Llama 3.1 405B Review 2026 — LLM Analysis

Model Specifications

Model	Llama 3.1 405B
Company	Meta
Context Window	128K
Parameters	405B
Release Date	2024-07-23
Pricing	Via API providers
API Available	✓ Yes
Open Source	✓ Yes

Key Strengths

complex reasoningcodingmultilingual

Analysis for Operators

Llama 3.1 405B by Meta is a open-source language model with a 128K context window. Available via API for integration into your applications. Key strengths include complex reasoning, coding, multilingual, making it well-suited for operators building sophisticated AI applications.

Pricing at Via API providers makes it particularly accessible for startups and individual operators building at scale.

Best Use Cases for Operators

Operators should consider Llama 3.1 405B when building applications requiring complex reasoning, coding, multilingual. The 128K context window enables processing of entire documents and codebases without chunking.

Compare with Similar Models

Llama 3.1 70B Llama 3.1 8B

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Last updated: 2026-02-14 • Browse all LLMs

Llama 3.1 405B