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xAI · API model

Grok 4.5

Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.

Context
500K
Input / 1M
$2
Output / 1M
$6
Released
Jul 8, 2026
Specifications

Grok 4.5 specs

Provider
xAI
Type
API model
Model ID
x-ai/grok-4.5
Context window
500,000 tokens500K
Input price
$2per 1M input tokens
Output price
$6per 1M output tokens
Accepts
file, image, text
Produces
text
Released
Jul 8, 2026
Popularity
33/100position #93 in OpenRouter's weekly usage ranking
Source
OpenRouter
Overview

About Grok 4.5

Grok 4.5 is an API model from xAI, released on Jul 8, 2026, with a context window of 500,000 tokens, pricing of $2 per million input tokens and $6 per million output tokens. It accepts file, image, text input and produces text output.

At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.026.

Specs are sourced from OpenRouter and were last checked on Nov 3, 2026. Always confirm current pricing and limits with the provider before production use.

Tool callingStructured outputsJSON modeReasoning
FAQ

Grok 4.5 questions

What is the context window of Grok 4.5?

Grok 4.5 supports a context window of 500,000 tokens.

How much does Grok 4.5 cost?

Grok 4.5 is listed at $2 per million input tokens and $6 per million output tokens on OpenRouter.

When was Grok 4.5 released?

Grok 4.5 was published on Jul 8, 2026.

What inputs does Grok 4.5 accept?

Grok 4.5 accepts file, image, text input and produces text output.