Llama 3.1 405B vs Inception: Mercury 2
Compare Llama 3.1 405B by Meta AI against Inception: Mercury 2 by Inception, context windows of 128K vs 128K, tested across 12 shared challenges. Updated April 2026.
Which is better, Llama 3.1 405B or Inception: Mercury 2?
Llama 3.1 405B and Inception: Mercury 2 are both competitive models. Llama 3.1 405B costs $2.7/M input tokens vs $0.25/M for Inception: Mercury 2. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Llama 3.1 405B and Inception: Mercury 2
Llama 3.1 405B is made by meta while Inception: Mercury 2 is from inception. Llama 3.1 405B has a 128K token context window compared to Inception: Mercury 2's 128K. On pricing, Llama 3.1 405B costs $2.7/M input tokens vs $0.25/M for Inception: Mercury 2.
No community votes yet. On paper, Llama 3.1 405B has the edge — bigger model tier, major provider backing.
Inception: Mercury 2 is 4.1x cheaper per token — worth considering if cost matters.
Style Comparison
Inception: Mercury 2 uses 655.4x more bold
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
