Llama 3.1 405B is cheaper than Mercury at $2.7/M vs $10/M input tokens.
| Spec | Llama 3.1 405B | Mercury |
|---|---|---|
| Input price | $2.7/M tokens | $10/M tokens |
| Output price | $3.1/M tokens | $10/M tokens |
| Context window | 128K tokens | 32K tokens |
| Parameters | 405B | Not disclosed |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Jul 2024 | Jun 2025 |
| HumanEval | 89.0% | 90.0% |
Not enough votes to call it. On the specs, Llama 3.1 405B has the edge: bigger model tier, bigger context window, major provider backing.
Llama 3.1 405B costs 3.2x less per token.
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Llama 3.1 405B is cheaper on both: 3.7× input, 3.2× output.
Mercury uses 405.9x more bold