LLM prices per 1M tokens

264 models · 161 price changes

Grok 4.5

xAI · Reasoning · 500K context · released Jul 8, 2026 · checked 12h ago

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

Ways to buy 4

Way to buyIn / out per 1M
xAI API
The lab's own API · cached $0.3
$2 / $6List price
xAI
zdr · cached $0.3
$2 / $6Same as list
xAI
priority · cached $0.6
$4 / $12+100% vs list
xAI
zdr-priority · cached $0.6
$4 / $12+100% vs list

USD per 1M tokens. Regions are separate routes.

Through a gateway

Your own numbers

100M input and 20M output tokens a month: $320.00 direct.

A dash: not on that gateway's own model list. No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.

Related models

In / out per 1M
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$2 / $6Grok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6.
Grok 4.6
xAI · 500K
$2 / $6Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Grok Build 0.1
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$1 / $2Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows.
Grok 4.3
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$1.25 / $2.5Grok 4.3 is a reasoning model from SpaceXAI.
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Gemini 4 Argon
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Claude Sonnet 5.5
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GPT-6.1 Terra
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$1 / $5GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol.

About Grok 4.5

Takes text, image, files in and returns text. First listed Jul 17, 2026. Up to 450K output tokens. Blended price $3 per 1M tokens at 3 input to 1 output. Model id grok-4-5.

Price history

$3Jul 17, 2026Output $6Input $2

List price since Jul 17, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.

  • Price cutJul 20, 20263 months ago-40%
    Grok 4.5

    xAI cut its API price: cached input $0.5 to $0.3 per 1M tokens.

Questions

How much does Grok 4.5 cost?

$2 per million input tokens and $6 per million output tokens, with cached input at $0.3.

What is the context window of Grok 4.5?

500K tokens, with up to 450K tokens of output.

Where is Grok 4.5 cheapest?

Of 4 routes tracked, xAI is cheapest at $2 input and $6 output per million tokens.