Llama 3.1 405B vs GPT-2

Compare Llama 3.1 405B by Meta AI against GPT-2 by OpenAI, context windows of 128K vs 1K, tested across 3 shared challenges. Updated March 2026.

Which is better, Llama 3.1 405B or GPT-2?

Llama 3.1 405B and GPT-2 are both competitive models. Context windows: 128K vs 1K tokens. Compare their real outputs side by side below.

Key Differences Between Llama 3.1 405B and GPT-2

Llama 3.1 405B is made by meta while GPT-2 is from openai. Llama 3.1 405B has a 128K token context window compared to GPT-2's 1K.

Our Verdict
Llama 3.1 405B
Llama 3.1 405B
GPT-2
GPT-2Runner-up

No community votes yet. On paper, Llama 3.1 405B has the edge — bigger model tier, newer, bigger context window.

Slight edge
FAQ

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