Grok 4.5

Q: Who created Grok 4.5?

Grok 4.5 was created by xAI. xAI is Elon Musk's AI company, focused on developing AI that understands the universe.

Q: How much does Grok 4.5 cost?

Grok 4.5 is a premium model available to RyddleAI subscribers. It uses premium message credits from your subscription quota. Visit our pricing page for current plans.

Q: What types of input does Grok 4.5 accept?

Grok 4.5 is a multimodal model that supports text and image and file to text. This means you can interact with it using multiple types of content.

Q: What is Grok 4.5's context window?

Grok 4.5 has a context window of 500K tokens (approximately 375,000 words). This determines how much conversation history or input text the model can consider when generating responses.

Q: How can I use Grok 4.5 on RyddleAI?

You can use Grok 4.5 directly in RyddleAI's chat interface. Simply select it from the model dropdown menu, or use our model comparison feature to see how Grok 4.5 responds alongside other AI models.

by xAI

Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

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Quick Facts

Provider

xAI

Model ID

x-ai/grok-4.5

Modality

Text and Image and File to Text

Tier

Premium

Last Updated

2026-07-22

Released

2026-07-08

Context Length

500K tokens

Tokenizer

Grok

Input Price

$2.00/M

Output Price

$6.00/M

When To Use Grok 4.5

Best for

Coding, debugging, and implementation planning
Reasoning-heavy questions and step-by-step analysis
Research, summarization, and document work
Image understanding, screenshots, and visual questions
Comparing xAI responses against other leading AI models

Not ideal for

High-volume casual chats where you want to conserve premium credits
Native image generation workflows
Voice, speech, or audio transcription workflows

Input & Output

Accepts

text

image

file

Generates

text

Pricing

All prices are per 1 million tokens

Input

$2.00/M

Output

$6.00/M

Cache Read

$0.30/M

Web Search

$5000.00/M

Capabilities

Natural language understanding and generation
Image analysis and understanding
Long context window for extended conversations

Example Prompts

Review this TypeScript function for edge cases, bugs, and simpler implementation options.

Turn this product requirement into a small implementation plan with tests.

Solve this problem step by step, then summarize the final answer in one paragraph.

Summarize these notes into key findings, risks, and recommended next steps.

Analyze this screenshot and explain what is happening, including any UI issues.

Supported Parameters

frequency_penaltyinclude_reasoninglogprobsmax_tokenspresence_penaltyreasoningreasoning_effortresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_logprobstop_p

Compare and Use Grok 4.5

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Related tasks

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Frequently Asked Questions

What is Grok 4.5?

Who created Grok 4.5?

How much does Grok 4.5 cost?

What types of input does Grok 4.5 accept?

What is Grok 4.5's context window?

How can I use Grok 4.5 on RyddleAI?

Try Grok 4.5 In Related Workflows

Model pages work best when they connect to real tasks. Use these bots and utilities to test Grok 4.5 against coding, research, and model-selection workflows.

Use Grok 4.5 on RyddleAI

Access Grok 4.5 with a RyddleAI subscription.

Try Grok 4.5 View Pricing Compare Models

Compare Grok 4.5 With Alternatives

Use these nearby models to test whether Grok 4.5 is the right choice for your prompt, budget, and model family preference.

Alternative	Provider	Tier	Why compare	Page
Grok Build 0.1	X-ai	Premium	Another xAI model to compare within the same provider family	View model
Grok 4.3	X-ai	Premium	Another xAI model to compare within the same provider family	View model
Gemini 3.6 Flash	Google	Premium	Same tier alternative from another provider	View model
Gemini 3.5 Flash Lite	Google	Premium	Same tier alternative from another provider	View model

Grok Build 0.1

X-ai

Grok 4.3