Context Window
131,000
Tokens
Model Cost Profile
Meta: Llama 3.1 405B Instruct
Developer: meta-llama
Pricing updated Mar 11, 2026
Input rank: #316Output rank: #252
Live Pricing
Input: $4.00
Output: $4.00
Pricing via OpenRouter API · Last synced Mar 11, 2026 · MMLU score via public benchmark data
Meta: Llama 3.1 405B Instruct offers a substantial context window of 131,000 tokens, making it suitable for complex applications such as long-form content generation and detailed conversational agents. With an input and output pricing structure of $4.00 per million tokens, teams can effectively manage costs while leveraging advanced AI capabilities for diverse tasks. This model is ideal for organizations requiring extensive context handling and efficient budget allocation for high-volume API usage.
🔧 Tool Calling📋 Structured Output
Input Price / 1M
$4.00
Prompt tokens
Output Price / 1M
$4.00
Completion tokens
Intelligence (MMLU)
73.2
Massive Multitask Language Understanding
Benchmark Scores
Standardized evaluation scores for Meta: Llama 3.1 405B Instruct.
Side-by-Side Pricing Table
| Usage Type | Price / 1M Tokens |
|---|---|
| Input (Prompt) | $4.00 |
| Output (Completion) | $4.00 |
Price History
Meta: Llama 3.1 405B Instruct Pricing Trend
Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7 — Mar 11
Current Input / 1M
$4.00
Current Output / 1M
$4.00
Cost Calculator
Estimate monthly spend for Meta: Llama 3.1 405B Instruct based on your workload.
01.0B
0500M
Estimated Monthly Cost
$148
25M input + 12M output tokens
Cheaper Alternatives to Compare
Quick links for cost-down decisions before production rollout.
FAQ
Common pricing and benchmark questions for Meta: Llama 3.1 405B Instruct.
How much does Meta: Llama 3.1 405B Instruct cost per 1M input tokens?
Meta: Llama 3.1 405B Instruct input pricing is $4.00 per 1M tokens based on the latest synced provider data.
How much does Meta: Llama 3.1 405B Instruct cost per 1M output tokens?
Meta: Llama 3.1 405B Instruct output pricing is $4.00 per 1M tokens based on the latest synced provider data.
What context window does Meta: Llama 3.1 405B Instruct support?
Meta: Llama 3.1 405B Instruct supports a context window of 131,000 tokens.
How can I compare Meta: Llama 3.1 405B Instruct with cheaper alternatives?
Use the comparison links on this page to open direct model-vs-model pricing and benchmark pages, then evaluate monthly spend projections for your workload.