LLM Reference

RakutenAI Models by Rakuten

RakutenLlama 3 CommunityOpen weights
4 models2023–2026Up to 4k ctx

Last refreshed 2026-05-19. Next refresh: weekly.

Details

ResearcherRakuten
Commercial useCommercial use: conditional
Models4
Released2023–2026
Max context4k

About

The RakutenAI family of large language models (LLMs) features advanced models primarily for Japanese language processing, with solid performance in English. The flagship model, RakutenAI-7B, is a 7-billion parameter model developed from the open-source Mistral-7B-v0.1, enhanced by training on a diverse dataset of Japanese and English texts. This training, executed on Rakuten's powerful GPU infrastructure, enables the model to excel in Japanese language tasks. The model's tokenizer is specifically optimized for Japanese characters, ensuring efficient processing. Alongside the foundation model, Rakuten offers instruction-tuned and chat-tuned versions, dubbed RakutenAI-7B-instruct and RakutenAI-7B-chat, for more task-specific applications. All models are open-source under the Apache 2.0 license and available on Hugging Face. However, users should be aware of potential biases and inaccuracies 11 10 12.

Decision facts

Best fit
multilingual
Capability starting point
RakutenAI 7B with 4k context
Lowest tracked input
Not tracked
Closest related family
Claude 3

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

4 in view

Use when the workload needs multilingual.

2026-03multilingual

Use when the workload needs 4k context and 7B parameters.

2023-124k context7B parameters

Use when the workload needs 4k context and 7B parameters.

2023-124k context7B parameters

Use when the workload needs 4k context and 7B parameters.

2023-124k context7B parameters

Release Timeline

2 release groups
2026-03
1 current
Rakuten AI 3.0
multilingual
Current
2023-12
3 current
RakutenAI 7B
4k context7B parameters
Current
RakutenAI 7B Chat
4k context7B parameters
Current
RakutenAI 7B Instruct
4k context7B parameters
Current

Specifications(4 models)

RakutenAI model specifications comparison
ModelReleasedContextParameters
Rakuten AI 3.02026-03
RakutenAI 7B2023-124k7B
RakutenAI 7B Instruct2023-124k7B
RakutenAI 7B Chat2023-124k7B

Available From(1 provider)