Gemini 1.5 Pro vs Llama 3.1 405B

Compare two of the most advanced AI models available today. Find out which one suits your needs better.

Quick Overview

Gemini 1.5 Pro

by Google DeepMind

Gemini 1.5 Pro features a breakthrough 2-million token context window, allowing it to process vast amounts of information, including long videos and massive codebases, in a single prompt.

Modalities

TextImageAudioVideo

Best For

Analyzing large documents, video content understanding, and complex research tasks requiring huge context.

Llama 3.1 405B

by Meta

Llama 3.1 405B is the first open-weights model to rival the top proprietary models like GPT-4o. It enables developers to run state-of-the-art AI on their own infrastructure.

Modalities

Text

Best For

Enterprises requiring data privacy, fine-tuning for specific domains, and research.

Performance Benchmarks

MMLU (Massive Multitask Language Understanding)

Gemini 1.5 Pro85.9%
Llama 3.1 405B88.6%

GPQA (Graduate-Level Google-Proof Q&A)

Gemini 1.5 Pro50%
Llama 3.1 405B52%

HumanEval (Code Generation)

Gemini 1.5 Pro84%
Llama 3.1 405B89%

Feature Comparison

FeatureGemini 1.5 ProLlama 3.1 405B
Context Window2,000k tokens128k tokens
Real-time Voice
Interactive Code Artifacts
Open Source
API Cost (Input)$3.5/1M tokens$0/1M tokens
API Cost (Output)$10.5/1M tokens$0/1M tokens

Strengths & Weaknesses

Gemini 1.5 Pro

Strengths

  • Massive 2M token context window
  • Native multimodal understanding (video/audio)
  • Deep integration with Google Workspace
  • Strong performance in long-context retrieval

Weaknesses

  • Can be slower than competitors for short queries
  • Overly cautious safety filters sometimes block benign requests

Llama 3.1 405B

Strengths

  • Open weights for private deployment
  • Comparable performance to GPT-4o
  • Huge ecosystem support
  • No API dependency (if self-hosted)

Weaknesses

  • Requires massive GPU memory to run
  • Text-only in base version (no native vision/audio)
  • Setup complexity for self-hosting

What Users Are Saying

Gemini 1.5 Pro Users

Users are amazed by its ability to recall information from massive documents and videos. However, some find its reasoning consistency slightly behind GPT-4o in short-context tasks.

Llama 3.1 405B Users

The open-source community celebrates Llama 3.1 405B as a milestone for democratizing AI. It's powerful but requires significant hardware resources to run locally.

Final Verdict

Gemini 1.5 Pro excels in multimodal understanding and massive context. Llama 3.1 405B is the choice for text-heavy, high-intelligence tasks where open weights and privacy are non-negotiable.