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R1 0528 vs GPT-5.4 Mini

GPT-5.4 Mini leads R1 0528 on the Artificial Analysis Intelligence Index, 24.1 to 13.1, and R1 0528 costs 2.1x less per output token ($2.18 vs $4.50 per million). Updated October 22, 2026; 42 benchmarks have a result for both.

Replace R1 0528 Replace GPT-5.4 Mini
R1 0528DeepSeek
Coding
No data
Overall
46.8
Output $/M
$2.18
14
GPT-5.4 MiniOpenAI
Coding
35.8
Overall
44.0
Output $/M
$4.50
28
vs boards won of 42 shared

R1 0528 or GPT-5.4 Mini: which to pick

Only GPT-5.4 Mini has a coding score, 35.8 on the Vibe Coding Index; R1 0528 has none, so the two cannot be ranked on coding.

Pick R1 0528 for output tokens 2.1x cheaper ($2.18 vs $4.50 per million) and work measured by LMArena Text: hard prompts in English or LMArena Text: science, where it leads.

Model AR1 0528DeepSeekNot benchmarkedNo coding benchmarkNo cost per solved taskModel BGPT-5.4 MiniOpenAI35.8/1005 independent benchmarks$0.70 per solved task
Shared results
42
R1 0528 only
18
GPT-5.4 Mini only
47
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
R1 0528 not benchmarked, GPT-5.4 Mini 35.8 from 5 benchmarks.
Widest category
Agentic work, 24.0 points apart on average over 2 shared benchmarks.
Widest single gap
τ²-Bench Telecom: R1 0528 36.5% against GPT-5.4 Mini 83.3%, 46.8 points apart on a 0 to 100 scale.
Output price
R1 0528 $2.18 against GPT-5.4 Mini $4.50 per million output tokens, 2.1x apart.
Context window
R1 0528 takes 164K tokens, GPT-5.4 Mini 400K.

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
CategoryR1 0528BarsGPT-5.4 MiniTies
Coding05
Intelligence01
Agentic work02
Reasoning17
Math03
Knowledge31
General109
All shared boards1428
CodingLike-for-likeSix of these boards feed the Vibe Coding Index05
Coding benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
Aider polyglot71.4%Not measuredOnly R1 0528 measured
LMArena WebDevNot measured1397Only GPT-5.4 Mini measured
AA Coding IndexNot measured56.1Only GPT-5.4 Mini measured
LiveCodeBench (Vals AI)Not measured81.5%Only GPT-5.4 Mini measured
SWE-bench Verified (Vals AI)Not measured73.0%Only GPT-5.4 Mini measured
Terminal-Bench 4 (Vals AI)Not measured2.5%Only GPT-5.4 Mini measured
Vibe Code Bench (Vals AI)Not measured48.0%Only GPT-5.4 Mini measured
Code migration (Vals AI)Not measured12.9%Only GPT-5.4 Mini measured
ProgramBench (Vals AI)Not measured0.0%Only GPT-5.4 Mini measured
Terminal-Bench 2.1 (Vals AI)Not measured54.7%Only GPT-5.4 Mini measured
LiveCodeBench (Artificial Analysis run)77.0%Not measuredOnly R1 0528 measured
SciCodeNot measured52.1%Only GPT-5.4 Mini measured
Terminal-Bench Hard (Artificial Analysis run)15.9%52.3%GPT-5.4 Mini
FrontierCodeNot measured27.0%Only GPT-5.4 Mini measured
WeirdML41.6%60.3%GPT-5.4 Mini
ALE-Bench804.11188.6GPT-5.4 Mini
LMArena Text: coding14271438GPT-5.4 Mini
LMArena Text: software and IT14351436GPT-5.4 Mini
LMArena WebDev: ReactNot measured1386Only GPT-5.4 Mini measured
LMArena WebDev: HTMLNot measured1419Only GPT-5.4 Mini measured
Neither model has a result on the other 19 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
AA Intelligence Index13.124.1GPT-5.4 Mini
Epoch Capabilities IndexNot measured148.7Only GPT-5.4 Mini measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
AA Agentic IndexNot measured17.9Only GPT-5.4 Mini measured
Finance Agent (Vals AI)Not measured45.4%Only GPT-5.4 Mini measured
Tax Agent Bench (Vals AI)Not measured8.8%Only GPT-5.4 Mini measured
Legal Research Bench (Vals AI)Not measured12.5%Only GPT-5.4 Mini measured
Excel Modeling Benchmark (Vals AI)Not measured45.4%Only GPT-5.4 Mini measured
τ²-Bench Telecom36.5%83.3%GPT-5.4 Mini
METR time horizons53.8%Not measuredOnly R1 0528 measured
DeepResearch Bench35.1%36.3%GPT-5.4 Mini
BrowseComp-Plus16.4%Not measuredOnly R1 0528 measured
Neither model has a result on the other 32 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index17
Reasoning benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
GPQA DiamondNot measured83.1%Only GPT-5.4 Mini measured
MMMU Pro (Vals AI)Not measured79.3%Only GPT-5.4 Mini measured
GPQA Diamond (Artificial Analysis run)81.3%87.5%GPT-5.4 Mini
Humanity's Last Exam (Artificial Analysis run)15.8%28.1%GPT-5.4 Mini
GPQA Diamond (Epoch AI run)76.3%86.9%GPT-5.4 Mini
ARC-AGI21.2%63.7%GPT-5.4 Mini
ARC-AGI-21.1%18.9%GPT-5.4 Mini
SimpleBench40.8%Not measuredOnly R1 0528 measured
Chess puzzlesNot measured23.0%Only GPT-5.4 Mini measured
Mystery game puzzlesNot measured11.0%Only GPT-5.4 Mini measured
LMArena Text: hard prompts14151424GPT-5.4 Mini
LMArena Text: expert13941435GPT-5.4 Mini
LMArena Text: hard prompts in English14221420R1 0528
LMArena Vision: diagramsNot measured1266Only GPT-5.4 Mini measured
LMArena Vision: homeworkNot measured1285Only GPT-5.4 Mini measured
Kagi LLM BenchmarkNot measured37.9%Only GPT-5.4 Mini measured
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index03
Math benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
AIMENot measured95.6%Only GPT-5.4 Mini measured
AA Math Index76.0Not measuredOnly R1 0528 measured
AIME 2025 (Artificial Analysis run)76.0%Not measuredOnly R1 0528 measured
OTIS Mock AIME66.4%88.9%GPT-5.4 Mini
FrontierMath, tiers 1 to 3Not measured51.2%Only GPT-5.4 Mini measured
FrontierMath, tier 4Not measured9.8%Only GPT-5.4 Mini measured
ProofBenchNot measured21.0%Only GPT-5.4 Mini measured
MATH level 596.6%Not measuredOnly R1 0528 measured
LMArena Text: math14001418GPT-5.4 Mini
LMArena Text: mathematical work14151429GPT-5.4 Mini
Neither model has a result on the other 3 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index31
Knowledge benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
MMLU ProNot measured84.5%Only GPT-5.4 Mini measured
CaseLaw (Vals AI)Not measured51.7%Only GPT-5.4 Mini measured
CorpFin (Vals AI)Not measured60.9%Only GPT-5.4 Mini measured
TaxEval (Vals AI)Not measured71.2%Only GPT-5.4 Mini measured
MortgageTax (Vals AI)Not measured63.5%Only GPT-5.4 Mini measured
MMLU Pro (Artificial Analysis run)84.9%Not measuredOnly R1 0528 measured
SimpleQA VerifiedNot measured29.4%Only GPT-5.4 Mini measured
LMArena Text: science14301417R1 0528
LMArena Text: medicine and healthcare14451395R1 0528
LMArena Text: legal and government14191414R1 0528
LMArena Text: business and finance14021418GPT-5.4 Mini
Neither model has a result on the other 7 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
Web design benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
Design Arena: websites1149Not measuredOnly R1 0528 measured
Design Arena: UI components1100Not measuredOnly R1 0528 measured
Design Arena: game dev1097Not measuredOnly R1 0528 measured
Design Arena: data viz1182Not measuredOnly R1 0528 measured
Design Arena: 3D1110Not measuredOnly R1 0528 measured
Design Arena: all code categories1138Not measuredOnly R1 0528 measured
Design Arena: SVG1038Not measuredOnly R1 0528 measured
Neither model has a result on the other 2 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index109
General benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
SAGE (Vals AI)Not measured50.8%Only GPT-5.4 Mini measured
Vals Multimodal IndexNot measured54.2%Only GPT-5.4 Mini measured
IFBench39.6%73.3%GPT-5.4 Mini
Long context reasoning (AA-LCR)55.7%77.0%GPT-5.4 Mini
DTBenchNot measured80.0%Only GPT-5.4 Mini measured
LMCANot measured40.8%Only GPT-5.4 Mini measured
Fiction.LiveBench75.0%Not measuredOnly R1 0528 measured
Creative writing (Lech Mazur)81.9%Not measuredOnly R1 0528 measured
LMArena Text14281412R1 0528
LMArena Text: instruction following13821405GPT-5.4 Mini
LMArena Text: creative writing14051370R1 0528
LMArena VisionNot measured1245Only GPT-5.4 Mini measured
LMArena Text: English14371412R1 0528
LMArena Text: non-English14121405R1 0528
LMArena Text: Chinese14421446GPT-5.4 Mini
LMArena Text: German14041408GPT-5.4 Mini
LMArena Text: Japanese13911375R1 0528
LMArena Text: Korean13601370GPT-5.4 Mini
LMArena Text: French14171441GPT-5.4 Mini
LMArena Text: Spanish14111405R1 0528
LMArena Text: Russian14231417R1 0528
LMArena Text: Polish14281415R1 0528
LMArena Text: multi-turn14051429GPT-5.4 Mini
LMArena Text: longer queries13911408GPT-5.4 Mini
LMArena Text: writing and language14021393R1 0528
LMArena Text: entertainment and media14001373R1 0528
LMArena Vision: EnglishNot measured1244Only GPT-5.4 Mini measured
LMArena Vision: ChineseNot measured1286Only GPT-5.4 Mini measured
LMArena Vision: reading textNot measured1253Only GPT-5.4 Mini measured
LMArena Vision: humorNot measured1235Only GPT-5.4 Mini measured
LMArena Vision: recognizing thingsNot measured1218Only GPT-5.4 Mini measured
LMArena Vision: creative writingNot measured1222Only GPT-5.4 Mini measured
Neither model has a result on the other 14 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for R1 0528 and GPT-5.4 Mini
BenchmarkR1 0528GPT-5.4 MiniLeader
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

R1 0528$0.0016Fits in one request
GPT-5.4 Mini$0.0030Fits in one request

R1 0528 costs less

Repository review

50K input + 3K output tokens

R1 0528$0.032Fits in one request
GPT-5.4 Mini$0.051Fits in one request

R1 0528 costs less

Agent loop

200K input + 10K output tokens

R1 0528$0.122Exceeds the context window
GPT-5.4 Mini$0.195Fits in one request

R1 0528 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 R1 0528 and GPT-5.4 Mini
SpecificationDeepSeek R1 0528OpenAI GPT-5.4 Mini
MakerDeepSeekOpenAI
WeightsOpen weightsNo public weights listed
ReleasedMay 28, 2025March 17, 2026
Context window164K400K
Input $/Mtok$0.50$0.75
Output $/Mtok$2.18$4.50
Coding indexNot benchmarked35.8
Independent measurements behind it05
Cost per solved taskNot computable$0.70
SourceOpenRouter listingOpenRouter listing

Questions

Is R1 0528 better than GPT-5.4 Mini for coding?

Only GPT-5.4 Mini has a coding score, 35.8 on the Vibe Coding Index; R1 0528 has none, so the two cannot be ranked on coding. Pick R1 0528 for output tokens 2.1x cheaper ($2.18 vs $4.50 per million) and work measured by LMArena Text: hard prompts in English or LMArena Text: science, where it leads.

Which is cheaper, R1 0528 or GPT-5.4 Mini?

R1 0528 costs $0.50 per million input tokens and $2.18 per million output tokens; GPT-5.4 Mini costs $0.75 and $4.50. Cost per solved task is known for GPT-5.4 Mini only.

Which has the bigger context window, R1 0528 or GPT-5.4 Mini?

GPT-5.4 Mini, with 400K tokens against 164K.

How many benchmarks is the R1 0528 vs GPT-5.4 Mini comparison based on?

42 benchmarks have a result for both models as of October 22, 2026. R1 0528's coding index rests on 0 independent benchmarks and GPT-5.4 Mini's on 5. Where only one model has a result, the page says so instead of naming a winner.

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