llmrun

DeepSeek V3.1 vs GLM 5.3 Flash

GLM 5.3 Flash leads llmrun Score 124.1 to 100.2; neither fits 24 GB.

Run GLM 5.3 Flash in the cloud →

684.5B · 40.1B active · 160K context · MIT · Aug 2025

ChatFunctions

321.3B · 18.3B active · 1M context · MIT · Aug 2026

VisionFunctions

Which should you choose?

Choose DeepSeek V3.1 if you want…

  • Also does chat

    GLM 5.3 Flash doesn't list it

Choose GLM 5.3 Flash if you want…

  • Higher llmrun Score

    124.1 vs 100.2

  • Stronger at reasoning

    127.4 vs 106.3

  • Lighter on memory

    194.6 vs 414.6 GB at Q4_K_M

  • Longer context window

    1M vs 160K tokens

  • Also does vision

    DeepSeek V3.1 doesn't list it

  • Newer release

    Aug 2026 vs Aug 2025

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

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

12 GB

RTX 3060 12GB · 12 GB tier

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

16 GB

RTX 5060 Ti 16GB · 16 GB tier

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

24 GBreference

RTX 4090 · 24 GB tier

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

32 GB

RTX 5090 · 32 GB tier

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

48 GB

RTX A6000 · 48 GB tier

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

Mac 32 GB

Mac Mini M4 · Macs

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

Mac 64 GB

Mac Studio M4 Max · Macs

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

Doesn't fit

smallest quant needs 100.7 GB

Mac 128 GB

Mac Studio M4 Max · Macs

DeepSeek V3.1

Doesn't fit

smallest quant needs 189.7 GB

GLM 5.3 Flash

IQ2_S · ~41 tok/s

112.8 GB · up to 16Kfits

Reference GPU: RTX 4090. Tinted cell = the better pick on that machine (fits, more headroom, or at least 10% faster).

llmrun Score

with its 90% range · bars share one scale

Overall

DeepSeek V3.1

100.295–105

GLM 5.3 Flash

124.1122–126

Coding

DeepSeek V3.1

no data

GLM 5.3 Flash

116.9112–122

Agents

DeepSeek V3.1

no data

GLM 5.3 Flash

127.4123–132

Math

DeepSeek V3.1

no data

GLM 5.3 Flash

121.4118–125

Science

DeepSeek V3.1

no data

GLM 5.3 Flash

123.5111–136

Reasoning

DeepSeek V3.1

106.399–114

GLM 5.3 Flash

127.4124–131

DeepSeek V3.1 · #56 of 106 open models · #52 of 102 that fit ≤512 GB

GLM 5.3 Flash · #12 of 106 open models · #6 of 89 that fit ≤256 GB

Benchmarks

The two models share no benchmark board.

38 more boards (other shared and single-model boards)

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

DeepSeek V3.1

295 GB237.8 GB file

32K 294 GB · 128K 300 GB

GLM 5.3 Flash

138 GB114.2 GB file

32K 161 GB · 128K 234 GB

Q3_K_S

DeepSeek V3.1

303 GB293.4 GB file

32K 302 GB · 128K 309 GB

GLM 5.3 Flash

not listed

Q3_K_M

DeepSeek V3.1

338 GB307.9 GB file

32K 336 GB · 128K 343 GB

GLM 5.3 Flash

158 GB149.1 GB file

32K 181 GB · 128K 254 GB

Q4_0

DeepSeek V3.1

346 GB386.4 GB file

32K 345 GB · 128K 352 GB

GLM 5.3 Flash

not listed

Q4_K_M

DeepSeek V3.1

415 GB409.2 GB file

32K 413 GB · 128K 420 GB

GLM 5.3 Flash

195 GB188.7 GB file

32K 217 GB · 128K 290 GB

Q5_K_M

DeepSeek V3.1

492 GB478.3 GB file

32K 490 GB · 128K 497 GB

GLM 5.3 Flash

231 GB244.7 GB file

32K 253 GB · 128K 326 GB

Q6_K

DeepSeek V3.1

569 GB552.4 GB file

32K 567 GB · 128K 574 GB

GLM 5.3 Flash

267 GB~265.1 GB file

32K 290 GB · 128K 362 GB

Q8_0

DeepSeek V3.1

688 GB713.3 GB file

32K 687 GB · 128K 694 GB

GLM 5.3 Flash

323 GB341.0 GB file

32K 346 GB · 128K 418 GB

15 more quants

IQ2_XXS

DeepSeek V3.1

192 GB164.1 GB file

32K 191 GB · 128K 198 GB

GLM 5.3 Flash

90.2 GB101.8 GB file

32K 113 GB · 128K 185 GB

IQ2_XS

DeepSeek V3.1

209 GB188.4 GB file

32K 208 GB · 128K 215 GB

GLM 5.3 Flash

98.2 GB92.1 GB file

32K 121 GB · 128K 193 GB

IQ2_S

DeepSeek V3.1

218 GB189.6 GB file

32K 217 GB · 128K 223 GB

GLM 5.3 Flash

102 GB113.6 GB file

32K 125 GB · 128K 197 GB

IQ2_M

DeepSeek V3.1

235 GB215.0 GB file

32K 234 GB · 128K 241 GB

GLM 5.3 Flash

not listed

IQ3_XXS

DeepSeek V3.1

269 GB267.6 GB file

32K 268 GB · 128K 275 GB

GLM 5.3 Flash

126 GB120.4 GB file

32K 149 GB · 128K 221 GB

IQ3_XS

DeepSeek V3.1

286 GB277.1 GB file

32K 285 GB · 128K 292 GB

GLM 5.3 Flash

not listed

IQ3_S

DeepSeek V3.1

not listed

GLM 5.3 Flash

138 GB149.6 GB file

32K 161 GB · 128K 234 GB

IQ3_M

DeepSeek V3.1

312 GB307.9 GB file

32K 311 GB · 128K 318 GB

GLM 5.3 Flash

146 GB150.7 GB file

32K 169 GB · 128K 242 GB

Q3_K_L

DeepSeek V3.1

355 GB319.7 GB file

32K 353 GB · 128K 360 GB

GLM 5.3 Flash

not listed

IQ4_XS

DeepSeek V3.1

372 GB360.0 GB file

32K 371 GB · 128K 377 GB

GLM 5.3 Flash

175 GB156.8 GB file

32K 197 GB · 128K 270 GB

IQ4_NL

DeepSeek V3.1

389 GB380.5 GB file

32K 388 GB · 128K 395 GB

GLM 5.3 Flash

not listed

Q4_1

DeepSeek V3.1

389 GB421.0 GB file

32K 388 GB · 128K 395 GB

GLM 5.3 Flash

not listed

Q4_K_S

DeepSeek V3.1

389 GB394.2 GB file

32K 388 GB · 128K 395 GB

GLM 5.3 Flash

not listed

Q5_K_S

DeepSeek V3.1

475 GB462.6 GB file

32K 473 GB · 128K 480 GB

GLM 5.3 Flash

not listed

BF16

DeepSeek V3.1

1373 GB1342.3 GB file

32K 1372 GB · 128K 1379 GB

GLM 5.3 Flash

644 GB641.6 GB file

32K 667 GB · 128K 740 GB

How to run each

Specifications

Specifications of DeepSeek V3.1 and GLM 5.3 Flash
SpecDeepSeek V3.1GLM 5.3 Flash
PublisherDeepSeekZ.ai
Parameters684.5B321.3B
Active parameters40B per token18B per token
ArchitectureDeepseekV3ForCausalLMGlm5NextForConditionalGeneration
Context160K tokens1M tokens
ModalitiesChat, Function-callingVision, Function-calling
LicenseMITMIT
ReleasedAug 2025Aug 2026

Frequently Asked Questions

Which is better, DeepSeek V3.1 or GLM 5.3 Flash?

GLM 5.3 Flash leads llmrun Score 124.1 to 100.2; neither fits 24 GB. Choose DeepSeek V3.1 for also does chat; choose GLM 5.3 Flash for higher llmrun Score and stronger at reasoning.

Which needs less VRAM, DeepSeek V3.1 or GLM 5.3 Flash?

At Q4_K_M, DeepSeek V3.1 requires 414.6 GB while GLM 5.3 Flash needs 194.6 GB, making GLM 5.3 Flash the easier model to run on your local setup.

Can I run DeepSeek V3.1 or GLM 5.3 Flash on a 16 GB GPU?

DeepSeek V3.1 does not fit (smallest quant needs 189.7 GB); GLM 5.3 Flash does not fit (smallest quant needs 100.7 GB).

Which has a longer context window, DeepSeek V3.1 or GLM 5.3 Flash?

DeepSeek V3.1 supports 163,840 tokens and GLM 5.3 Flash supports 1,048,576 tokens.

DeepSeek V3.1 vs GLM 5.3 Flash — VRAM & GPU Comparison | llmrun