Llama 3.1-405B vs PaLM 2

Llama 3.1-405B (Meta AI) and PaLM 2 (Google) are both frontier AI models. Llama 3.1-405B was published in July 2024 and PaLM 2 in May 2023.

Llama 3.1-405B was trained on 3.8×10²⁵ FLOP, about 5.2x the compute of PaLM 2 at 7.3×10²⁴ FLOP. Training compute is the closest available proxy for how much was invested in a model, though it says nothing on its own about how well that compute was spent.

These two models share no benchmark on which both have been scored, so no direct performance comparison is possible here. The specification table below is a comparison of inputs, not of results.