Mistral Large 2 vs Llama 3.1 405B
Architecture Comparison
SpecMistral Large 2Llama 3.1 405B
TypeDENSEDENSE
Total Parameters123B405B
Active Parameters123B405B
Layers88126
Hidden Dimension12,28816,384
Attention Heads96128
KV Heads88
Context Length131,072131,072
Precision (default)BF16BF16
Memory Requirements
PrecisionMistral Large 2Llama 3.1 405B
BF16 Weights246.0 GB810.0 GB
FP8 Weights123.0 GB405.0 GB
INT4 Weights61.5 GB202.5 GB
KV-Cache / Token360448 B516096 B
Activation Estimate3.50 GB5.00 GB
Minimum GPUs Needed (BF16)
H100 SXM4 GPUsN/A
L40S7 GPUsN/A
Quality Benchmarks
BenchmarkMistral Large 2Llama 3.1 405B
Overall8288
MMLU84.088.6
HumanEval53.061.0
GSM8K91.296.8
MT-Bench84.088.0
Mistral Large 2
MMLU
84.0
HumanEval
53.0
GSM8K
91.2
MT-Bench
84.0
Llama 3.1 405B
MMLU
88.6
HumanEval
61.0
GSM8K
96.8
MT-Bench
88.0
Capabilities
FeatureMistral Large 2Llama 3.1 405B
Tool Use✓ Yes✓ Yes
Vision✗ No✗ No
Code✓ Yes✓ Yes
Math✓ Yes✓ Yes
Reasoning✗ No✗ No
Multilingual✓ Yes✓ Yes
Structured Output✓ Yes✓ Yes
API Pricing Comparison
Cheapest Output (Mistral Large 2)
$2.50/M
Input: $2.50/M
Cheapest Output (Llama 3.1 405B)
$3.00/M
Input: $3.00/M
| Provider | Mistral Large 2 In $/M | Out $/M | Llama 3.1 405B In $/M | Out $/M |
|---|---|---|---|---|
| together | $2.50 | $2.50 | $3.50 | $3.50 |
| fireworks | — | — | $3.00 | $3.00 |
| mistral | $2.00 | $6.00 | — | — |
Recommendation Summary
- ‣Llama 3.1 405B scores higher on overall quality (88 vs 82).
- ‣Mistral Large 2 is cheaper per output token ($2.50/M vs $3.00/M).
- ‣Mistral Large 2 has a smaller memory footprint (246.0 GB vs 810.0 GB BF16), making it easier to deploy on fewer GPUs.
- ‣Llama 3.1 405B is stronger at code generation (HumanEval: 61.0 vs 53.0).
- ‣Llama 3.1 405B is better at math reasoning (GSM8K: 96.8 vs 91.2).
Compare Other Models
Mistral Large 2 vs DeepSeek R1→Mistral Large 2 vs DeepSeek V3→Mistral Large 2 vs Gemma 3 27B→Mistral Large 2 vs Llama 3.1 70B→Mistral Large 2 vs Llama 3.1 8B→Mistral Large 2 vs Phi-4→Llama 3.1 405B vs DeepSeek R1→Llama 3.1 405B vs DeepSeek V3→Llama 3.1 405B vs Gemma 3 27B→Llama 3.1 405B vs Llama 3.1 70B→