Llama-3.1-Swallow-8B-Instruct-v0.5

llama3.38B

Llama 3.1 Swallow is a series of large language models (8B, 70B) that were built by continual pre-training on the Meta Llama 3.1 models. Llama 3.1 Swallow enhanced the Japanese language capabilities of the original Llama 3.1 while retaining the English language capabilities.

Context
131K

Capabilities

Reasoning & Interaction
Tool Calling
Infrastructure
Streaming
Fine-tuning

Details

Model IDtokyotech-llm/Llama-3.1-Swallow-8B-Instruct-v0.5
Creator tokyotech-llm
FamilyLlama-3.1
Licensellama3.3
Status—
Typechat
Input modalitiestext
Output modalitiestext
Open weightYes
Parameters8B
Architecturetransformer
Context window131K tokens
Max input—
Max output—
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Family Comparison: Llama-3.1

ModelContextMax out
Llama-3.1-8B-Instruct131K—
Llama-3.1-70B-Instruct131K131K
Llama-3.1-8B-Instruct131K131K
Meta-Llama-3.1-8B-Instruct-abliterated131K—
Meta-Llama-3.1-70B-Instruct131K—
Meta-Llama-3.1-8B-Instruct131K—
Llama-3.1-8B-Instruct-FP8131K—
Llama-3.1-Nemotron-70B-Instruct-HF131K—
Llama-3.1-Swallow-8B-Instruct-v0.5131K—
Llama-3.1-8B-Instruct131K—
Meta-Llama-3.1-8B-Instruct131K—

API

GET/v1/models/huggingface/tokyotech-llm/Llama-3.1-Swallow-8B-Instruct-v0.5

Llama-3.1-Swallow-8B-Instruct-v0.5

tokyotech-llm/Llama-3.1-Swallow-8B-Instruct-v0.5

Llama 3.1 Swallow is a series of large language models (8B, 70B) that were built by continual pre-training on the Meta Llama 3.1 models. Llama 3.1 Swallow enhanced the Japanese language capabilities of the original Llama 3.1 while retaining the English language capabilities.

Changes · 4 entries
tokyotech-llm/Llama-3.1-Swallow-8B-Instruct-v0.5update1cd659eMar 24, 2026, 04:19 AM
capabilitiesfine tuningyes
tokyotech-llm/Llama-3.1-Swallow-8B-Instruct-v0.5updateb301ebeMar 23, 2026, 11:47 PM
modalitiesinput["text"]output["text"]
tokyotech-llm/Llama-3.1-Swallow-8B-Instruct-v0.5update2b100acMar 23, 2026, 05:30 AM
capabilitiestool callyes
familyLlama-3.1
model_typechat
parameters8
page_urlhttps://huggingface.co/tokyotech-llm/Llama-3.1-Swallow-8B...
descriptionLlama 3.1 Swallow is a series of large language models (8...
release_date2025-06-12
context_window131072
licensellama3.3
taglineLlama 3.1 Swallow is a series of large language models (8...
architecturetransformer
open_weightyes
tools["function_calling"]
tokyotech-llm/Llama-3.1-Swallow-8B-Instruct-v0.5create7f5c66fMar 21, 2026, 05:16 AM