November 4, 2024 - Starting today, developers can build on our Grok foundation models using our newly released API. We will run a public beta program until the end of 2024 during which everyone will get $25 of free API credits per month.

For users using our Collections API and Documents Search, the following pricing applies: A rare occurrence for most users, when your request is deemed to be in violation of our usage guideline by our system, we will charge a $0.05 per request usage guidelines violation fee. No access to realtime events without Live Search enabled · Grok ...

December 14, 2025 - Puter is the pioneer of the "User-Pays" ... cover their own usage costs. This model enables developers to access advanced AI capabilities for free, without any API keys, usage costs, or server-side setup....

April 11, 2025 - Accessing Grok 3 and Grok 3 Mini "for free" through OpenRouter presents an excellent opportunity to explore these powerful AI models without committing to an X Premium+ subscription.

1 month ago - We're proud to bring you Grok 4 access on the API, offering advanced reasoning, coding, and visual processing capabilities.View docs

As of 2025, there is no indefinite, completely free tier for the Grok API. However, xAI provides a significant incentive for developers to get started through a promotional credit program. Eligible teams can receive $150 in monthly free API credits.

November 23, 2025 - The free tier prioritizes conversational breadth over depth, meaning users can sample the model but cannot engage in prolonged or multi-step tasks. ... xAI regularly offers promotional windows granting developers free usage of Grok 4.1 Fast ...

September 22, 2025 - xAI has made Grok 4 Fast available to all users, including those on the free tier, with access through web browsers, iOS, and Android. This broader rollout brings the model to a global audience, making experimentation easier for casual users ...

What are the current limits for Grok 3? I'm using it on the free plan (Elon Musk tweeted that it's t

March 25, 2025 - Limited free tier usage · Complicated setup process · Cost: $16/month (X Premium) + usage fees · Verdict: Not recommended for most users due to cost, restrictions, and complexity. Several open-source libraries offer unofficial access to Grok 3: Python wrappers that replicate the API ·

xAI is offering $150 per month in free API credits for teams that opt in to data sharing (available in eligible countries*).

Currently, no official free tier exists for Grok 4 API access. xAI maintains a purely commercial model with a $25 monthly minimum commitment. Occasional hackathon partnerships or research grants provide temporary access, but these opportunities remain extremely rare and highly competitive.

November 19, 2025 - Grok 4.1 Fast is xAI's best agentic tool calling model that shines in real-world use cases like customer support and deep research. Run Grok 4.1 Fast with API

January 2, 2025 - Learn about each step you'll need to take to generate your API key for any of xAI's Grok models.

June 24, 2025 - Grok 3’s free tier imposes several negotiated usage caps. Under the free plan, users are limited to 10 text prompts every two hours, 10 image generations every two hours, and only three image analyses per day .

September 10, 2025 - Grok API limits vary by subscription tier: 100 requests per minute · 10,000 requests per month · 4,096 max tokens per request · 2 concurrent requests · 500 requests per minute · 50,000 requests per month · 8,192 max tokens per request · 10 concurrent requests ·