Jamba 1.5 Large vs Llama 3.1 405B
A side-by-side comparison of two Open LLM models - to help you pick the right one.
Jamba 1.5 Large
AI21 Labs
Jamba 1.5 Large is AI21 Labs' hybrid Mamba-Transformer open LLM with a 256k token context window, designed for text-based tasks. It is well-suited for applications requiring long-context understanding and generation. The model's open weights make it accessible for customization and research.
Llama 3.1 405B
Meta
Llama 3.1 405B is Meta's largest open-weight language model, designed to compete with leading closed frontier models across a variety of tasks. It supports text-based applications and offers a substantial context window of 128,000 tokens.
Spec comparison
| Jamba 1.5 Large | Llama 3.1 405B | |
|---|---|---|
| Provider | AI21 Labs | Meta |
| Category | Open LLM | Open LLM |
| Context window | 256K ctx | 128K ctx |
| Max output | - | - |
| Input price | $2 / 1M | - |
| Output price | $8 / 1M | - |
| License | Jamba Open Model License | Llama 3.1 Community License |
| Open weights | Yes | Yes |
| Modality | Text | Text |
Prices and specs are per provider documentation; verify current figures before relying on them.
Jamba 1.5 Large: what it's for
Jamba 1.5 Large is AI21 Labs' hybrid Mamba-Transformer open LLM with a 256k token context window, designed for text-based tasks. It is well-suited for applications requiring long-context understanding and generation. The model's open weights make it accessible for customization and research.
Llama 3.1 405B: what it's for
Llama 3.1 405B is Meta's largest open-weight language model, designed to compete with leading closed frontier models across a variety of tasks. It supports text-based applications and offers a substantial context window of 128,000 tokens.