Llama 3.1 405B Instruct vs Beam 1.0 501B A23B
Beam 1.0 501B A23B leads llmrun Score 119.5 to 83.5; neither fits 24 GB.
Run Beam 1.0 501B A23B in the cloud →
Model A · Meta
Llama 3.1 405B Instruct405.9B · Llama 3.1 Community · Jul 2024
Model B · reflection
Beam 1.0 501B A23B501.3B · 23.4B active · 1M context · Apache 2.0 · Oct 2026
Choose Beam 1.0 501B A23B if you want…
Higher llmrun Score
119.5 vs 83.5
Stronger at reasoning
118.8 vs 86.4
Also does reasoning, code
Llama 3.1 405B Instruct doesn't list it
More permissive license
Apache 2.0 vs Llama 3.1 Community
Newer release
Oct 2026 vs Jul 2024
Llama 3.1 405B Instruct: no clear edge over Beam 1.0 501B A23B in the data we have.
On your hardware
Each model at its default quant (Q4_K_M), a smaller one when it must. Estimates, ±20%.
8 GB
RTX 4060 · 8 GB tier
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
12 GB
RTX 3060 12GB · 12 GB tier
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
16 GB
RTX 5060 Ti 16GB · 16 GB tier
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
24 GBreference
RTX 4090 · 24 GB tier
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
32 GB
RTX 5090 · 32 GB tier
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
48 GB
RTX A6000 · 48 GB tier
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
Mac 32 GB
Mac Mini M4 · Macs
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
Mac 64 GB
Mac Studio M4 Max · Macs
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
Mac 128 GB
Mac Studio M4 Max · Macs
Llama 3.1 405B Instruct
Doesn't fit
smallest quant needs 197.4 GB
Beam 1.0 501B A23B
Doesn't fit
smallest quant needs 141.1 GB
Reference GPU: RTX 4090. Tinted cell = the better pick on that machine (fits, more headroom, or at least 10% faster).
Overall
Llama 3.1 405B Instruct
Beam 1.0 501B A23B
Agents
Llama 3.1 405B Instruct
no data
Beam 1.0 501B A23B
Science
Llama 3.1 405B Instruct
Beam 1.0 501B A23B
no data
Reasoning
Llama 3.1 405B Instruct
Beam 1.0 501B A23B
Llama 3.1 405B Instruct · #82 of 106 open models · #78 of 102 that fit ≤512 GB
Beam 1.0 501B A23B · #17 of 106 open models · #14 of 102 that fit ≤512 GB
24 more boards (other shared and single-model boards)
Llama 3.1 405B Instruct
1335.5#87/188 open
ArenaLMArena · Oct 2026
Beam 1.0 501B A23B
1435.7#23/188 open
ArenaLMArena · Oct 2026
Only Llama 3.1 405B Instruct (11)
- GPQA Diamond50.9%
- AIME 2024/20259.7%
- MMLU-Pro73.3%
- SimpleBench23.0%
- MATH Level 549.8%
- MMLU84.5%
- WeirdML21.4%
- CritPt0.0%
- DTBench61.4%
- ForecastBench62.6
- WinoGrande82.2%
Only Beam 1.0 501B A23B (12)
VRAM by quantization
Memory to load the model and 2K context; below it, the total at 32K and 128K context. Lighter side in bold.
Q2_K
Llama 3.1 405B Instruct
190 GB151.2 GB file
32K 206 GB · 128K 259 GB
Beam 1.0 501B A23B
214 GB190.7 GB file
32K 219 GB · 128K 237 GB
Q3_K_S
Llama 3.1 405B Instruct
195 GB177.1 GB file
32K 212 GB · 128K 265 GB
Beam 1.0 501B A23B
220 GB225.9 GB file
32K 225 GB · 128K 243 GB
Q3_K_M
Llama 3.1 405B Instruct
218 GB~197.8 GB file
32K 234 GB · 128K 287 GB
Beam 1.0 501B A23B
245 GB236.6 GB file
32K 250 GB · 128K 268 GB
Q4_0
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
251 GB284.2 GB file
32K 257 GB · 128K 274 GB
Q4_K_M
Llama 3.1 405B Instruct
268 GB~243.5 GB file
32K 284 GB · 128K 337 GB
Beam 1.0 501B A23B
301 GB314.5 GB file
32K 307 GB · 128K 324 GB
Q5_K_M
Llama 3.1 405B Instruct
318 GB~289.2 GB file
32K 335 GB · 128K 387 GB
Beam 1.0 501B A23B
358 GB380.8 GB file
32K 363 GB · 128K 381 GB
Q6_K
Llama 3.1 405B Instruct
368 GB~334.8 GB file
32K 385 GB · 128K 438 GB
Beam 1.0 501B A23B
414 GB441.8 GB file
32K 420 GB · 128K 437 GB
Q8_0
Llama 3.1 405B Instruct
446 GB~405.9 GB file
32K 463 GB · 128K 516 GB
Beam 1.0 501B A23B
502 GB532.8 GB file
32K 507 GB · 128K 525 GB
14 more quants
IQ2_XXS
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
139 GB145.3 GB file
32K 144 GB · 128K 161 GB
IQ2_XS
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
151 GB151.7 GB file
32K 156 GB · 128K 174 GB
IQ2_S
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
157 GB161.3 GB file
32K 163 GB · 128K 180 GB
IQ2_M
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
170 GB178.5 GB file
32K 175 GB · 128K 193 GB
IQ3_XXS
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
195 GB211.1 GB file
32K 200 GB · 128K 218 GB
IQ3_XS
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
207 GB224.5 GB file
32K 213 GB · 128K 230 GB
IQ3_M
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
226 GB255.7 GB file
32K 232 GB · 128K 249 GB
Q3_K_L
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
258 GB249.5 GB file
32K 263 GB · 128K 280 GB
IQ4_XS
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
270 GB273.1 GB file
32K 276 GB · 128K 293 GB
IQ4_NL
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
283 GB311.9 GB file
32K 288 GB · 128K 306 GB
Q4_1
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
283 GB314.1 GB file
32K 288 GB · 128K 306 GB
Q4_K_S
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
283 GB293.4 GB file
32K 288 GB · 128K 306 GB
Q5_K_S
Llama 3.1 405B Instruct
not listed
Beam 1.0 501B A23B
345 GB355.1 GB file
32K 351 GB · 128K 368 GB
BF16
Llama 3.1 405B Instruct
893 GB~811.7 GB file
32K 909 GB · 128K 962 GB
Beam 1.0 501B A23B
1003 GB1002.7 GB file
32K 1009 GB · 128K 1026 GB
Llama 3.1 405B Instruct
Ollama · Q4_K_M
ollama run hf.co/MaziyarPanahi/Meta-Llama-3.1-405B-Instruct-GGUFBeam 1.0 501B A23B
Ollama · Q4_K_M
ollama run hf.co/bartowski/Beam-1.0-501B-A23B-GGUF:Q4_K_M| Spec | Llama 3.1 405B Instruct | Beam 1.0 501B A23B |
|---|---|---|
| Publisher | Meta | reflection |
| Parameters | 405.9B | 501.3B |
| Active parameters | — | 23B per token |
| Architecture | — | BeamForCausalLM |
| Context | — | 1M tokens |
| Modalities | Chat, Function-calling | Chat, Reasoning, Code, Function-calling |
| License | Llama 3.1 Community | Apache 2.0 |
| Released | Jul 2024 | Oct 2026 |
Frequently Asked Questions
Which is better, Llama 3.1 405B Instruct or Beam 1.0 501B A23B?
Beam 1.0 501B A23B leads llmrun Score 119.5 to 83.5; neither fits 24 GB. Choose Beam 1.0 501B A23B for higher llmrun Score and stronger at reasoning.
Which needs less VRAM, Llama 3.1 405B Instruct or Beam 1.0 501B A23B?
At Q4_K_M, Llama 3.1 405B Instruct requires 267.9 GB while Beam 1.0 501B A23B needs 301.4 GB, making Llama 3.1 405B Instruct the easier model to run on your local setup.
Can I run Llama 3.1 405B Instruct or Beam 1.0 501B A23B on a 16 GB GPU?
Llama 3.1 405B Instruct does not fit (smallest quant needs 197.4 GB); Beam 1.0 501B A23B does not fit (smallest quant needs 141.1 GB).