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Gemini 4 Argon1526Claude Opus 5.51516Claude Fable 5.11513Claude Opus 51508Claude Opus 4.61502▲4Muse Wonder1501Gemini 3.8 Flash1498MiMo-V2.6-Pro1491Muse Spark 1.31491Claude Fable 51491▼2Claude Opus 4.71490▲6Gemini 3.7 Flash1490Qwen3.8-Max1484▲3Gemini 3.5 Flash1482▼1Muse Spark 1.21482▼8Gemini 3.1 Pro Preview1480▲0Gemini 3.6 Flash1480▲0Gemini 3 Pro1480Muse Spark 1.11478▼2Qwen3.7-Max-Preview1475▲1Kimi K31475▲2Muse Spark1474▲1GLM-5.31474Claude Sonnet 5.51473GLM-5.3-Flash1472▲1GPT-5.51472▲6Qwen3.5-Max-Preview1470▼1GLM-5.21470▲6GPT-5.41469▲17ERNIE 5.11468▼0Gemini 3 Flash1466▼1DeepSeek-V4.1-Flash-202609101464Gemini 4 Argon1526Claude Opus 5.51516Claude Fable 5.11513Claude Opus 51508Claude Opus 4.61502▲4Muse Wonder1501Gemini 3.8 Flash1498MiMo-V2.6-Pro1491Muse Spark 1.31491Claude Fable 51491▼2Claude Opus 4.71490▲6Gemini 3.7 Flash1490Qwen3.8-Max1484▲3Gemini 3.5 Flash1482▼1Muse Spark 1.21482▼8Gemini 3.1 Pro Preview1480▲0Gemini 3.6 Flash1480▲0Gemini 3 Pro1480Muse Spark 1.11478▼2Qwen3.7-Max-Preview1475▲1Kimi K31475▲2Muse Spark1474▲1GLM-5.31474Claude Sonnet 5.51473GLM-5.3-Flash1472▲1GPT-5.51472▲6Qwen3.5-Max-Preview1470▼1GLM-5.21470▲6GPT-5.41469▲17ERNIE 5.11468▼0Gemini 3 Flash1466▼1DeepSeek-V4.1-Flash-202609101464
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Cohere

Aya Expanse 8B

Aya Expanse 8B is an open-weight model from Cohere. It ranks #331 of 351 on the LMArena text leaderboard with a rating of 1185.

LMArena text1185
Rank#331/351
95% interval1178–1192
Votes9.8K
Developer
Cohere
Released
Oct 20, 2026
Context window
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Price in / out, per 1M tokens
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Weights
Open · CC-BY-NC-4.0
Inputs
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Reasoning
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Tool use
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LMArena, by category

LeaderboardRatingRankVotes
TextLMArena1185331 / 3519.8K
CodingLMArena1160338 / 3461.6K
MathLMArena1168325 / 3391.3K
Creative writingLMArena1168325 / 3491.5K
Instruction followingLMArena1155333 / 3514K
Hard promptsLMArena1156336 / 3512.6K
Multi-turnLMArena1160331 / 3491.7K
Long queriesLMArena1191323 / 3301.5K
ExpertLMArena1153309 / 305600
Legal and governmentIndustries1225307 / 325551
Medicine and healthcareIndustries1203301 / 325470
Business and financeIndustries1176319 / 3441.1K
ChineseLanguages1181320 / 328618
GermanLanguages1188261 / 261240
JapaneseLanguages1120245 / 236231

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

Compare Aya Expanse 8B

Cohere

An enterprise-focused lab behind Command models, retrieval and embeddings. Founded 2019, based in Toronto. cohere.com

Questions

Who makes Aya Expanse 8B?

Aya Expanse 8B is made by Cohere, founded 2019 and based in Toronto.

How does Aya Expanse 8B rank?

#331 of 351 on LMArena’s text leaderboard, rated 1185 (95% interval 1178–1192) from 9,818 votes, as of Oct 22, 2026.

Is Aya Expanse 8B open source?

Aya Expanse 8B has open weights under the CC-BY-NC-4.0 license.

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”.