Grok Build 0.1

Apr 2026
Grok Build 0.1
Compare in
on
—per task?
$1 / $2per 1M in / outcache $0.20
66 tok/sfirst token in 1.4 s?
256Kcontext

Rankingin thinking mode?

Full ranking →
1Opus 5.561.42Fable 5.159.13Gemini 4 Argon57.14Fable 555.55Sonnet 5.555
···
50GPT-6 Luna38.551Grok Build 0.138.352Qwen Flash38

Strong at

A
Reasoning#51 of 334Science#41 of 312Knowledge#47 of 318
B
Agents & work tasks#70 of 175Long context#90 of 273Vision#38 of 124

Alternatives?

ModelScoreCostPer taskWhat changes
CheaperMiMo v2.6 ProthinkingOpen+29%-57%$0.13Pass back reasoning_content+3BetterClaude Haiku 5.5xhigh+12%-84%$0.12Remove sampling parameters+5CheaperMiniMax M3.1 Flashthinking+25%-79%$0.22Complete model response must be appendedCheaperDeepSeek V4.1 Flash 1017maxOpen+13%-58%$0.26Pass back reasoning_content · Chat Completions+4CheaperGLM 5.3 FlashmaxOpen+4%-81%$0.28Defaults to max · Self-hosted+4

Benchmarks

in Chat & Knowledge
AA Intelligence Index 4.3.2≈27.2#66
AA Omniscience Index6.4#47
AA Omniscience · Accuracy51.5#18
AA Omniscience · Hallucination Rate93.1#287
Humanity's Last Exam38.3#51
GPQA Diamond89.5#41
AA-LCR (long context) 1.174.7#90
CritPt (physics)9.1#63

FAQ

How much does Grok Build 0.1 cost?›

$1 per 1M input tokens and $2 per 1M output tokens; cached input $0.20 per 1M.

Is Grok Build 0.1 free to use?›

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

How good is Grok Build 0.1, and what is it best at?›

#51 of 334 in Chat & Knowledge, #14 of 20 in Coding, #70 of 175 in Agents & Tool Use, #38 of 124 in Vision & Documents. Strongest at: Reasoning, Science, Knowledge.

Is Grok Build 0.1 better than Grok Code Fast 1?›

On Humanity's Last Exam, Grok Build 0.1 scores 38.3 vs 8 — higher.

How can I use Grok Build 0.1?›

Through the API of xAI.

What is the context window of Grok Build 0.1?›

256K tokens, with up to 230K output tokens.

When was Grok Build 0.1 released? Is there a newer version?›

Released 2026-04-16. It has been superseded by Grok 4.5.

Is Grok Build 0.1 open source?›

No, Grok Build 0.1 is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can Grok Build 0.1 read images?›

It accepts text and images, PDF files as input.

What is Grok Build 0.1?›

Grok Build 0.1 is a closed language model from xAI, released Apr 2026, the successor to Grok Code Fast 1.

What are the best alternatives to Grok Build 0.1?›

MiMo v2.6 Pro (cheaper), Claude Haiku 5.5 (better).