Grok 4.3

Apr 2026
Grok 4.3
Compare in
on
—per task?
$1.25 / $2.50per 1M in / outcache $0.20
93 tok/sfirst token in 19 s?
1Mcontext

Rankingat medium effort?

Alternatives?

History

8 versions
1,4001,4101,4201,430Jul 26Release dateArena Text · Polish4.34.54.64.7
1,4001,4101,4201,430Jul 26Release dateArena Text · Polish4.34.54.64.7

FAQ

How much does Grok 4.3 cost?›

$1.25 per 1M input tokens and $2.50 per 1M output tokens; cached input $0.20 per 1M.

Is Grok 4.3 free to use?›

There is no free API; the cheapest paid price is $1.25 per 1M input tokens.

How good is Grok 4.3, and what is it best at?›

#80 of 334 in Chat & Knowledge, #75 of 132 in Coding, #106 of 133 in Agents & Tool Use, #52 of 195 in Writing & Language, #41 of 124 in Vision & Documents. Strongest at: Tool calling, Reasoning, Science, Knowledge, Instructions.

Is Grok 4.3 better than Qwen3 Next 80B A3B Instruct?›

On Arena Text · Polish, Grok 4.3 scores 1,397.8 vs 1,398.1 — about the same.

How can I use Grok 4.3?›

Through the API of AWS Bedrock, xAI.

What is the context window of Grok 4.3?›

1M tokens, with up to 900K output tokens.

When was Grok 4.3 released? Is there a newer version?›

Released 2026-04-17. It has been superseded by Grok 4.6.

Is Grok 4.3 open source?›

No, Grok 4.3 is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Flash.

Can Grok 4.3 read images?›

It accepts text and images, PDF files as input.

What is Grok 4.3?›

Grok 4.3 is a closed language model from xAI, released Apr 2026, the successor to Grok 4.20.

What are the best alternatives to Grok 4.3?›

Gemini 3 Flash Preview (cheaper), GPT-5.6 Terra (better), MiMo v2.6 Flash (open weights).