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R1 0528 vs Gemini 3.5 Flash Lite

Gemini 3.5 Flash Lite leads R1 0528 on the Artificial Analysis Intelligence Index, 22.2 to 13.1, at about the same output price ($2.50 vs $2.18 per million). Updated October 22, 2026; 38 benchmarks have a result for both.

Replace R1 0528 Replace Gemini 3.5 Flash Lite
R1 0528DeepSeek
Coding
No data
Overall
46.8
Output $/M
$2.18
3
Gemini 3.5 Flash LiteGoogle
Coding
49.0
Overall
49.8
Output $/M
$2.50
35
vs boards won of 38 shared

R1 0528 or Gemini 3.5 Flash Lite: which to pick

Only Gemini 3.5 Flash Lite has a coding score, 49.0 on the Vibe Coding Index; R1 0528 has none, so the two cannot be ranked on coding.

Pick R1 0528 for output tokens 1.1x cheaper ($2.18 vs $2.50 per million) and work measured by WeirdML or ALE-Bench, where it leads.

Model AR1 0528DeepSeekNot benchmarkedNo coding benchmarkNo cost per solved taskModel BGemini 3.5 Flash LiteGoogle49.0/1003 independent benchmarks$0.41 per solved task
Shared results
38
R1 0528 only
22
Gemini 3.5 Flash Lite only
47
Like-for-like categories
6 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, Gemini 3.5 Flash Lite 49.0 from 3 benchmarks.
Widest category
Intelligence, 9.1 points apart on average over 1 shared benchmark.
Widest single gap
ARC-AGI: R1 0528 21.2% against Gemini 3.5 Flash Lite 53.5%, 32.3 points apart on a 0 to 100 scale.
Output price
R1 0528 $2.18 against Gemini 3.5 Flash Lite $2.50 per million output tokens, 1.1x apart.
Context window
R1 0528 takes 164K tokens, Gemini 3.5 Flash Lite 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
CategoryR1 0528BarsGemini 3.5 Flash LiteTies
Coding22
Intelligence01
Reasoning08
Math03
Knowledge13
General018
All shared boards335
CodingLike-for-likeSix of these boards feed the Vibe Coding Index22
Coding benchmarks for R1 0528 and Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
Aider polyglot71.4%Not measuredOnly R1 0528 measured
LMArena WebDevNot measured1435Only Gemini 3.5 Flash Lite measured
AA Coding IndexNot measured49.3Only Gemini 3.5 Flash Lite measured
LiveCodeBench (Vals AI)Not measured79.0%Only Gemini 3.5 Flash Lite measured
SWE-bench Verified (Vals AI)Not measured75.0%Only Gemini 3.5 Flash Lite measured
Vibe Code Bench (Vals AI)Not measured37.2%Only Gemini 3.5 Flash Lite measured
Code migration (Vals AI)Not measured6.2%Only Gemini 3.5 Flash Lite measured
ProgramBench (Vals AI)Not measured0.0%Only Gemini 3.5 Flash Lite measured
Terminal-Bench 2.1 (Vals AI)Not measured50.2%Only Gemini 3.5 Flash Lite measured
CyberBench (Vals AI)Not measured59.1%Only Gemini 3.5 Flash Lite measured
LiveCodeBench (Artificial Analysis run)77.0%Not measuredOnly R1 0528 measured
SciCodeNot measured41.3%Only Gemini 3.5 Flash Lite measured
Terminal-Bench Hard (Artificial Analysis run)15.9%Not measuredOnly R1 0528 measured
WeirdML41.6%39.0%R1 0528
ALE-Bench804.1765.3R1 0528
LMArena Text: coding14271453Gemini 3.5 Flash Lite
LMArena Text: software and IT14351451Gemini 3.5 Flash Lite
LMArena WebDev: ReactNot measured1408Only Gemini 3.5 Flash Lite measured
LMArena WebDev: from an imageNot measured1448Only Gemini 3.5 Flash Lite measured
SciCodeNot measured6.2%Only Gemini 3.5 Flash Lite 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 Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
AA Intelligence Index13.122.2Gemini 3.5 Flash Lite
Epoch Capabilities IndexNot measured144.9Only Gemini 3.5 Flash Lite measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index10 boards, none shared
Agentic work benchmarks for R1 0528 and Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
AA Agentic IndexNot measured14.3Only Gemini 3.5 Flash Lite measured
Finance Agent (Vals AI)Not measured47.4%Only Gemini 3.5 Flash Lite measured
Tax Agent Bench (Vals AI)Not measured7.2%Only Gemini 3.5 Flash Lite measured
Legal Research Bench (Vals AI)Not measured13.9%Only Gemini 3.5 Flash Lite measured
Excel Modeling Benchmark (Vals AI)Not measured43.2%Only Gemini 3.5 Flash Lite measured
τ²-Bench Telecom36.5%Not measuredOnly R1 0528 measured
APEX-AgentsNot measured29.3%Only Gemini 3.5 Flash Lite measured
METR time horizons53.8%Not measuredOnly R1 0528 measured
DeepResearch Bench35.1%Not measuredOnly R1 0528 measured
BrowseComp-Plus16.4%Not measuredOnly R1 0528 measured
Neither model has a result on the other 31 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index08
Reasoning benchmarks for R1 0528 and Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
GPQA DiamondNot measured83.8%Only Gemini 3.5 Flash Lite measured
MMMU Pro (Vals AI)Not measured83.6%Only Gemini 3.5 Flash Lite measured
GPQA Diamond (Artificial Analysis run)81.3%83.8%Gemini 3.5 Flash Lite
Humanity's Last Exam (Artificial Analysis run)15.8%18.8%Gemini 3.5 Flash Lite
GPQA Diamond (Epoch AI run)76.3%83.3%Gemini 3.5 Flash Lite
ARC-AGI21.2%53.5%Gemini 3.5 Flash Lite
ARC-AGI-21.1%10.3%Gemini 3.5 Flash Lite
SimpleBench40.8%Not measuredOnly R1 0528 measured
Chess puzzlesNot measured21.0%Only Gemini 3.5 Flash Lite measured
Mystery game puzzlesNot measured19.0%Only Gemini 3.5 Flash Lite measured
LMArena Text: hard prompts14151441Gemini 3.5 Flash Lite
LMArena Text: expert13941434Gemini 3.5 Flash Lite
LMArena Text: hard prompts in English14221440Gemini 3.5 Flash Lite
LMArena Vision: diagramsNot measured1284Only Gemini 3.5 Flash Lite measured
LMArena Vision: homeworkNot measured1291Only Gemini 3.5 Flash Lite measured
Neither model has a result on the other 7 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index03
Math benchmarks for R1 0528 and Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
AA Math Index76.0Not measuredOnly R1 0528 measured
AIME 2025 (Artificial Analysis run)76.0%Not measuredOnly R1 0528 measured
OTIS Mock AIME66.4%71.1%Gemini 3.5 Flash Lite
FrontierMath, tiers 1 to 3Not measured26.0%Only Gemini 3.5 Flash Lite measured
FrontierMath, tier 4Not measured0.0%Only Gemini 3.5 Flash Lite measured
ProofBenchNot measured13.0%Only Gemini 3.5 Flash Lite measured
MATH level 596.6%Not measuredOnly R1 0528 measured
LMArena Text: math14001434Gemini 3.5 Flash Lite
LMArena Text: mathematical work14151433Gemini 3.5 Flash Lite
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index13
Knowledge benchmarks for R1 0528 and Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
MMLU ProNot measured85.8%Only Gemini 3.5 Flash Lite measured
LegalBench (Vals AI)Not measured84.1%Only Gemini 3.5 Flash Lite measured
CorpFin (Vals AI)Not measured60.7%Only Gemini 3.5 Flash Lite measured
TaxEval (Vals AI)Not measured72.6%Only Gemini 3.5 Flash Lite measured
MortgageTax (Vals AI)Not measured68.7%Only Gemini 3.5 Flash Lite measured
MedCode (Vals AI)Not measured43.5%Only Gemini 3.5 Flash Lite measured
MMLU Pro (Artificial Analysis run)84.9%Not measuredOnly R1 0528 measured
LMArena Text: science14301451Gemini 3.5 Flash Lite
LMArena Text: medicine and healthcare14451438R1 0528
LMArena Text: legal and government14191431Gemini 3.5 Flash Lite
LMArena Text: business and finance14021423Gemini 3.5 Flash Lite
FACTS Benchmark SuiteNot measured53.5%Only Gemini 3.5 Flash Lite measured
Neither model has a result on the other 6 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
Web design benchmarks for R1 0528 and Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
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 index018
General benchmarks for R1 0528 and Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
Public Benefits Bench (Vals AI)Not measured51.8%Only Gemini 3.5 Flash Lite measured
SAGE (Vals AI)Not measured47.3%Only Gemini 3.5 Flash Lite measured
MedScribe (Vals AI)Not measured70.9%Only Gemini 3.5 Flash Lite measured
IFBench39.6%Not measuredOnly R1 0528 measured
Long context reasoning (AA-LCR)55.7%76.0%Gemini 3.5 Flash Lite
DTBenchNot measured83.5%Only Gemini 3.5 Flash Lite measured
LMCANot measured37.6%Only Gemini 3.5 Flash Lite measured
Fiction.LiveBench75.0%Not measuredOnly R1 0528 measured
Creative writing (Lech Mazur)81.9%Not measuredOnly R1 0528 measured
LMArena Text14281435Gemini 3.5 Flash Lite
LMArena Text: instruction following13821419Gemini 3.5 Flash Lite
LMArena Text: creative writing14051421Gemini 3.5 Flash Lite
LMArena VisionNot measured1269Only Gemini 3.5 Flash Lite measured
LMArena Text: English14371438Gemini 3.5 Flash Lite
LMArena Text: non-English14121427Gemini 3.5 Flash Lite
LMArena Text: Chinese14421468Gemini 3.5 Flash Lite
LMArena Text: German14041454Gemini 3.5 Flash Lite
LMArena Text: Japanese13911426Gemini 3.5 Flash Lite
LMArena Text: Korean13601407Gemini 3.5 Flash Lite
LMArena Text: French14171451Gemini 3.5 Flash Lite
LMArena Text: Spanish14111441Gemini 3.5 Flash Lite
LMArena Text: Russian14231443Gemini 3.5 Flash Lite
LMArena Text: Polish14281437Gemini 3.5 Flash Lite
LMArena Text: multi-turn14051445Gemini 3.5 Flash Lite
LMArena Text: longer queries13911435Gemini 3.5 Flash Lite
LMArena Text: writing and language14021428Gemini 3.5 Flash Lite
LMArena Text: entertainment and media14001414Gemini 3.5 Flash Lite
LMArena Vision: EnglishNot measured1269Only Gemini 3.5 Flash Lite measured
LMArena Vision: ChineseNot measured1311Only Gemini 3.5 Flash Lite measured
LMArena Vision: reading textNot measured1280Only Gemini 3.5 Flash Lite measured
LMArena Vision: humorNot measured1287Only Gemini 3.5 Flash Lite measured
LMArena Vision: creative writingNot measured1260Only Gemini 3.5 Flash Lite 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 Gemini 3.5 Flash Lite
BenchmarkR1 0528Gemini 3.5 Flash LiteLeader
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
Gemini 3.5 Flash Lite$0.0015Fits in one request

Gemini 3.5 Flash Lite costs less

Repository review

50K input + 3K output tokens

R1 0528$0.032Fits in one request
Gemini 3.5 Flash Lite$0.022Fits in one request

Gemini 3.5 Flash Lite costs less

Agent loop

200K input + 10K output tokens

R1 0528$0.122Exceeds the context window
Gemini 3.5 Flash Lite$0.085Fits in one request

Gemini 3.5 Flash Lite 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 Gemini 3.5 Flash Lite
SpecificationDeepSeek R1 0528Google Gemini 3.5 Flash Lite
MakerDeepSeekGoogle
WeightsOpen weightsNo public weights listed
ReleasedMay 28, 2025July 21, 2026
Context window164K1.05M
Input $/Mtok$0.50$0.30
Output $/Mtok$2.18$2.50
Coding indexNot benchmarked49.0
Independent measurements behind it03
Cost per solved taskNot computable$0.41
SourceOpenRouter listingOpenRouter listing

Questions

Is R1 0528 better than Gemini 3.5 Flash Lite for coding?

Only Gemini 3.5 Flash Lite has a coding score, 49.0 on the Vibe Coding Index; R1 0528 has none, so the two cannot be ranked on coding. Pick R1 0528 for output tokens 1.1x cheaper ($2.18 vs $2.50 per million) and work measured by WeirdML or ALE-Bench, where it leads.

Which is cheaper, R1 0528 or Gemini 3.5 Flash Lite?

R1 0528 costs $0.50 per million input tokens and $2.18 per million output tokens; Gemini 3.5 Flash Lite costs $0.30 and $2.50. Cost per solved task is known for Gemini 3.5 Flash Lite only.

Which has the bigger context window, R1 0528 or Gemini 3.5 Flash Lite?

Gemini 3.5 Flash Lite, with 1.05M tokens against 164K.

How many benchmarks is the R1 0528 vs Gemini 3.5 Flash Lite comparison based on?

38 benchmarks have a result for both models as of October 22, 2026. R1 0528's coding index rests on 0 independent benchmarks and Gemini 3.5 Flash Lite's on 3. Where only one model has a result, the page says so instead of naming a winner.

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