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xAI API

Paid#8 of 63 in AI Model APIs

xAI API: A broad, OpenAI-compatible API suite for multimodal generation at usage-based rates. Ranked #8 of 63 in AI Model APIs by our editors (8.8/10); pricing: Paid; best for low-cost multimodal generation APIs.

8.8/10Editor score

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xAI API8.8 Visit xAI API

At a glance

Editor score
8.8 / 10
Pricing
Paid
Best for
Low-cost multimodal generation APIs
Free plan
No
Paid from
$0.002/unit usage-based
Language models
Yes
Founded
2023
Facts checked
13 Oct 2026

Where it wins
- OpenAI-compatible REST API supports responses and chat completions
- Covers text, reasoning, image, video, speech and realtime voice workloads
- Works with OpenAI, Anthropic, Python, TypeScript, JavaScript and Swift tools
Where it doesn't
- No free plan for evaluating the API without paid usage
- Usage-based billing can make cost forecasting more involved
- Many modalities and endpoints require careful model and API selection

Our verdict on xAI API

xAI API gives developers programmatic access to hosted Grok language and reasoning models through an OpenAI-compatible REST API. It supports text generation, coding, image understanding, image generation, video generation, speech-to-text, text-to-speech and realtime voice applications. Teams can work through API keys in the xAI Console, with cloud deployment suited to small, mid-market and enterprise organizations building multimodal features.

Pricing is usage-based and varies by model and modality. grok-build-0.1 costs $1 per 1M input tokens, while grok-4.3 and grok-4.20 models cost $1.25 per 1M input tokens. grok-4.5, grok-4.6 and grok-4.7 cost $2 per 1M input tokens. Imagine image generation starts at $0.002 per image, with text and image input and resolution- and quality-dependent pricing. Speech-to-text REST is priced at $0.1 per hour for file-based transcription. There is no free plan, so teams should budget for paid API usage from the outset.

The platform’s ecosystem fit is a major strength: integrations include OpenAI and Anthropic SDKs, Python, TypeScript, JavaScript, Swift, Microsoft Azure AI Foundry, Oracle OCI Generative AI and Google Vertex Model Garden. Beyond generation, files, batches, collections search and model-listing or pricing-metadata endpoints support application workflows. Published compliance options include SOC 2, HIPAA and SSO/SAML, while support is available through email, community and documentation. Choose xAI API when one provider needs broad text, image, video and voice coverage; choose a narrower service if you want a free starting tier or a simpler single-modality setup.

Your product? Our editors can test xAI API in depth and publish a review, labelled as paid · from $99/mo →

xAI API pricing

Plans PaidPaid No free plan — trial or paid only. Prices checked 13 Oct 2026.

See plans on x.ai

All 8 xAI API plans and prices →

xAI API fact sheet

Free plan	No
Paid from	$0.002/unit usage-based
Language models	Yes
Image generation	Yes
Audio and speech	Yes
Multimodal models	Yes
Embedding models	Not verified
Max context window	1e+06 tokens
SDK languages	Python, TypeScript, JavaScript, Swift
Deployment	Cloud
Platforms	Web
Compliance & security	SOC 2, HIPAA, SSO/SAML
Support	Email, Community, Docs
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Integrations	9 integrations: OpenAI SDK, Anthropic SDK, Python, TypeScript, JavaScript, Swift …
Pricing	Paid (source)
Website	x.ai
Facts checked	13 Oct 2026

xAI API integrations

xAI API lists 9 integrations on its own site.

OpenAI SDK
Anthropic SDK
Python
TypeScript
JavaScript
Swift
Microsoft Azure AI Foundry
Oracle OCI Generative AI
Google Vertex Model Garden

Alternatives to xAI API

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xAI API vs the competition

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used xAI API for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

xAI API is listed in our AI Model APIs directory. Add the badge to your site — it links back to this page.

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Guides on AI model APIs

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 21 Oct 2026 · How we research and update