OpenAI API vs xAI API

OpenAI API provides GPT models and separate endpoints for images and audio, while xAI bundles text, image, video, and voice under one API.

Short answer: Pick OpenAI API if you want unified AI model and agent APIs; pick xAI API if you want unified generative AI API. xAI API is paid.

Which to pick

What it is: OpenAI API:OpenAI API provides access to GPT-6 series models, embeddings, image, speech and agent capabilities via a unified API.; xAI API:xAI API provides a unified API for text, code, image, video, and voice generation using Grok models.
Best for: OpenAI API:Unified AI model and agent APIs; xAI API:Unified generative AI API
Who it’s for: OpenAI API:Developers building AI-powered applications and agents; xAI API:Developers building AI-powered apps, agents, and media generation features.
Pricing: OpenAI API:Pay-as-you-go; xAI API:Paid
Works with: OpenAI API:—; xAI API:cURL

Frontier models. Access GPT-6 series with up to 1.05M context and 128K output tokens.
Pay-as-you-go pricing. Input and output tokens billed per million (e.g., $0.10-$10 per 1M tokens).
Agent SDK & Responses API. Create workflows, add voice with GPT-Live-1, and integrate tools like web and file search.
Enterprise security. Zero data retention, SOC 2, HIPAA BAA, encryption at rest and in transit.
Built-in tools for agents. Web search, file search, remote MCP servers, and voice capabilities.

Text & Code Generation. Generate text and code with Grok models via a standard chat completions endpoint.
Image & Video Generation. Create and edit images and videos using the Imagine API with per-image or per-second pricing.
Voice Capabilities. Realtime speech-to-speech, text-to-speech, and speech-to-text via the Voice API.
Live Web & X Search. Integrate real-time web and X (Twitter) search results into responses.
File & Collection RAG. Upload documents and query them with built-in file and collection search tools.
Enterprise Controls. SSO, audit logging, SOC 2, HIPAA, data residency, custom rate limits, and dedicated support.

What is the difference between OpenAI API and xAI API?+

OpenAI API provides GPT models and separate endpoints for images and audio, while xAI bundles text, image, video, and voice under one API.

Should I use OpenAI API or xAI API?+

Pick OpenAI API if you want unified AI model and agent APIs or OpenAI model ecosystem. Pick xAI API if you want unified generative AI API.

Is OpenAI API or xAI API free?+

xAI API is paid.

OpenAI API

Listed by DevHunt

xAI API

Listed by DevHunt

Based on each tool's website and DevHunt data. Details may change; check the official sites.