Model comparison · text
Llama-3.1-405B-Instruct vs Kimi-K2-Instruct
Symmetrical, primary-source facts with unknown values left visible. No winner is assigned without comparable measurements.
FieldAt a glance
Meta · activeLlama-3.1-405B-InstructVerified Aug 28, 2026
Moonshot AI · activeKimi-K2-InstructVerified Aug 28, 2026
Technical differences
Side-by-side facts
| Field | Llama-3.1-405B-Instruct | Kimi-K2-Instruct |
|---|---|---|
| Developer | Meta | Moonshot AI |
| Family | Llama 3 1 405b Instruct | Kimi K2 Instruct |
| Model | Llama-3.1-405B-Instruct | Kimi-K2-Instruct |
| Version | Llama-3.1-405B-Instruct | Kimi-K2-Instruct |
| Lifecycle | active | active |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 131072 | 131072 |
| Total parameters | 405853388800 | 1026408235864 |
| Active parameters | Unknown | 32000000000 |
| License | llama3.1 | other |
| Open weights | Yes | Yes |
| API available | Unknown | Yes |
| Self-hostable | Yes | Yes |
| Capabilities | chat, generation, tools | chat, generation, tools |
13 comparable fields · 6 material differences · Pair passes the primary-source comparison gate
Primary benchmark evidence
Comparable performance
No protocol-matched benchmark yet.Results appear here only when both models share the same benchmark version, metric, evaluation protocol, and evidence class.
Llama-3.1-405B-Instruct capabilities
Input price—
Output price—
Serving providers0
Canonical IDmeta-llama/Llama-3.1-405B-Instruct
Kimi-K2-Instruct capabilities
Input price—
Output price—
Serving providers0
Canonical IDmoonshotai/Kimi-K2-Instruct
Internal comparison graph
Related comparisons
Primary evidence