Mistral Medium 3.5 128B vs GLM 4.5 Air

Mistral Medium 3.5 128B leads llmrun Score 102.1 to 98.6 (ranges overlap); neither fits 24 GB.

Run Mistral Medium 3.5 128B in the cloud →

Model A · Mistral AI

Mistral Medium 3.5 128B

102.1llmrun Score

127.7B · 256K context · Other · Mar 2026

ChatFunctions

Model B · Z.ai

GLM 4.5 Air

98.6llmrun Score

110.5B · 15B active · 128K context · MIT · Jul 2025

ChatFunctions

Which should you choose?

Choose Mistral Medium 3.5 128B if you want…

Higher llmrun Score
102.1 vs 98.6, ranges overlap
Longer context window
256K vs 128K tokens
Newer release
Mar 2026 vs Jul 2025

Choose GLM 4.5 Air if you want…

Fits a 48 GB GPU
IQ3_XS · 46.9 GB; Mistral Medium 3.5 128B needs 41.3 GB at its smallest quant
More permissive license
MIT vs Other

On your hardware

Each model at its default quant (Q4_K_M), a smaller one when it must. Estimates, ±20%.

MemoryMistral Medium 3.5 128BGLM 4.5 Air

8 GB

RTX 4060 · 8 GB tier

Mistral Medium 3.5 128B

Doesn't fit

smallest quant needs 41.3 GB

GLM 4.5 Air

Doesn't fit

smallest quant needs 31.7 GB

12 GB

RTX 3060 12GB · 12 GB tier

Mistral Medium 3.5 128B

Doesn't fit

smallest quant needs 41.3 GB

GLM 4.5 Air

Doesn't fit

smallest quant needs 31.7 GB

16 GB

RTX 5060 Ti 16GB · 16 GB tier

Mistral Medium 3.5 128B

Doesn't fit

smallest quant needs 41.3 GB

GLM 4.5 Air

Doesn't fit

smallest quant needs 31.7 GB

24 GBreference

RTX 4090 · 24 GB tier

Mistral Medium 3.5 128B

Doesn't fit

smallest quant needs 41.3 GB

GLM 4.5 Air

Doesn't fit

smallest quant needs 31.7 GB

32 GB

RTX 5090 · 32 GB tier

Mistral Medium 3.5 128B

Doesn't fit

smallest quant needs 41.3 GB

GLM 4.5 Air

IQ2_XXS · ~164 tok/s

31.7 GB · up to 16Kfits

48 GB

RTX A6000 · 48 GB tier

Mistral Medium 3.5 128B

IQ2_S · ~12 tok/s

46.1 GB · up to 16K

GLM 4.5 Air

IQ3_XS · ~67 tok/s

46.9 GB · up to 32Kbetter quant

Mac 32 GB

Mac Mini M4 · Macs

Mistral Medium 3.5 128B

Doesn't fit

smallest quant needs 41.3 GB

GLM 4.5 Air

Doesn't fit

smallest quant needs 31.7 GB

Mac 64 GB

Mac Studio M4 Max · Macs

Mistral Medium 3.5 128B

IQ3_S · ~7 tok/s

60.5 GB · up to 16K

GLM 4.5 Air

Q3_K_L · ~34 tok/s

57.9 GB · up to 32K

Mac 128 GB

Mac Studio M4 Max · Macs

Mistral Medium 3.5 128B

Q4_K_M · ~5 tok/s

82.8 GB · up to 128K

GLM 4.5 Air

Q4_K_M · ~30 tok/s

67.6 GB · up to 128Kfaster

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

Mistral Medium 3.5 128B GLM 4.5 Air

Overall

Mistral Medium 3.5 128B

102.197–107

GLM 4.5 Air

98.687–110

Coding

Mistral Medium 3.5 128B

102.296–108

GLM 4.5 Air

no data

Science

Mistral Medium 3.5 128B

101.380–123

GLM 4.5 Air

no data

Reasoning

Mistral Medium 3.5 128B

101.593–110

GLM 4.5 Air

no data

Mistral Medium 3.5 128B · #53 of 106 open models · #20 of 62 that fit ≤96 GB

GLM 4.5 Air · #61 of 106 open models · #24 of 62 that fit ≤96 GB

Benchmarks

The two models share no benchmark board.

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

LMArena Text

Mistral Medium 3.5 128B

1426.4#28/188 open

ArenaLMArena · Oct 2026

GLM 4.5 Air

1373.0#64/188 open

ArenaLMArena · Oct 2026

Only Mistral Medium 3.5 128B (10)

Only GLM 4.5 Air (4)

VRAM by quantization

Memory to load the model and 2K context; below it, the total at 32K and 128K context. Lighter side in bold.

QuantMistral Medium 3.5 128BGLM 4.5 Air

Q2_K

Mistral Medium 3.5 128B

55.3 GB46.6 GB file

32K 66.4 GB · 128K 102 GB

GLM 4.5 Air

47.4 GB45.3 GB file

32K 49.3 GB · 128K 55.5 GB

Q3_K_S

Mistral Medium 3.5 128B

56.9 GB54.4 GB file

32K 68.0 GB · 128K 103 GB

GLM 4.5 Air

48.8 GB52.7 GB file

32K 50.7 GB · 128K 56.9 GB

Q3_K_M

Mistral Medium 3.5 128B

63.3 GB60.6 GB file

32K 74.4 GB · 128K 110 GB

GLM 4.5 Air

54.3 GB57.2 GB file

32K 56.2 GB · 128K 62.4 GB

Q4_0

Mistral Medium 3.5 128B

64.9 GB71.0 GB file

32K 76.0 GB · 128K 111 GB

GLM 4.5 Air

55.7 GB62.8 GB file

32K 57.6 GB · 128K 63.8 GB

Q4_K_M

Mistral Medium 3.5 128B

77.7 GB74.9 GB file

32K 88.7 GB · 128K 124 GB

GLM 4.5 Air

66.7 GB73.0 GB file

32K 68.6 GB · 128K 74.8 GB

Q5_K_M

Mistral Medium 3.5 128B

92.0 GB88.3 GB file

32K 103 GB · 128K 139 GB

GLM 4.5 Air

79.1 GB83.5 GB file

32K 81.1 GB · 128K 87.2 GB

Q6_K

Mistral Medium 3.5 128B

106 GB102.6 GB file

32K 117 GB · 128K 153 GB

GLM 4.5 Air

91.6 GB99.0 GB file

32K 93.5 GB · 128K 99.7 GB

Q8_0

Mistral Medium 3.5 128B

129 GB132.9 GB file

32K 140 GB · 128K 175 GB

GLM 4.5 Air

111 GB117.5 GB file

32K 113 GB · 128K 119 GB

18 more quants

IQ2_XXS

Mistral Medium 3.5 128B

36.2 GB34.9 GB file

32K 47.2 GB · 128K 82.7 GB

GLM 4.5 Air

30.8 GB42.7 GB file

32K 32.7 GB · 128K 38.9 GB

IQ2_XS

Mistral Medium 3.5 128B

39.4 GB43.4 GB file

32K 50.4 GB · 128K 85.9 GB

GLM 4.5 Air

33.6 GB42.2 GB file

32K 35.5 GB · 128K 41.7 GB

IQ2_S

Mistral Medium 3.5 128B

41.0 GB46.1 GB file

32K 52.0 GB · 128K 87.5 GB

GLM 4.5 Air

35.0 GB42.5 GB file

32K 36.9 GB · 128K 43.1 GB

IQ2_M

Mistral Medium 3.5 128B

44.1 GB44.1 GB file

32K 55.2 GB · 128K 90.7 GB

GLM 4.5 Air

37.7 GB44.4 GB file

32K 39.6 GB · 128K 45.8 GB

IQ3_XXS

Mistral Medium 3.5 128B

50.5 GB49.3 GB file

32K 61.6 GB · 128K 97.0 GB

GLM 4.5 Air

43.2 GB51.4 GB file

32K 45.2 GB · 128K 51.3 GB

Q2_K_S

Mistral Medium 3.5 128B

52.1 GB43.0 GB file

32K 63.2 GB · 128K 98.6 GB

GLM 4.5 Air

not listed

IQ3_XS

Mistral Medium 3.5 128B

53.7 GB54.9 GB file

32K 64.8 GB · 128K 100 GB

GLM 4.5 Air

46.0 GB50.8 GB file

32K 47.9 GB · 128K 54.1 GB

IQ3_S

Mistral Medium 3.5 128B

55.3 GB54.5 GB file

32K 66.4 GB · 128K 102 GB

GLM 4.5 Air

not listed

IQ3_M

Mistral Medium 3.5 128B

58.5 GB59.5 GB file

32K 69.6 GB · 128K 105 GB

GLM 4.5 Air

50.1 GB55.5 GB file

32K 52.1 GB · 128K 58.2 GB

Q3_K_L

Mistral Medium 3.5 128B

66.5 GB67.0 GB file

32K 77.6 GB · 128K 113 GB

GLM 4.5 Air

57.0 GB55.9 GB file

32K 59.0 GB · 128K 65.1 GB

IQ4_XS

Mistral Medium 3.5 128B

69.7 GB67.1 GB file

32K 80.8 GB · 128K 116 GB

GLM 4.5 Air

59.8 GB60.5 GB file

32K 61.7 GB · 128K 67.9 GB

IQ4_NL

Mistral Medium 3.5 128B

72.9 GB70.9 GB file

32K 83.9 GB · 128K 119 GB

GLM 4.5 Air

62.6 GB62.7 GB file

32K 64.5 GB · 128K 70.7 GB

Q4_1

Mistral Medium 3.5 128B

72.9 GB78.5 GB file

32K 83.9 GB · 128K 119 GB

GLM 4.5 Air

62.6 GB69.4 GB file

32K 64.5 GB · 128K 70.7 GB

Q4_K_S

Mistral Medium 3.5 128B

72.9 GB71.2 GB file

32K 83.9 GB · 128K 119 GB

GLM 4.5 Air

62.6 GB67.0 GB file

32K 64.5 GB · 128K 70.7 GB

Q4_K_L

Mistral Medium 3.5 128B

79.3 GB79.6 GB file

32K 90.3 GB · 128K 126 GB

GLM 4.5 Air

not listed

Q5_K_S

Mistral Medium 3.5 128B

88.8 GB86.2 GB file

32K 99.9 GB · 128K 135 GB

GLM 4.5 Air

76.4 GB78.4 GB file

32K 78.3 GB · 128K 84.5 GB

Q5_K_L

Mistral Medium 3.5 128B

93.6 GB92.1 GB file

32K 105 GB · 128K 140 GB

GLM 4.5 Air

not listed

BF16

Mistral Medium 3.5 128B

256 GB250.1 GB file

32K 268 GB · 128K 303 GB

GLM 4.5 Air

221 GB221.0 GB file

32K 223 GB · 128K 229 GB

How to run each

Mistral Medium 3.5 128B

Ollama · Q4_K_M

$ollama run hf.co/unsloth/Mistral-Medium-3.5-128B-GGUF:Q4_K_M

All ways to run Mistral Medium 3.5 128B →

GLM 4.5 Air

Ollama · Q4_K_M

$ollama run hf.co/unsloth/GLM-4.5-Air-GGUF:Q4_K_M

All ways to run GLM 4.5 Air →

Specifications

Specifications of Mistral Medium 3.5 128B and GLM 4.5 Air
Spec	Mistral Medium 3.5 128B	GLM 4.5 Air
Publisher	Mistral AI	Z.ai
Parameters	127.7B	110.5B
Active parameters	—	15B per token
Architecture	Mistral3ForConditionalGeneration	Glm4MoeForCausalLM
Context	256K tokens	128K tokens
Modalities	Chat, Function-calling	Chat, Function-calling
License	Other	MIT
Released	Mar 2026	Jul 2025

Frequently Asked Questions

Which is better, Mistral Medium 3.5 128B or GLM 4.5 Air?

Mistral Medium 3.5 128B leads llmrun Score 102.1 to 98.6 (ranges overlap); neither fits 24 GB. Choose Mistral Medium 3.5 128B for higher llmrun Score and longer context window; choose GLM 4.5 Air for fits a 48 GB GPU and more permissive license.

Which needs less VRAM, Mistral Medium 3.5 128B or GLM 4.5 Air?

At Q4_K_M, Mistral Medium 3.5 128B requires 77.7 GB while GLM 4.5 Air needs 66.7 GB, making GLM 4.5 Air the easier model to run on your local setup.

Can I run Mistral Medium 3.5 128B or GLM 4.5 Air on a 16 GB GPU?

Mistral Medium 3.5 128B does not fit (smallest quant needs 41.3 GB); GLM 4.5 Air does not fit (smallest quant needs 31.7 GB).

Which has a longer context window, Mistral Medium 3.5 128B or GLM 4.5 Air?

Mistral Medium 3.5 128B supports 262,144 tokens and GLM 4.5 Air supports 131,072 tokens.