Cheapest xAI Models

Match · Updated July 2026

The cheapest xAI model is Grok Build 0.1 at $1.00 per million input tokens. Grok 4.3 ($1.25) and Grok 4.20 Multi-Agent ($1.25) round out the top three.

$1.00Input /M

256KContext

AI models ranked by input token price. The cheapest LLM APIs and most affordable AI models, from budget open-weight models to discounted frontier models.

Frequently asked

What is the cheapest xAI model?

The cheapest xAI model is Grok Build 0.1 at $1.00 per million input tokens. Grok 4.3 ($1.25) and Grok 4.20 Multi-Agent ($1.25) round out the top three.

What's a good alternative to Grok Build 0.1?

Grok 4.3 ($1.25) is the closest alternative on this metric, followed by Grok 4.20 Multi-Agent ($1.25). See the full ranking above for the tradeoffs.

How many xAI models are there?

modelgrep tracks 5 xAI models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Grok 4.5. 5 of them qualify for this ranking.

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All rankings

Small & Fast LLMs Best Local LLMs Smartest LLMs Best LLMs for Coding Best LLMs for Design & Frontend Fastest LLMs Lowest-Latency LLMs Best Free LLMs Best Reasoning LLMs Best Vision LLMs Best LLMs for Agents Best Open-Source LLMs Longest-Context LLMs Best LLMs for Writing Best LLMs for Math & Science Best LLMs for RAG Best LLMs for SQL & Data Analysis Best LLMs for Roleplay Best Uncensored LLMs