Advanced Logical MATH
Achieve over 86% accuracy on complex mathematical reasoning and graduate-level symbolic logic using grok.
grok-4.3 / image-to-text
grok 4.3 is xAI's high-performance reasoning model. It excels in multi-step logic and real-time synthesis using X data. The grok 4.3 api offers 512k context and state-of-the-art math benchmarks for developers building complex agentic systems.
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Core Features of the grok 4.3 api
Experience the next generation of reasoning with the grok 4.3 api, featuring live-search and high-precision math.
512k Context Window
Process entire codebases or massive legal archives with a 99.9% needle-in-a-haystack retrieval rate.
Native Python Sandbox
Verify results and perform data visualization during inference with grok's built-in code execution environment.
Live-Search Synthesis
Harness real-time data from X and the web to minimize hallucinations in news-sensitive queries with the grok 4.3 api.
Build with grok 4.3 in Minutes
Follow these simple steps to set up your account, get credits, and start sending API requests to grok 4.3 via GPT Proto.
Sign up
Create your free GPT Proto account to begin. You can set up an organization for your team at any time.
Top up
Your balance can be used across all models on the platform, including grok 4.3, giving you the flexibility to experiment and scale as needed.
Generate your API key
In your dashboard, create an API key — you'll need it to authenticate when making requests to grok 4.3.
Make your first API call
Use your API key with our sample code to send a request to grok 4.3 via GPT Proto and see instant AI-powered results.
grok 4.3 api Frequently Asked Questions
What makes the grok 4.3 api unique?
The grok 4.3 api stands out due to its Live-Search pipeline, which pulls real-time data from the X platform. This allows grok to provide up-to-the-minute insights that static models miss. Combined with its high-performance reasoning and state-of-the-art mathematical capabilities, grok is ideal for applications requiring both current awareness and deep logical processing.
Is the grok 4.3 api OpenAI compatible?
Yes, the grok 4.3 api is designed to be 100% OpenAI-compatible. You can easily migrate your existing projects by simply swapping the base URL and model name in your current SDK configuration. This makes it effortless to integrate grok's advanced reasoning into your established workflows without rewriting your entire codebase.
How much does the grok 4.3 api cost?
Our platform offers grok 4.3 api access at $5.00 per 1M input tokens and $15.00 per 1M output tokens. We also provide significant discounts for batch processing and prompt caching. Enterprise users can benefit from additional volume discounts and unified billing through GPTProto.com, often making it more cost-effective than direct xAI billing.
Does grok 4.3 support multimodal inputs?
Absolutely. The grok 4.3 model features native multimodal support, allowing it to process and analyze image, video, and audio inputs. This makes the grok 4.3 api a versatile choice for complex tasks like converting technical blueprints into structured data or extracting insights from visual media in real-time.
What is the grok 4.3 context window size?
The grok 4.3 api supports a massive context window of 512,000 tokens. This allows you to feed grok entire libraries, long-form legal contracts, or large software repositories. With a needle-in-a-haystack accuracy rate of over 99.9%, grok ensures that critical information is never lost, even in the largest datasets.
Is my data used to train the grok model?
No. When you access the grok 4.3 api through GPTProto.com, your data is protected under our Enterprise Privacy Agreement. Neither we nor xAI use your API request data to train future iterations of the grok model, ensuring your proprietary information remains confidential and secure.
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