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Llama 3.1 405B (base)

META-LLAMA Developer Architecture Profile

OpenRouter ↗HuggingFace ↗
Intelligence (ELO)1300Chatbot Arena Verified
Max Context32,768Tokens
API Cost / 1M$8.00Blended Prompt + Completion

Model Capabilities

  • Coding & Logic
  • Fictional
  • Conversational
Meta's latest class of model (Llama 3.1) launched with a variety of sizes & flavors. This is the base 405B pre-trained version. It has demonstrated strong performance compared to leading closed-source models in human evaluations. To read more about the model release, [click here](https://ai.meta.com/blog/meta-llama-3/). Usage of this model is subject to [Meta's Acceptable Use Policy](https://llama.meta.com/llama3/use-policy/).

Granular Pricing Matrix

Input Tokens (Prompt)$4.00 / 1M
Output Tokens (Completion)$4.00 / 1M

Pricing data via OpenRouter. Sync: 3/16/2026

Evaluate Competitors

VS Engine MatchupLlama 3.1 405B (base) vs Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)VS Engine MatchupLlama 3.1 405B (base) vs Google: Gemini 3.1 Pro Preview Custom ToolsVS Engine MatchupLlama 3.1 405B (base) vs OpenAI: GPT-5.2-CodexVS Engine MatchupLlama 3.1 405B (base) vs Google: Gemini 3 Flash PreviewVS Engine MatchupLlama 3.1 405B (base) vs OpenAI: GPT-5.2 ProVS Engine MatchupLlama 3.1 405B (base) vs OpenAI: GPT-5.2