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GLM 4.5 Air vs Mistral Medium 3.1

GLM 4.5 Air leads Mistral Medium 3.1 on the Artificial Analysis Intelligence Index, 11.1 to 9.2, and GLM 4.5 Air costs 1.8x less per output token ($1.10 vs $2.00 per million). Updated October 21, 2026; 46 benchmarks have a result for both.

Replace GLM 4.5 Air Replace Mistral Medium 3.1
GLM 4.5 AirZ.ai
Coding
No data
Overall
No data
Output $/M
$1.10
17
Mistral Medium 3.1Mistral AI
Coding
No data
Overall
No data
Output $/M
$2.00
29
vs boards won of 46 shared

GLM 4.5 Air or Mistral Medium 3.1: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick GLM 4.5 Air for output tokens 1.8x cheaper ($1.10 vs $2.00 per million) and work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.

Model AGLM 4.5 AirZ.aiNot benchmarkedNo coding benchmarkNo cost per solved taskModel BMistral Medium 3.1Mistral AINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
46
GLM 4.5 Air only
2
Mistral Medium 3.1 only
28
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
GLM 4.5 Air not benchmarked, Mistral Medium 3.1 not benchmarked.
Widest category
Math, 22.4 points apart on average over 4 shared benchmarks.
Widest single gap
AA Math Index: GLM 4.5 Air 80.7 against Mistral Medium 3.1 38.3, 42.4 points apart on a 0 to 100 scale.
Output price
GLM 4.5 Air $1.10 against Mistral Medium 3.1 $2.00 per million output tokens, 1.8x apart.
Context window
Both take 131K tokens.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryGLM 4.5 AirBarsMistral Medium 3.1Ties
Coding22
Intelligence10
Agentic work10
Reasoning23
Math22
Knowledge14
Web design70
General118
All shared boards1729
CodingLike-for-likeSix of these boards feed the Vibe Coding Index22
Coding benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
AA Coding IndexNot measured20.5Only Mistral Medium 3.1 measured
LiveCodeBench (Vals AI)Not measured44.8%Only Mistral Medium 3.1 measured
LiveCodeBench (Artificial Analysis run)68.4%40.6%GLM 4.5 Air
SciCodeNot measured32.4%Only Mistral Medium 3.1 measured
Terminal-Bench Hard (Artificial Analysis run)20.5%10.6%GLM 4.5 Air
GSO-Bench2.9%Not measuredOnly GLM 4.5 Air measured
ALE-BenchNot measured210.2Only Mistral Medium 3.1 measured
LMArena Text: coding13971433Mistral Medium 3.1
LMArena Text: software and IT14011436Mistral Medium 3.1
Neither model has a result on the other 30 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
AA Intelligence Index11.19.2GLM 4.5 Air
Neither model has a result on the other 1 board here
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
AA Agentic IndexNot measured1.9Only Mistral Medium 3.1 measured
τ²-Bench Telecom46.5%40.6%GLM 4.5 Air
Neither model has a result on the other 39 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index23
Reasoning benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
MMMU Pro (Vals AI)Not measured63.0%Only Mistral Medium 3.1 measured
GPQA Diamond (Artificial Analysis run)73.3%58.8%GLM 4.5 Air
Humanity's Last Exam (Artificial Analysis run)7.0%4.7%GLM 4.5 Air
LMArena Text: hard prompts13791426Mistral Medium 3.1
LMArena Text: expert13701408Mistral Medium 3.1
LMArena Text: hard prompts in English13881435Mistral Medium 3.1
LMArena Vision: diagramsNot measured1175Only Mistral Medium 3.1 measured
LMArena Vision: homeworkNot measured1165Only Mistral Medium 3.1 measured
Kagi LLM Benchmark43.0%Not measuredOnly GLM 4.5 Air measured
Neither model has a result on the other 13 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index22
Math benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
AIMENot measured42.3%Only Mistral Medium 3.1 measured
MATH 500 (Vals AI)Not measured87.0%Only Mistral Medium 3.1 measured
MGSM (Vals AI)Not measured90.9%Only Mistral Medium 3.1 measured
AA Math Index80.738.3GLM 4.5 Air
AIME 2025 (Artificial Analysis run)80.7%38.3%GLM 4.5 Air
LMArena Text: math13961408Mistral Medium 3.1
LMArena Text: mathematical work13961412Mistral Medium 3.1
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index14
Knowledge benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
MMLU ProNot measured75.3%Only Mistral Medium 3.1 measured
LegalBench (Vals AI)Not measured62.0%Only Mistral Medium 3.1 measured
CorpFin (Vals AI)Not measured50.7%Only Mistral Medium 3.1 measured
TaxEval (Vals AI)Not measured70.3%Only Mistral Medium 3.1 measured
MortgageTax (Vals AI)Not measured36.5%Only Mistral Medium 3.1 measured
MedQA (Vals AI)Not measured78.2%Only Mistral Medium 3.1 measured
MMLU Pro (Artificial Analysis run)81.5%68.3%GLM 4.5 Air
LMArena Text: science14071444Mistral Medium 3.1
LMArena Text: medicine and healthcare14021449Mistral Medium 3.1
LMArena Text: legal and government13821439Mistral Medium 3.1
LMArena Text: business and finance13711418Mistral Medium 3.1
Neither model has a result on the other 7 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index70
Web design benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
Design Arena: websites11461133GLM 4.5 Air
Design Arena: UI components11231100GLM 4.5 Air
Design Arena: game dev10941074GLM 4.5 Air
Design Arena: data viz11861144GLM 4.5 Air
Design Arena: 3D11231081GLM 4.5 Air
Design Arena: all code categories11371120GLM 4.5 Air
Design Arena: SVG1071993GLM 4.5 Air
Design Arena: ASCII artNot measured997Only Mistral Medium 3.1 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index118
General benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
IFBench37.6%39.8%Mistral Medium 3.1
Long context reasoning (AA-LCR)46.7%42.7%GLM 4.5 Air
DTBenchNot measured67.5%Only Mistral Medium 3.1 measured
LMCANot measured19.1%Only Mistral Medium 3.1 measured
LMArena Text13841424Mistral Medium 3.1
LMArena Text: instruction following13541398Mistral Medium 3.1
LMArena Text: creative writing13431391Mistral Medium 3.1
LMArena VisionNot measured1172Only Mistral Medium 3.1 measured
LMArena Text: English13971438Mistral Medium 3.1
LMArena Text: non-English13661408Mistral Medium 3.1
LMArena Text: Chinese14261447Mistral Medium 3.1
LMArena Text: German13771432Mistral Medium 3.1
LMArena Text: Japanese13481379Mistral Medium 3.1
LMArena Text: Korean13081380Mistral Medium 3.1
LMArena Text: French14001460Mistral Medium 3.1
LMArena Text: Spanish13851433Mistral Medium 3.1
LMArena Text: Russian13731411Mistral Medium 3.1
LMArena Text: Polish13681430Mistral Medium 3.1
LMArena Text: multi-turn13711418Mistral Medium 3.1
LMArena Text: longer queries13661406Mistral Medium 3.1
LMArena Text: writing and language13541395Mistral Medium 3.1
LMArena Text: entertainment and media13391390Mistral Medium 3.1
LMArena Vision: EnglishNot measured1179Only Mistral Medium 3.1 measured
LMArena Vision: ChineseNot measured1190Only Mistral Medium 3.1 measured
LMArena Vision: reading textNot measured1175Only Mistral Medium 3.1 measured
LMArena Vision: humorNot measured1168Only Mistral Medium 3.1 measured
LMArena Vision: captioningNot measured1145Only Mistral Medium 3.1 measured
LMArena Vision: recognizing thingsNot measured1147Only Mistral Medium 3.1 measured
LMArena Vision: creative writingNot measured1200Only Mistral Medium 3.1 measured
Neither model has a result on the other 17 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GLM 4.5 Air and Mistral Medium 3.1
BenchmarkGLM 4.5 AirMistral Medium 3.1Leader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

GLM 4.5 Air$0.0008Fits in one request
Mistral Medium 3.1$0.0014Fits in one request

GLM 4.5 Air costs less

Repository review

50K input + 3K output tokens

GLM 4.5 Air$0.013Fits in one request
Mistral Medium 3.1$0.026Fits in one request

GLM 4.5 Air costs less

Agent loop

200K input + 10K output tokens

GLM 4.5 Air$0.051Exceeds the context window
Mistral Medium 3.1$0.100Exceeds the context window

GLM 4.5 Air costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of GLM 4.5 Air and Mistral Medium 3.1
SpecificationZ.ai GLM 4.5 AirMistral Medium 3.1
MakerZ.aiMistral AI
WeightsOpen weightsNo public weights listed
ReleasedJuly 25, 2025August 13, 2025
Context window131K131K
Input $/Mtok$0.20$0.40
Output $/Mtok$1.10$2.00
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GLM 4.5 Air better than Mistral Medium 3.1 for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick GLM 4.5 Air for output tokens 1.8x cheaper ($1.10 vs $2.00 per million) and work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.

Which is cheaper, GLM 4.5 Air or Mistral Medium 3.1?

GLM 4.5 Air costs $0.20 per million input tokens and $1.10 per million output tokens; Mistral Medium 3.1 costs $0.40 and $2.00. Cost per solved task is known for neither of them.

Which has the bigger context window, GLM 4.5 Air or Mistral Medium 3.1?

Neither: both take 131K tokens.

How many benchmarks is the GLM 4.5 Air vs Mistral Medium 3.1 comparison based on?

46 benchmarks have a result for both models as of October 21, 2026. GLM 4.5 Air's coding index rests on 0 independent benchmarks and Mistral Medium 3.1's on 0. Where only one model has a result, the page says so instead of naming a winner.

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