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Step 5 Preview
Llama 3.1 8B Instruct
Llama 3.1 8B Instruct is an open-weight model from Meta, released Jul 23, 2024. It ranks #329 of 351 on the LMArena text leaderboard with a rating of 1187. It costs $0.05 per million input tokens and $0.08 per million output tokens, with a 128K-token context window.
- Developer
- Meta
- Released
- Jul 23, 2024
- Context window
- 128K
- Price in / out, per 1M tokens
- $0.05 / $0.08
- Weights
- Open · Llama 3.1 Community
- Inputs
- Text
- Reasoning
- No
- Tool use
- Yes
- Hugging Face downloads, 30 days
- 4.9M
- Hugging Face likes
- 8.6K
The rating LMArena published at each update since Jul 30, 2024. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1187 | 329 / 351 | 49.6K |
| CodingLMArena | 1195 | 320 / 346 | 8.6K |
| MathLMArena | 1179 | 322 / 339 | 7.1K |
| Creative writingLMArena | 1154 | 331 / 349 | 7.3K |
| Instruction followingLMArena | 1159 | 330 / 351 | 19.8K |
| Hard promptsLMArena | 1175 | 323 / 351 | 13.5K |
| Multi-turnLMArena | 1172 | 326 / 349 | 8.9K |
| Long queriesLMArena | 1181 | 327 / 330 | 6.7K |
| ExpertLMArena | 1144 | 317 / 305 | 2.6K |
| Legal and governmentIndustries | 1206 | 316 / 325 | 2.9K |
| Medicine and healthcareIndustries | 1182 | 312 / 325 | 2.6K |
| Business and financeIndustries | 1166 | 323 / 344 | 5.7K |
| ChineseLanguages | 1151 | 326 / 328 | 4.4K |
| SpanishLanguages | 1169 | 269 / 249 | 565 |
| GermanLanguages | 1144 | 276 / 261 | 1.3K |
| FrenchLanguages | 1178 | 264 / 252 | 478 |
| JapaneseLanguages | 1061 | 256 / 236 | 1.2K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Llama 3.1 8B Instruct
Meta
Meta’s AI research publishes the Llama family, among the most downloaded open-weight models. Founded 2013 (FAIR), based in Menlo Park. ai.meta.com
Questions
Who makes Llama 3.1 8B Instruct?
Llama 3.1 8B Instruct is made by Meta, founded 2013 (FAIR) and based in Menlo Park.
How much does Llama 3.1 8B Instruct cost?
$0.05 per million input tokens and $0.08 per million output tokens, at its provider’s list price.
What is Llama 3.1 8B Instruct’s context window?
128K tokens (131,072).
How does Llama 3.1 8B Instruct rank?
#329 of 351 on LMArena’s text leaderboard, rated 1187 (95% interval 1183–1191) from 49,605 votes, as of Oct 22, 2026.
Is Llama 3.1 8B Instruct open source?
Llama 3.1 8B Instruct has open weights under the Llama 3.1 Community license, downloadable from Hugging Face (meta-llama/Meta-Llama-3.1-8B-Instruct).