Llama 3.1 405B
Meta open weights flagship
Function CallMCPJSON Modeopen-weights
Context
128,000 tokens
Max Output
8,192 tokens
Released
7/23/2024
Providers
3
Overview
Meta open weights flagship
Key Highlights
- Function Call
- MCP
- JSON Mode
Brand
Meta
Personal
Country: USA
View all models, pricing and details from Meta.
Specifications
Basic Information
| Model | Llama 3.1 405B |
| Brand | Meta |
| Version | 2024-07 |
| Model Type | open-weights |
| Status | stable |
| Released | 7/23/2024 |
| Popularity | 65 |
Architecture
| Parameter Size | Unknown / Not disclosed |
| Architecture Type | Unknown / Not disclosed |
| Attention Mechanism | Unknown / Not disclosed |
| Tokenizer | Unknown / Not disclosed |
| Vocabulary Size | Unknown / Not disclosed |
Context & I/O
| Context | 128,000 tokens |
| Max Output | 8,192 tokens |
| Modalities | Function Call, MCP, JSON Mode |
| Languages | Unknown / Not disclosed |
Capabilities
| Vision | No |
| Audio | No |
| Reasoning | No |
| Function Call | Yes |
| MCP | Yes |
| JSON Mode | Yes |
| Embedding | No |
Training Data
| Training Dataset | Unknown / Not disclosed |
| Estimated Data Size | Unknown / Not disclosed |
| Knowledge Cutoff | Unknown / Not disclosed |
Inference & Deployment
| API Access | Yes |
| VRAM Estimate | Unknown / Not disclosed |
| Quantization Support | Unknown / Not disclosed |
| Hardware Requirements | Unknown / Not disclosed |
Safety & Compliance
| Safety Evaluations | Unknown / Not disclosed |
| Content Policy | Unknown / Not disclosed |
| Region Restrictions | Unknown / Not disclosed |
License & Pricing
| License | Unknown / Not disclosed |
| Commercial Use | Unknown / Not disclosed |
| Open Source | No |
Provider & Pricing
| Provider | Input | Output | Cache | Batch | Website |
|---|---|---|---|---|---|
| Together AI | $0.800/1M | $2.400/1M | $0.200/1M | $0.400/1M | Visit Website |
Price Changes
No recorded price changes.
Benchmarks
No benchmark data available.
Changelog
- Page created / data imported9/12/2026
- Last updated9/12/2026
Frequently Asked Questions
What is Llama 3.1 405B?
Meta open weights flagship
Who developed Llama 3.1 405B?
Llama 3.1 405B was developed by Meta. You can learn more on the brand page or official website.
What is the context length of Llama 3.1 405B?
Llama 3.1 405B supports up to 128,000 tokens of context.
How much does Llama 3.1 405B API cost?
API pricing for Llama 3.1 405B starts at $0.800/1M per 1M input tokens and $2.400/1M per 1M output tokens. See the pricing table above for provider-specific rates.