpaceX Super Intelligence”, or SpaceXSI for short. For users, nothing changes about the product at first, but the name on older publications was updated after the fact.
SpaceXSI brandSame group as X
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Regulierung
European Commission, ICO and DPC open proceedings over Grok on X
After reports of sexualized manipulated images of real people made with Grok's image features on X, the European Commission opens proceedings against X under the Digital Services Act on January 26, 2026. On February 3, the UK data protection authority ICO follows with investigations into X and xAI, and on February 17 the Irish DPC opens its own GDPR proceedings. Opening proceedings does not yet mean a violation has been found.
DSA proceedingsICO Feb 3DPC Feb 17
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Grok 3, Grok 4 and the X takeover · 2025
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Modell
Grok 4.1 gets chattier and hallucinates less
After a quiet test run from November 1 to 14, Grok 4.1 launches on November 17, 2025, on grok.com, X, iOS and Android. The focus is on conversation quality, personality and fewer hallucinations, and xAI reports a clear user preference over its predecessor. Two days later, Grok 4.1 Fast and an Agent Tools API for tool calls and search follow.
Conversation qualityFewer hallucinationsAgent Tools API
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Modell
Grok 4 Fast with a two-million-token context for everyone
Grok 4 Fast, released September 19, 2025, uses the same set of weights for answers with and without a thinking phase and offers a two-million-token context window. xAI promotes much lower costs at comparable benchmark performance, and all users, including the free tier, get access. On August 28, Grok Code Fast 1 had already appeared, a dedicated model for agentic coding.
2M contextReasoning on/offFree tier too
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Modell
Grok 4 and Grok 4 Heavy with native tool use
On July 9, 2025, xAI introduces Grok 4, which builds tools and real-time search directly into how it finds answers. It is available for SuperGrok, X Premium+ and the API, and the new SuperGrok Heavy plan gets Grok 4 Heavy, a version with several instances working in parallel. Calling it the “smartest model in the world” is the provider's marketing claim.
Tool useReal-time searchHeavy plan
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Regulierung
Irish DPC investigates training on EU posts
On April 11, 2025, the Irish Data Protection Commission opens a formal inquiry into whether X processed public posts from the EU lawfully and transparently to train the Grok models. The underlying question of when a social network may use its users' posts for an AI model remains open from a regulatory standpoint.
GDPRLawfulnessTransparency
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Firma
xAI takes over X
On March 28, 2025, Elon Musk announces that xAI is acquiring X in an all-stock deal. The reasoning: data, models, computing power, distribution and talent should come together in one company. Grok's access to X's real-time data becomes part of the corporate structure rather than a partnership.
All-stock dealData + models + reach
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Modell
Grok 3 thinks before it answers
Grok 3 is presented around February 17 and 18, 2025, and the official technical post is dated February 19. According to xAI, the model was trained with about ten times the computing power of earlier top models, and with Grok 3 Think and Grok 3 mini it brings a true thinking mode based on reinforcement learning for the first time. At the same time, X Premium+ becomes much more expensive, and from April 3 Grok 3 is also available in the API.
Think mode10× computeAPI from 04/2025
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Grok 2, open weights and API · 2024
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Produkt
Grok free for all X users, Aurora image model
On December 9, 2024, xAI introduces Aurora, its own image generation model that can also edit images. Three days later, a revised version of Grok 2 becomes free for all X users, with web search and sources, while premium tiers keep higher limits. In early 2025, standalone web and iOS versions follow, so Grok is no longer limited to X.
Free on XAuroraOwn app 01/2025
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Produkt
Public API beta opens Grok to developers
On November 4, 2024, the first publicly available developer API launches with the grok-beta model, a 128,000-token context, function calling and system prompts. The API is deliberately compatible with those from OpenAI and Anthropic, which makes switching easier. Services like ChatX connect to the Grok models today through this official API.
128K contextOpenAI-compatibleFunction calling
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Modell
Grok 2 and Grok 2 mini understand images
Grok 2 and Grok 2 mini launch on August 13, 2024, for Premium and Premium+ users on X, with text and image understanding. For image generation, xAI initially relies on FLUX.1 from Black Forest Labs. Grok 2 had previously been tested anonymously in the LMSYS Arena, and xAI presents it as competitive with the top models of the time.
Image understandingFLUX.1 for imagesPremium and Premium+
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Regulierung
DPC halts training on EU posts
Between May 7 and August 1, 2024, X processes public posts from EU users to train Grok, with an option to object in the settings from July 16. After an urgent application by the Irish Data Protection Commission, X agrees on August 8, 2024, to suspend this processing; on September 4 the commitment becomes permanent, and according to the DPC the affected data is deleted. In March 2025, the Swiss regulator considers the opt-out solution sufficient.
Suspended Aug 8Opt-out since Jul 16Data deleted
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Modell
Grok 1.5 and Grok 1.5V: long context and first images
Grok 1.5, released March 28, 2024, expands the context to 128,000 tokens and clearly improves math and coding, with the rollout on X following on May 15. With Grok 1.5V from April 12, 2024, Grok understands documents, charts, screenshots and photos for the first time. Alongside it, xAI introduces RealWorldQA, its own benchmark for spatial understanding.
128K contextFirst image understandingRealWorldQA
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Forschung
Grok 1 released as an open-weights model
On March 17, 2024, xAI publishes the weights and architecture of Grok 1 under the Apache 2.0 license. The model is a mixture-of-experts network with 314 billion parameters, a quarter of which are active per token. What was released is the base checkpoint, not the chatbot tuned for conversation, and later Grok generations stayed closed.
Apache 2.0314 bn parametersMixture of experts
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xAI and the first Grok · 2023
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Modell
Grok is announced and launches on X
On November 3, 2023, xAI announces Grok: humorous, “rebellious” and with real-time knowledge from X, after only about two months of training. Selected US users get access through a waitlist first, and from December 7, 2023, Grok rolls out to Premium+ subscribers on X. From the start, Grok is part of the X subscription rather than a standalone product.
Grok 1Real-time data from XPremium+ from Dec 7
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Firma
xAI is unveiled
After X.AI Corp. is founded in Nevada in March 2023, Elon Musk publicly presents the company on July 12, 2023, with the stated goal to “understand the true nature of the universe”. In August, Grok 0 follows as a first prototype with 33 billion parameters. xAI positions itself as an independent company closely tied to X and Musk's other businesses.
Founded 03/2023Elon MuskGrok 0 in August
Compiled from public announcements by xAI and press reports; updated when new models arrive.
More AI models on ChatX
Last reviewed: 10. November 2026 · Source: xAI