Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Ways to buy 4
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
The lab's own API · cached $0.3 | $2 | $6 | $2 / $6List price | $0.3 | List price |
zdr · cached $0.3 | $2 | $6 | $2 / $6Same as list | $0.3 | Same as list |
priority · cached $0.6 | $4 | $12 | $4 / $12+100% vs list | $0.6 | +100% vs list |
zdr-priority · cached $0.6 | $4 | $12 | $4 / $12+100% vs list | $0.6 | +100% vs list |
USD per 1M tokens. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $320.00 direct.
Kong AI Gateway$320.00+0%
LiteLLM$320.00+0%
Vercel AI Gateway$320.00+0%
Cloudflare AI Gateway$336.00+5%
Requesty$336.00+5%
Eden AI$337.60+5.5%
OpenRouter$337.60+5.5%
HeliconeNot offeredNot offered
Neon AI GatewayNot offeredNot offered
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 | Cheapest route | |||||||
|---|---|---|---|---|---|---|---|---|
xAI · 500K | $2 | $6 | $2 / $6 | $3 | 500K | Lab list price | · | Grok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6. |
xAI · 500K | $2 | $6 | $2 / $6 | $3 | 500K | Lab list price | · | Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM. |
xAI · 256K | $1 | $2 | $1 / $2 | $1.25 | 256K | Lab list price | · | Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows. |
xAI · 1M | $1.25 | $2.5 | $1.25 / $2.5 | $1.56 | 1M | Lab list price | · | Grok 4.3 is a reasoning model from SpaceXAI. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. |
Google · 1MCheapest: $2 on Google Gemini API (flex) | $2 | $10 | $2 / $10 | $4 | 1M | $2 on Google Gemini API (flex) | · | Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. |
Anthropic · 1M | $2 | $10 | $2 / $10 | $4 | 1M | Lab list price | · | Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. |
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-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
List price since Jul 17, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
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.