Llama 3.1 405B vs Pony Alpha

Compare Llama 3.1 405B by Meta AI against Pony Alpha by OpenRouter, context windows of 128K vs 200K, tested across 7 shared challenges. Updated April 2026.

Which is better, Llama 3.1 405B or Pony Alpha?

Llama 3.1 405B and Pony Alpha are both competitive models. Llama 3.1 405B costs $2.7/M input tokens vs $0/M for Pony Alpha. Context windows: 128K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between Llama 3.1 405B and Pony Alpha

Llama 3.1 405B is made by meta while Pony Alpha is from openrouter. Llama 3.1 405B has a 128K token context window compared to Pony Alpha's 200K. On pricing, Llama 3.1 405B costs $2.7/M input tokens vs $0/M for Pony Alpha.

Our Verdict
Llama 3.1 405B
Llama 3.1 405B
Pony Alpha
Pony Alpha

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call
Writing DNA

Style Comparison

Similarity
75%

Pony Alpha uses 589.0x more bold

Llama 3.1 405B
Pony Alpha
56%Vocabulary52%
15wSentence Length15w
0.41Hedging0.40
0.0Bold5.9
1.9Lists4.4
0.03Emoji0.00
0.00Headings0.71
0.16Transitions0.23
Based on 5 + 20 text responses
vs

Ask them anything yourself

Llama 3.1 405BPony Alpha

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
FAQ

Common questions