What is the difference between OpenRouter and xAI?

OpenRouter and xAI are both cloud GPU providers offering different pricing models, features, and GPU availability. Use our comparison tool to see real-time pricing and feature differences.

Which is cheaper: OpenRouter or xAI?

Pricing varies by GPU model and usage requirements. Check our real-time comparison table to find the best deals for your specific needs.

Can I switch between OpenRouter and xAI?

Yes, both providers offer flexible cloud GPU services. However, consider factors like data transfer costs, setup time, and specific features when switching between providers.

OpenRouter vs xAI

Compare LLM inference API pricing between OpenRouter and xAI. Find the best rates for AI training, inference, and ML workloads.

OpenRouter

Provider 1

218

Models Available

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xAI

Provider 2

Models Available

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Comparison Overview

218

Total LLM Models

218

OpenRouter Models

xAI Models

Direct Comparisons

LLM API Pricing Comparison

Total models: 218Both available: 5OpenRouter: 218xAI: 5

Showing 15 of 218 models

Prices per 1M tokens · Last updated: 10/4/2026, 2:30:55 AM

Model ↑	OpenRouter	xAI	Input Diff ↕
Claude 4 Sonnet Anthropic	$3.00 in $15.00 out	Not available	—
Claude Fable 5 Anthropic	$10.00 in $50.00 out	Not available	—
Claude Fable 5.1 Anthropic	$10.00 in $50.00 out	Not available	—
Claude Haiku 4.5 Anthropic	$1.00 in $5.00 out	Not available	—
Claude Opus 4.1 Anthropic	$15.00 in $75.00 out	Not available	—
Claude Opus 4.5 Anthropic	$5.00 in $25.00 out	Not available	—
Claude Opus 4.6 Anthropic	$5.00 in $25.00 out	Not available	—
Claude Opus 4.7 Anthropic	$5.00 in $25.00 out	Not available	—
Claude Opus 4.8 Anthropic	$5.00 in $25.00 out	Not available	—
Claude Opus 5 Anthropic	$5.00 in $25.00 out	Not available	—
Claude Opus 5.5 Anthropic	$4.00 in $20.00 out	Not available	—
Claude Sonnet 4.5 Anthropic	$3.00 in $15.00 out	Not available	—
Claude Sonnet 4.6 Anthropic	$3.00 in $15.00 out	Not available	—
Claude Sonnet 5 Anthropic	$2.00 in $10.00 out	Not available	—
Claude Sonnet 5.5 Anthropic	$2.00 in $10.00 out	Not available	—

Features Comparison

OpenRouter

Unified Model Access
Single API endpoint for 500+ models from 80+ providers across text, image, video, and audio
Automatic Fallback Routing
Requests automatically route to the best available provider for each model
OpenAI-Compatible API
Drop-in replacement using the OpenAI SDK format
Provider Optimization
Routes to the fastest or cheapest provider based on your preference
Usage-Based Pricing
Pay per token with no minimum commitments or subscriptions
Prompt Caching
Reduced pricing for cached input tokens on supported models

xAI

Grok text models
Chat Completions and Responses endpoints for the Grok models, with configurable reasoning and tool calling
Server-side tools
Web Search, X Search, code execution, file and collection search, and remote MCP tools billed per invocation on top of tokens
Imagine and Voice APIs
Image and video generation billed per image or second, and speech-to-speech, speech-to-text and text-to-speech endpoints
Batch API
Asynchronous processing with a discount on selected models, typically completed within 24 hours
Priority Processing
Higher scheduling priority for lower latency at a premium over standard token rates
Prompt caching
Cached prompt tokens are billed at a reduced rate

Pros & Cons

OpenRouter

Advantages

Largest selection of models through a single API
Transparent per-token pricing with per-provider comparison for each model
Automatic failover across multiple providers
No vendor lock-in — switch models with a single parameter change

Considerations

Platform fee on pay-as-you-go usage (5.5% Standard, 8% Business)
Latency may be slightly higher due to routing layer
No fine-tuning or custom model training

xAI

Advantages

First-party access to Grok models
Cached-input rates published per model
Batch and priority tiers for cost or latency trade-offs
Also available through Google Cloud Vertex AI and Microsoft Foundry

Considerations

Only xAI's own models are offered
Long-context requests above the published prompt threshold are billed at a higher rate for the whole request
Server-side tool calls add per-invocation charges on top of tokens

Compute Services

OpenRouter

xAI

Pricing Options

OpenRouter

Free

25+ free models from a small set of providers, rate limited, with community support

Standard (pay-as-you-go)

Per-token model pricing plus a 5.5% platform fee, with no subscription

Business (pay-as-you-go)

8% platform fee; adds EU/US in-region routing, workload identity federation, and higher workspace limits

Enterprise

Custom agreements with fee discounts, SSO/SAML, contractual SLAs, invoicing options, and a dedicated support team

Prompt caching

Discounted rates for cached input tokens on supported models (paid plans)

xAI

Per token

Input, cached input, and output tokens billed per 1M, with a higher long-context rate above a prompt-size threshold

Batch

Discounted asynchronous processing for selected models

Priority

A premium over standard rates for higher scheduling priority

Getting Started

OpenRouter

Get Started

1
Create an account
Sign up at openrouter.ai; an organization for your team can be set up later
2
Buy credits
Purchase credits usable with any model or provider (credit card, crypto, and more)
3
Get API key
Create an API key from your dashboard
4
Make API calls
Use OpenAI-compatible endpoints or the OpenRouter Client and Agent SDKs with your key

xAI

Get Started

1
Create an account
Sign up on the xAI console and add credits
2
Create an API key
Generate a key in the console
3
Call the API
Send requests to api.x.ai with an OpenAI-compatible client or the xAI SDK

Support & Global Availability

OpenRouter

Global Regions

Global — routes to providers across multiple regions for optimal latency

Support

Community support on the Free plan, email support on Standard and Business, dedicated support team on Enterprise; documentation and Discord community

xAI

Support

Documentation, status page, and console support