Comprehensive side-by-side LLM comparison
Both models show comparable benchmark performance. Kimi-k1.5 supports multimodal inputs. Llama 3.1 405B Instruct is available on 8 providers. Both models have their strengths depending on your specific coding needs.
Moonshot AI
Kimi K1.5 was developed by Moonshot AI as an advanced language model with extended context capabilities, designed to handle long documents and conversations. Built to excel at tasks requiring comprehension of extensive information, it represents Moonshot's approach to long-context language understanding.
Meta
Llama 3.1 405B was developed as Meta's largest open-source language model, designed to provide frontier-level capabilities with 405 billion parameters. Built to demonstrate that open-source models can match proprietary systems in capability, it enables researchers and developers to experiment with and deploy a powerful foundation model without licensing restrictions.
6 months newer

Llama 3.1 405B Instruct
Meta
2024-07-23

Kimi-k1.5
Moonshot AI
2025-01-20
Context window and performance specifications
Average performance across 2 common benchmarks

Kimi-k1.5

Llama 3.1 405B Instruct
Available providers and their performance metrics

Kimi-k1.5

Llama 3.1 405B Instruct
Bedrock

Kimi-k1.5

Llama 3.1 405B Instruct

Kimi-k1.5

Llama 3.1 405B Instruct
DeepInfra
Fireworks
Hyperbolic
Lambda
Replicate
Together