xAI

Grok 3 Mini

Grok 3 Mini is a proprietary model from xAI. It ranks #187 of 351 on the LMArena text leaderboard with a rating of 1370.

LMArena text1370
Rank#187/351
95% interval1364–1375
Votes15.6K
Developer
xAI
Released
Oct 20, 2026
Context window
—
Price in / out, per 1M tokens
—
Weights
Proprietary
Inputs
—
Reasoning
—
Tool use
—

LMArena, by category

LeaderboardRatingRankVotes
TextLMArena1370187 / 35115.6K
CodingLMArena1379196 / 3463.2K
MathLMArena1386183 / 339967
Creative writingLMArena1334186 / 3491.9K
Instruction followingLMArena1357182 / 3514.2K
Hard promptsLMArena1374182 / 3517.3K
Multi-turnLMArena1355198 / 3492.5K
Long queriesLMArena1372181 / 3303.2K
ExpertLMArena1395167 / 305911
Legal and governmentIndustries1391169 / 3251.1K
Medicine and healthcareIndustries1390169 / 325956
Business and financeIndustries1344202 / 3442.6K
ChineseLanguages1387191 / 328870
SpanishLanguages1360183 / 249322
GermanLanguages1350173 / 261416
FrenchLanguages1347195 / 252170
JapaneseLanguages1317151 / 236398

LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.

Compare Grok 3 Mini

xAI

The lab behind Grok, trained on one of the largest compute clusters and integrated with X. Founded 2023, based in San Francisco Bay Area. x.ai

Questions

Who makes Grok 3 Mini?

Grok 3 Mini is made by xAI, founded 2023 and based in San Francisco Bay Area.

How does Grok 3 Mini rank?

#187 of 351 on LMArena’s text leaderboard, rated 1370 (95% interval 1364–1375) from 15,591 votes, as of Oct 22, 2026.

Is Grok 3 Mini open source?

No. Grok 3 Mini is proprietary and served through its provider’s API.

Sources

Every number on this page comes from these sources; models without a published number show none. Download the data. Cite as “Nexus Explorer, nexus.inc/models”.