Model Comparison

Llama 3.1 405BClaude Opus 4.1
Let's see who can write code better - Llama 3.1 405B or Claude Opus 4.1

Model Information

Llama 3.1 405B

Description

Open-source frontier model with 405 billion parameters

Specifications

Context Window128K
Max Output4K
ReleasedJul 2024
API✗

Key Features

Open sourceSelf-hostableTool use supportMultilingualNo usage restrictions

Strengths

  • ✓Fully open source
  • ✓Can be self-hosted
  • ✓Strong performance
  • ✓No API costs if self-hosted

Weaknesses

  • ✗Requires significant compute
  • ✗Complex to deploy
  • ✗No official API service

Agent Support

No known agents

Claude Opus 4.1

Anthropic

Description

Most advanced Claude model with enhanced capabilities

Specifications

Context Window200K
Max Output8K
ReleasedFeb 2025
API✓

Pricing (per 1M)

In / Out
$15/ $75

Key Features

State-of-the-art reasoningAdvanced code generationComplex problem solvingMulti-language supportVision capabilities

Strengths

  • ✓Best-in-class performance
  • ✓Superior reasoning abilities
  • ✓Excellent at complex tasks
  • ✓Most advanced Claude model

Weaknesses

  • ✗Highest cost
  • ✗Slower response times
  • ✗Overkill for simple tasks

Agent Support