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Gemini 4 Hydrogen vs GLM 5.3

Gemini 4 Hydrogen leads GLM 5.3 on coding, 77.9 to 68.5 on the Vibe Coding Index, and GLM 5.3 costs 1.7x less per output token ($4.40 vs $7.50 per million). Updated November 14, 2026; 43 benchmarks have a result for both.

Replace Gemini 4 Hydrogen Replace GLM 5.3
Gemini 4 HydrogenGoogle
Coding
77.9
Overall
77.1
Output $/M
$7.50
42
GLM 5.3Z.ai
Coding
68.5
Overall
67.0
Output $/M
$4.40
1
vs boards won of 43 shared

Gemini 4 Hydrogen or GLM 5.3: which to pick

Pick Gemini 4 Hydrogen for coding: it scores 77.9 on the Vibe Coding Index against 68.5 for GLM 5.3, though on 4 benchmarks against 5.

Pick GLM 5.3 for output tokens 1.7x cheaper ($4.40 vs $7.50 per million) and work measured by Harvey's Legal Agent Benchmark (Vals AI), where it leads.

Model AGemini 4 HydrogenGoogle77.9/1004 independent benchmarksNo cost per solved taskModel BGLM 5.3Z.ai68.5/1005 independent benchmarks$0.36 per solved task
Shared results
43
Gemini 4 Hydrogen only
7
GLM 5.3 only
66
Like-for-like categories
7 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
Gemini 4 Hydrogen 77.9 from 4 benchmarks, GLM 5.3 68.5 from 5 benchmarks.
Widest category
Reasoning, 17.4 points apart on average over 5 shared benchmarks.
Widest single gap
HLE-Diamond (Artificial Analysis run): Gemini 4 Hydrogen 58.8% against GLM 5.3 17.9%, 40.9 points apart on a 0 to 100 scale.
Output price
Gemini 4 Hydrogen $7.50 against GLM 5.3 $4.40 per million output tokens, 1.7x apart.
Context window
Both take 1.05M 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
CategoryGemini 4 HydrogenBarsGLM 5.3Ties
Coding100
Agentic work21
Reasoning50
Math20
Knowledge50
Web design40
General140
All shared boards421
CodingLike-for-likeSix of these boards feed the Vibe Coding Index100
Coding benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
LiveBench coding78.5%Not measuredOnly Gemini 4 Hydrogen measured
LMArena WebDev17041622Gemini 4 Hydrogen
AA Coding IndexNot measured74.8Only GLM 5.3 measured
LiveCodeBench (Vals AI)Not measured80.5%Only GLM 5.3 measured
SWE-bench Verified (Vals AI)Not measured95.4%Only GLM 5.3 measured
Terminal-Bench 4 (Vals AI)54.0%38.9%Gemini 4 Hydrogen
Vibe Code Bench (Vals AI)87.8%78.1%Gemini 4 Hydrogen
Code migration (Vals AI)Not measured44.2%Only GLM 5.3 measured
ProgramBench (Vals AI)Not measured1.5%Only GLM 5.3 measured
IOI (Vals AI)Not measured68.4%Only GLM 5.3 measured
Terminal-Bench 2.1 (Vals AI)Not measured71.5%Only GLM 5.3 measured
Vibe Code Bench 1-100 (Vals AI)Not measured20.0%Only GLM 5.3 measured
SkillsBench (Vals AI)Not measured47.5%Only GLM 5.3 measured
CyberBench (Vals AI)Not measured72.1%Only GLM 5.3 measured
SciCodeNot measured59.0%Only GLM 5.3 measured
Terminal-Bench 4.0 (Artificial Analysis run)54.0%41.9%Gemini 4 Hydrogen
FrontierCode 2.039.0%21.6%Gemini 4 Hydrogen
FrontierCodeNot measured40.1%Only GLM 5.3 measured
FrontierSWENot measured30.2%Only GLM 5.3 measured
WeirdMLNot measured75.4%Only GLM 5.3 measured
ALE-BenchNot measured1317.4Only GLM 5.3 measured
LMArena Text: coding15161499Gemini 4 Hydrogen
LMArena Text: software and IT15131495Gemini 4 Hydrogen
LMArena WebDev: React17241642Gemini 4 Hydrogen
LMArena WebDev: HTML17431596Gemini 4 Hydrogen
SWE-Bench Pro V2Not measured95.6%Only GLM 5.3 measured
GameBench 2Not measured72.3Only GLM 5.3 measured
Terminal-Bench 3.0Not measured32.4%Only GLM 5.3 measured
Terminal-Bench 4.0Not measured41.8%Only GLM 5.3 measured
CursorBench 4.057.8%42.6%Gemini 4 Hydrogen
Neither model has a result on the other 22 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
Intelligence benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
AA Intelligence IndexNot measured31.7Only GLM 5.3 measured
Epoch Capabilities IndexNot measured157.1Only GLM 5.3 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index21
Agentic work benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
AA Agentic IndexNot measured53.1Only GLM 5.3 measured
Design Arena: agents building web appsNot measured1270Only GLM 5.3 measured
Design Arena: agents building mobile appsNot measured1184Only GLM 5.3 measured
Design Arena: HTML slidesNot measured1189Only GLM 5.3 measured
Design Arena: PowerPoint slidesNot measured1217Only GLM 5.3 measured
LiveBench research86.8%Not measuredOnly Gemini 4 Hydrogen measured
LiveBench browser77.1%Not measuredOnly Gemini 4 Hydrogen measured
LiveBench long agentic61.8%Not measuredOnly Gemini 4 Hydrogen measured
SREBench (Vals AI)Not measured9.2%Only GLM 5.3 measured
Finance Agent (Vals AI)Not measured55.8%Only GLM 5.3 measured
Tax Agent Bench (Vals AI)52.3%43.3%Gemini 4 Hydrogen
Legal Research Bench (Vals AI)53.8%49.0%Gemini 4 Hydrogen
Harvey's Legal Agent Benchmark (Vals AI)11.3%14.6%GLM 5.3
Excel Modeling Benchmark (Vals AI)Not measured56.3%Only GLM 5.3 measured
Terminal-Bench-Science (Vals AI)Not measured5.7%Only GLM 5.3 measured
APEX-AgentsNot measured56.6%Only GLM 5.3 measured
PostTrainBenchNot measured34.5%Only GLM 5.3 measured
Vending-Bench 2Not measured$8,164Only GLM 5.3 measured
MCP AtlasNot measured84.2%Only GLM 5.3 measured
Neither model has a result on the other 25 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index50
Reasoning benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
GPQA DiamondNot measured88.1%Only GLM 5.3 measured
LiveBench reasoning88.6%Not measuredOnly Gemini 4 Hydrogen measured
MysteryMechanism (Vals AI)Not measured23.0%Only GLM 5.3 measured
GPQA Diamond (Artificial Analysis run)Not measured91.7%Only GLM 5.3 measured
Humanity's Last Exam (Artificial Analysis run)Not measured42.3%Only GLM 5.3 measured
HLE-Diamond (Artificial Analysis run)58.8%17.9%Gemini 4 Hydrogen
CritPt v2, hard subset (Artificial Analysis run)66.0%33.5%Gemini 4 Hydrogen
GPQA Diamond (Epoch AI run)Not measured90.9%Only GLM 5.3 measured
SimpleBenchNot measured66.2%Only GLM 5.3 measured
Chess puzzlesNot measured37.0%Only GLM 5.3 measured
Mystery game puzzlesNot measured33.0%Only GLM 5.3 measured
LMArena Text: hard prompts15201493Gemini 4 Hydrogen
LMArena Text: expert15581519Gemini 4 Hydrogen
LMArena Text: hard prompts in English15141500Gemini 4 Hydrogen
Humanity's Last Exam (Scale run)Not measured16.4%Only GLM 5.3 measured
Neither model has a result on the other 11 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
OTIS Mock AIMENot measured91.1%Only GLM 5.3 measured
FrontierMath, tiers 1 to 3Not measured68.8%Only GLM 5.3 measured
FrontierMath, tier 4Not measured29.3%Only GLM 5.3 measured
ProofBenchNot measured49.0%Only GLM 5.3 measured
LMArena Text: math15071500Gemini 4 Hydrogen
LMArena Text: mathematical work15341502Gemini 4 Hydrogen
Neither model has a result on the other 8 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
Knowledge benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
MMLU ProNot measured86.8%Only GLM 5.3 measured
LegalBench (Vals AI)Not measured84.8%Only GLM 5.3 measured
TaxEval (Vals AI)Not measured72.4%Only GLM 5.3 measured
MedCode (Vals AI)Not measured42.9%Only GLM 5.3 measured
AA-Omniscience46.36.0Gemini 4 Hydrogen
SimpleQA VerifiedNot measured41.0%Only GLM 5.3 measured
LMArena Text: science15191499Gemini 4 Hydrogen
LMArena Text: medicine and healthcare14881483Gemini 4 Hydrogen
LMArena Text: legal and government15321481Gemini 4 Hydrogen
LMArena Text: business and finance14861461Gemini 4 Hydrogen
Neither model has a result on the other 11 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index40
Web design benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
Design Arena: websites13201279Gemini 4 Hydrogen
Design Arena: UI componentsNot measured1284Only GLM 5.3 measured
Design Arena: game dev13691289Gemini 4 Hydrogen
Design Arena: data vizNot measured1251Only GLM 5.3 measured
Design Arena: 3D14151295Gemini 4 Hydrogen
Design Arena: all code categories13331284Gemini 4 Hydrogen
Design Arena: SVGNot measured1246Only GLM 5.3 measured
Design Arena: ASCII artNot measured1208Only GLM 5.3 measured
LiveBench design77.3%Not measuredOnly Gemini 4 Hydrogen measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index140
General benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
Vals Index68.5%59.9%Gemini 4 Hydrogen
LiveBench data analysis83.2%Not measuredOnly Gemini 4 Hydrogen measured
Public Benefits Bench (Vals AI)Not measured68.5%Only GLM 5.3 measured
MedScribe (Vals AI)Not measured88.8%Only GLM 5.3 measured
Long context reasoning (AA-LCR)Not measured79.7%Only GLM 5.3 measured
GDPval-AANot measured1655Only GLM 5.3 measured
DTBenchNot measured87.7%Only GLM 5.3 measured
LMCANot measured55.5%Only GLM 5.3 measured
LMArena Text15021475Gemini 4 Hydrogen
LMArena Text: instruction following15191483Gemini 4 Hydrogen
LMArena Text: creative writing15091459Gemini 4 Hydrogen
LMArena Text: English14991483Gemini 4 Hydrogen
LMArena Text: non-English14951462Gemini 4 Hydrogen
LMArena Text: Chinese16311535Gemini 4 Hydrogen
LMArena Text: GermanNot measured1497Only GLM 5.3 measured
LMArena Text: JapaneseNot measured1470Only GLM 5.3 measured
LMArena Text: KoreanNot measured1440Only GLM 5.3 measured
LMArena Text: French15121498Gemini 4 Hydrogen
LMArena Text: Spanish14941467Gemini 4 Hydrogen
LMArena Text: Russian14921472Gemini 4 Hydrogen
LMArena Text: PolishNot measured1463Only GLM 5.3 measured
LMArena Text: multi-turn14851474Gemini 4 Hydrogen
LMArena Text: longer queries15241486Gemini 4 Hydrogen
LMArena Text: writing and language15001468Gemini 4 Hydrogen
LMArena Text: entertainment and media15031447Gemini 4 Hydrogen
Neither model has a result on the other 24 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemini 4 Hydrogen and GLM 5.3
BenchmarkGemini 4 HydrogenGLM 5.3Leader
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

Gemini 4 Hydrogen$0.0053Fits in one request
GLM 5.3$0.0036Fits in one request

GLM 5.3 costs less

Repository review

50K input + 3K output tokens

Gemini 4 Hydrogen$0.098Fits in one request
GLM 5.3$0.083Fits in one request

GLM 5.3 costs less

Agent loop

200K input + 10K output tokens

Gemini 4 Hydrogen$0.375Fits in one request
GLM 5.3$0.324Fits in one request

GLM 5.3 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 Gemini 4 Hydrogen and GLM 5.3
SpecificationGoogle Gemini 4 HydrogenZ.ai GLM 5.3
MakerGoogleZ.ai
WeightsNo public weights listedOpen weights
ReleasedNovember 12, 2026August 18, 2026
Context window1.05M1.05M
Input $/Mtok$1.50$1.40
Output $/Mtok$7.50$4.40
Coding index77.968.5
Independent measurements behind it45
Cost per solved taskNot computable$0.36
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemini 4 Hydrogen better than GLM 5.3 for coding?

Pick Gemini 4 Hydrogen for coding: it scores 77.9 on the Vibe Coding Index against 68.5 for GLM 5.3, though on 4 benchmarks against 5. Pick GLM 5.3 for output tokens 1.7x cheaper ($4.40 vs $7.50 per million) and work measured by Harvey's Legal Agent Benchmark (Vals AI), where it leads.

Which is cheaper, Gemini 4 Hydrogen or GLM 5.3?

Gemini 4 Hydrogen costs $1.50 per million input tokens and $7.50 per million output tokens; GLM 5.3 costs $1.40 and $4.40. Cost per solved task is known for GLM 5.3 only.

Which has the bigger context window, Gemini 4 Hydrogen or GLM 5.3?

Neither: both take 1.05M tokens.

How many benchmarks is the Gemini 4 Hydrogen vs GLM 5.3 comparison based on?

43 benchmarks have a result for both models as of November 14, 2026. Gemini 4 Hydrogen's coding index rests on 4 independent benchmarks and GLM 5.3's on 5. Where only one model has a result, the page says so instead of naming a winner.

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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/gemini-4-hydrogen-vs-glm-5-3">LLMBenchmark.ai, Gemini 4 Hydrogen vs GLM 5.3</a></p>