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Gemini 4 Argon vs GPT-5.4

Gemini 4 Argon leads GPT-5.4 on coding, 81.0 to 64.4 on the Vibe Coding Index, and Gemini 4 Argon costs 1.5x less per output token ($10.00 vs $15.00 per million). Updated October 21, 2026; 60 benchmarks have a result for both.

Replace Gemini 4 Argon Replace GPT-5.4
Gemini 4 ArgonGoogle
Coding
81.0
Overall
84.0
Output $/M
$10.00
59
GPT-5.4OpenAI
Coding
64.4
Overall
69.6
Output $/M
$15.00
1
vs boards won of 60 shared

Gemini 4 Argon or GPT-5.4: which to pick

Pick Gemini 4 Argon for coding: it scores 81.0 on the Vibe Coding Index against 64.4 for GPT-5.4.

Pick GPT-5.4 for a larger context window (1.05M against 1.05M tokens) and work measured by Long context reasoning (AA-LCR), where it leads.

Model AGemini 4 ArgonGoogle81.0/1005 independent benchmarksNo cost per solved taskModel BGPT-5.4OpenAI64.4/1003 independent benchmarks$1.02 per solved task
Shared results
60
Gemini 4 Argon only
33
GPT-5.4 only
50
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
Gemini 4 Argon 81.0 from 5 benchmarks, GPT-5.4 64.4 from 3 benchmarks.
Widest category
Agentic work, 38.7 points apart on average over 2 shared benchmarks.
Widest single gap
Vending-Bench 2: Gemini 4 Argon $13,718 against GPT-5.4 $6,144, 47.3 points apart on a 0 to 100 scale.
Output price
Gemini 4 Argon $10.00 against GPT-5.4 $15.00 per million output tokens, 1.5x apart.
Context window
Gemini 4 Argon takes 1.05M tokens, GPT-5.4 1.05M.

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 ArgonBarsGPT-5.4Ties
Coding90
Intelligence20
Agentic work20
Reasoning100
Math60
Knowledge70
Web design60
General171
All shared boards591
CodingLike-for-likeSix of these boards feed the Vibe Coding Index90
Coding benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
LiveBench coding89.7%Not measuredOnly Gemini 4 Argon measured
LMArena WebDev16781464Gemini 4 Argon
AA Coding IndexNot measured71.1Only GPT-5.4 measured
LiveCodeBench (Vals AI)Not measured84.1%Only GPT-5.4 measured
SWE-bench Verified (Vals AI)Not measured78.2%Only GPT-5.4 measured
Terminal-Bench 4 (Vals AI)57.6%Not measuredOnly Gemini 4 Argon measured
Vibe Code Bench (Vals AI)91.9%67.4%Gemini 4 Argon
Code migration (Vals AI)68.2%35.0%Gemini 4 Argon
ProgramBench (Vals AI)2.5%0.5%Gemini 4 Argon
IOI (Vals AI)100.0%Not measuredOnly Gemini 4 Argon measured
Terminal-Bench 2.1 (Vals AI)57.7%Not measuredOnly Gemini 4 Argon measured
SWE-bench Multimodal (Vals AI)56.0%Not measuredOnly Gemini 4 Argon measured
Vibe Code Bench 1-100 (Vals AI)21.2%Not measuredOnly Gemini 4 Argon measured
SkillsBench (Vals AI)Not measured51.7%Only GPT-5.4 measured
CyberBench (Vals AI)77.9%Not measuredOnly Gemini 4 Argon measured
SciCode61.8%Not measuredOnly Gemini 4 Argon measured
Terminal-Bench Hard (Artificial Analysis run)Not measured57.6%Only GPT-5.4 measured
Terminal-BenchNot measured81.8%Only GPT-5.4 measured
FrontierCode47.5%Not measuredOnly Gemini 4 Argon measured
FrontierSWE55.0%Not measuredOnly Gemini 4 Argon measured
GSO-BenchNot measured31.4%Only GPT-5.4 measured
WeirdMLNot measured77.7%Only GPT-5.4 measured
MirrorCodeNot measured15.6%Only GPT-5.4 measured
ALE-Bench2100.11607.0Gemini 4 Argon
LMArena Text: coding15461496Gemini 4 Argon
LMArena Text: software and IT15561491Gemini 4 Argon
LMArena WebDev: React16921454Gemini 4 Argon
LMArena WebDev: HTML16431478Gemini 4 Argon
LMArena WebDev: from an imageNot measured1436Only GPT-5.4 measured
SciCode12.3%Not measuredOnly Gemini 4 Argon measured
Neither model has a result on the other 9 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
AA Intelligence Index52.639.0Gemini 4 Argon
Epoch Capabilities Index166.4157.3Gemini 4 Argon
Agentic workLike-for-likePublic boards, shown as published, kept out of the index20
Agentic work benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
Design Arena: agents building web appsNot measured1059Only GPT-5.4 measured
Design Arena: agents building full-stack appsNot measured1017Only GPT-5.4 measured
Design Arena: agents building mobile appsNot measured1087Only GPT-5.4 measured
Design Arena: agents building Android appsNot measured1030Only GPT-5.4 measured
Design Arena: agents building Godot gamesNot measured1135Only GPT-5.4 measured
Design Arena: spreadsheets1142Not measuredOnly Gemini 4 Argon measured
LiveBench research83.1%Not measuredOnly Gemini 4 Argon measured
LiveBench browser92.0%Not measuredOnly Gemini 4 Argon measured
LiveBench long agentic69.9%Not measuredOnly Gemini 4 Argon measured
SREBench (Vals AI)44.3%Not measuredOnly Gemini 4 Argon measured
Finance Agent (Vals AI)65.4%Not measuredOnly Gemini 4 Argon measured
Tax Agent Bench (Vals AI)44.6%Not measuredOnly Gemini 4 Argon measured
Legal Research Bench (Vals AI)54.8%Not measuredOnly Gemini 4 Argon measured
Harvey's Legal Agent Benchmark (Vals AI)27.1%Not measuredOnly Gemini 4 Argon measured
Excel Modeling Benchmark (Vals AI)75.2%Not measuredOnly Gemini 4 Argon measured
BioMysteryBench (Vals AI)76.3%Not measuredOnly Gemini 4 Argon measured
Terminal-Bench-Science (Vals AI)44.3%Not measuredOnly Gemini 4 Argon measured
Vals Science Index55.4%Not measuredOnly Gemini 4 Argon measured
Time Horizon Index (Vals AI)52.5%Not measuredOnly Gemini 4 Argon measured
CUA-bench (Vals AI)4.8%Not measuredOnly Gemini 4 Argon measured
Robo-bench (Vals AI)0.8%Not measuredOnly Gemini 4 Argon measured
τ²-Bench TelecomNot measured87.1%Only GPT-5.4 measured
APEX-Agents82.4%52.4%Gemini 4 Argon
METR time horizonsNot measured74.3%Only GPT-5.4 measured
DeepResearch BenchNot measured35.1%Only GPT-5.4 measured
PostTrainBenchNot measured19.0%Only GPT-5.4 measured
Vending-Bench 2$13,718$6,144Gemini 4 Argon
Neither model has a result on the other 14 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index100
Reasoning benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
GPQA DiamondNot measured91.7%Only GPT-5.4 measured
LiveBench reasoning95.1%Not measuredOnly Gemini 4 Argon measured
MysteryMechanism (Vals AI)45.5%Not measuredOnly Gemini 4 Argon measured
MMMU Pro (Vals AI)Not measured87.5%Only GPT-5.4 measured
GPQA Diamond (Artificial Analysis run)Not measured92.0%Only GPT-5.4 measured
Humanity's Last Exam (Artificial Analysis run)57.1%43.7%Gemini 4 Argon
GPQA Diamond (Epoch AI run)96.4%93.3%Gemini 4 Argon
ARC-AGI98.5%93.7%Gemini 4 Argon
ARC-AGI-291.3%74.0%Gemini 4 Argon
Chess puzzles59.0%48.0%Gemini 4 Argon
Mystery game puzzles64.0%37.0%Gemini 4 Argon
EBR-bench64.8%25.4%Gemini 4 Argon
LMArena Text: hard prompts15461485Gemini 4 Argon
LMArena Text: expert15501507Gemini 4 Argon
LMArena Text: hard prompts in English15481479Gemini 4 Argon
LMArena Vision: diagramsNot measured1327Only GPT-5.4 measured
LMArena Vision: homeworkNot measured1336Only GPT-5.4 measured
Kagi LLM BenchmarkNot measured63.8%Only GPT-5.4 measured
Neither model has a result on the other 4 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index60
Math benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
AIMENot measured96.7%Only GPT-5.4 measured
OTIS Mock AIME100.0%97.8%Gemini 4 Argon
FrontierMath, tiers 1 to 386.0%78.6%Gemini 4 Argon
FrontierMath, tier 478.0%49.0%Gemini 4 Argon
ProofBench99.0%56.0%Gemini 4 Argon
LMArena Text: math15361488Gemini 4 Argon
LMArena Text: mathematical work15571497Gemini 4 Argon
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index70
Knowledge benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
MMLU ProNot measured87.5%Only GPT-5.4 measured
LegalBench (Vals AI)88.3%86.0%Gemini 4 Argon
CaseLaw (Vals AI)Not measured63.8%Only GPT-5.4 measured
CorpFin (Vals AI)Not measured65.3%Only GPT-5.4 measured
TaxEval (Vals AI)Not measured74.0%Only GPT-5.4 measured
MortgageTax (Vals AI)Not measured68.3%Only GPT-5.4 measured
MedQA (Vals AI)Not measured96.1%Only GPT-5.4 measured
MedCode (Vals AI)58.8%41.3%Gemini 4 Argon
SimpleQA Verified76.0%45.1%Gemini 4 Argon
LMArena Text: science15481479Gemini 4 Argon
LMArena Text: medicine and healthcare15551458Gemini 4 Argon
LMArena Text: legal and government15481486Gemini 4 Argon
LMArena Text: business and finance15251474Gemini 4 Argon
Neither model has a result on the other 5 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index60
Web design benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
Design Arena: websites13151199Gemini 4 Argon
Design Arena: UI components13311215Gemini 4 Argon
Design Arena: game dev13751195Gemini 4 Argon
Design Arena: data viz13361196Gemini 4 Argon
Design Arena: 3D13891066Gemini 4 Argon
Design Arena: all code categories13291180Gemini 4 Argon
Design Arena: SVGNot measured1142Only GPT-5.4 measured
Design Arena: ASCII artNot measured1188Only GPT-5.4 measured
LiveBench design73.7%Not measuredOnly Gemini 4 Argon measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index171
General benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
Vals Index69.2%Not measuredOnly Gemini 4 Argon measured
LiveBench data analysis85.2%Not measuredOnly Gemini 4 Argon measured
Public Benefits Bench (Vals AI)69.8%Not measuredOnly Gemini 4 Argon measured
SAGE (Vals AI)53.6%43.3%Gemini 4 Argon
MedScribe (Vals AI)87.4%77.5%Gemini 4 Argon
IFBenchNot measured73.9%Only GPT-5.4 measured
Long context reasoning (AA-LCR)79.7%82.0%GPT-5.4
DTBench97.6%94.4%Gemini 4 Argon
LMCA63.7%52.0%Gemini 4 Argon
CL-benchNot measured27.9%Only GPT-5.4 measured
Furniture assembly72.5%37.5%Gemini 4 Argon
CL-bench LifeNot measured21.7%Only GPT-5.4 measured
LMArena Text15321469Gemini 4 Argon
LMArena Text: instruction following15341469Gemini 4 Argon
LMArena Text: creative writing15271439Gemini 4 Argon
LMArena VisionNot measured1303Only GPT-5.4 measured
LMArena Text: English15381467Gemini 4 Argon
LMArena Text: non-English15221465Gemini 4 Argon
LMArena Text: Chinese16111520Gemini 4 Argon
LMArena Text: GermanNot measured1472Only GPT-5.4 measured
LMArena Text: JapaneseNot measured1485Only GPT-5.4 measured
LMArena Text: KoreanNot measured1449Only GPT-5.4 measured
LMArena Text: FrenchNot measured1493Only GPT-5.4 measured
LMArena Text: Spanish15031452Gemini 4 Argon
LMArena Text: Russian15341480Gemini 4 Argon
LMArena Text: PolishNot measured1472Only GPT-5.4 measured
LMArena Text: multi-turn15561482Gemini 4 Argon
LMArena Text: longer queries15471473Gemini 4 Argon
LMArena Text: writing and language15291458Gemini 4 Argon
LMArena Text: entertainment and media15271438Gemini 4 Argon
LMArena Vision: EnglishNot measured1301Only GPT-5.4 measured
LMArena Vision: ChineseNot measured1354Only GPT-5.4 measured
LMArena Vision: reading textNot measured1312Only GPT-5.4 measured
LMArena Vision: humorNot measured1284Only GPT-5.4 measured
LMArena Vision: recognizing thingsNot measured1251Only GPT-5.4 measured
LMArena Vision: creative writingNot measured1283Only GPT-5.4 measured
LMArena DocumentNot measured1471Only GPT-5.4 measured
Neither model has a result on the other 9 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemini 4 Argon and GPT-5.4
BenchmarkGemini 4 ArgonGPT-5.4Leader
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 Argon$0.0070Fits in one request
GPT-5.4$0.010Fits in one request

Gemini 4 Argon costs less

Repository review

50K input + 3K output tokens

Gemini 4 Argon$0.130Fits in one request
GPT-5.4$0.170Fits in one request

Gemini 4 Argon costs less

Agent loop

200K input + 10K output tokens

Gemini 4 Argon$0.500Fits in one request
GPT-5.4$0.650Fits in one request

Gemini 4 Argon 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 Argon and GPT-5.4
SpecificationGoogle Gemini 4 ArgonOpenAI GPT-5.4
MakerGoogleOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedOctober 13, 2026March 5, 2026
Context window1.05M1.05M
Input $/Mtok$2.00$2.50
Output $/Mtok$10.00$15.00
Coding index81.064.4
Independent measurements behind it53
Cost per solved taskNot computable$1.02
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemini 4 Argon better than GPT-5.4 for coding?

Pick Gemini 4 Argon for coding: it scores 81.0 on the Vibe Coding Index against 64.4 for GPT-5.4. Pick GPT-5.4 for a larger context window (1.05M against 1.05M tokens) and work measured by Long context reasoning (AA-LCR), where it leads.

Which is cheaper, Gemini 4 Argon or GPT-5.4?

Gemini 4 Argon costs $2.00 per million input tokens and $10.00 per million output tokens; GPT-5.4 costs $2.50 and $15.00. Cost per solved task is known for GPT-5.4 only.

Which has the bigger context window, Gemini 4 Argon or GPT-5.4?

GPT-5.4, with 1.05M tokens against 1.05M.

How many benchmarks is the Gemini 4 Argon vs GPT-5.4 comparison based on?

60 benchmarks have a result for both models as of October 21, 2026. Gemini 4 Argon's coding index rests on 5 independent benchmarks and GPT-5.4's on 3. Where only one model has a result, the page says so instead of naming a winner.

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