R1 0528 vs Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview leads R1 0528 on the Artificial Analysis Intelligence Index, 15.6 to 13.1, and Gemini 3.1 Flash Lite Preview costs 1.5x less per output token ($1.50 vs $2.18 per million). Updated October 22, 2026; 37 benchmarks have a result for both.
R1 0528 or Gemini 3.1 Flash Lite Preview: which to pick
Only Gemini 3.1 Flash Lite Preview has a coding score, 22.7 on the Vibe Coding Index; R1 0528 has none, so the two cannot be ranked on coding.
Pick R1 0528 for work measured by ALE-Bench or LMArena Text: coding, where it leads.
- Shared results
- 37
- R1 0528 only
- 23
- Gemini 3.1 Flash Lite Preview only
- 42
- 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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Only Gemini 3.1 Flash Lite Preview has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview leads, 15.6 against 13.1.
Same board, both measured
Agentic work
AA Agentic Index
No call
Only Gemini 3.1 Flash Lite Preview has a AA Agentic Index result, 1.6.
Directional only
Reasoning
GPQA Diamond
No call
Only Gemini 3.1 Flash Lite Preview has a GPQA Diamond result, 81.1%.
Directional only
Math
AIME
No call
Only Gemini 3.1 Flash Lite Preview has a AIME result, 83.3%.
Directional only
Knowledge
MMLU Pro
No call
Only Gemini 3.1 Flash Lite Preview has a MMLU Pro result, 86.2%.
Directional only
Web design
Design Arena: websites
R1 0528
R1 0528 leads, 1149 against 1082.
Same board, both measured
Long documents
Listed context window
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview takes 1.05M tokens against 164K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Gemini 3.1 Flash Lite Preview
R1 0528 $0.0016, Gemini 3.1 Flash Lite Preview $0.0010 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Gemini 3.1 Flash Lite Preview has the number, $0.18.
Directional only
At a glance
- Coding index
- R1 0528 not benchmarked, Gemini 3.1 Flash Lite Preview 22.7 from 3 benchmarks.
- Widest category
- Web design, 8.0 points apart on average over 7 shared benchmarks.
- Widest single gap
- Design Arena: data viz: R1 0528 1182 against Gemini 3.1 Flash Lite Preview 1045, 17.1 points apart on a 0 to 100 scale.
- Output price
- R1 0528 $2.18 against Gemini 3.1 Flash Lite Preview $1.50 per million output tokens, 1.5x apart.
- Context window
- R1 0528 takes 164K tokens, Gemini 3.1 Flash Lite Preview 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.
| Category | R1 0528 | Bars | Gemini 3.1 Flash Lite Preview | Ties |
|---|---|---|---|---|
| Coding | 3 | 0 | ||
| Intelligence | 0 | 1 | ||
| Reasoning | 2 | 1 | ||
| Math | 0 | 2 | ||
| Knowledge | 4 | 0 | ||
| Web design | 6 | 1 | ||
| General | 7 | 10 | ||
| All shared boards | 22 | 15 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| Aider polyglot | 71.4% | Not measured | Only R1 0528 measured |
| LMArena WebDev | Not measured | 1257 | Only Gemini 3.1 Flash Lite Preview measured |
| AA Coding Index | Not measured | 34.7 | Only Gemini 3.1 Flash Lite Preview measured |
| LiveCodeBench (Vals AI) | Not measured | 80.1% | Only Gemini 3.1 Flash Lite Preview measured |
| SWE-bench Verified (Vals AI) | Not measured | 62.8% | Only Gemini 3.1 Flash Lite Preview measured |
| Vibe Code Bench (Vals AI) | Not measured | 0.0% | Only Gemini 3.1 Flash Lite Preview measured |
| Code migration (Vals AI) | Not measured | 4.6% | Only Gemini 3.1 Flash Lite Preview measured |
| ProgramBench (Vals AI) | Not measured | 0.0% | Only Gemini 3.1 Flash Lite Preview measured |
| Terminal-Bench 2.1 (Vals AI) | Not measured | 34.1% | Only Gemini 3.1 Flash Lite Preview measured |
| LiveCodeBench (Artificial Analysis run) | 77.0% | Not measured | Only R1 0528 measured |
| Terminal-Bench Hard (Artificial Analysis run) | 15.9% | Not measured | Only R1 0528 measured |
| WeirdML | 41.6% | Not measured | Only R1 0528 measured |
| ALE-Bench | 804.1 | 797.7 | R1 0528 |
| LMArena Text: coding | 1427 | 1400 | R1 0528 |
| LMArena Text: software and IT | 1435 | 1413 | R1 0528 |
| LMArena WebDev: React | Not measured | 1245 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena WebDev: HTML | Not measured | 1276 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena WebDev: from an image | Not measured | 1336 | Only Gemini 3.1 Flash Lite Preview measured |
| SciCode | Not measured | 4.6% | Only Gemini 3.1 Flash Lite Preview measured |
| Neither model has a result on the other 20 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| AA Intelligence Index | 13.1 | 15.6 | Gemini 3.1 Flash Lite Preview |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| AA Agentic Index | Not measured | 1.6 | Only Gemini 3.1 Flash Lite Preview measured |
| Finance Agent (Vals AI) | Not measured | 30.0% | Only Gemini 3.1 Flash Lite Preview measured |
| Tax Agent Bench (Vals AI) | Not measured | 3.1% | Only Gemini 3.1 Flash Lite Preview measured |
| Legal Research Bench (Vals AI) | Not measured | 3.4% | Only Gemini 3.1 Flash Lite Preview measured |
| Excel Modeling Benchmark (Vals AI) | Not measured | 8.6% | Only Gemini 3.1 Flash Lite Preview measured |
| τ²-Bench Telecom | 36.5% | Not measured | Only R1 0528 measured |
| METR time horizons | 53.8% | Not measured | Only R1 0528 measured |
| DeepResearch Bench | 35.1% | Not measured | Only R1 0528 measured |
| BrowseComp-Plus | 16.4% | Not measured | Only 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 index21
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 81.1% | Only Gemini 3.1 Flash Lite Preview measured |
| MMMU Pro (Vals AI) | Not measured | 82.5% | Only Gemini 3.1 Flash Lite Preview measured |
| GPQA Diamond (Artificial Analysis run) | 81.3% | Not measured | Only R1 0528 measured |
| Humanity's Last Exam (Artificial Analysis run) | 15.8% | Not measured | Only R1 0528 measured |
| GPQA Diamond (Epoch AI run) | 76.3% | Not measured | Only R1 0528 measured |
| ARC-AGI | 21.2% | Not measured | Only R1 0528 measured |
| ARC-AGI-2 | 1.1% | Not measured | Only R1 0528 measured |
| SimpleBench | 40.8% | Not measured | Only R1 0528 measured |
| LMArena Text: hard prompts | 1415 | 1407 | R1 0528 |
| LMArena Text: expert | 1394 | 1398 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: hard prompts in English | 1422 | 1403 | R1 0528 |
| LMArena Vision: diagrams | Not measured | 1242 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision: homework | Not measured | 1271 | Only Gemini 3.1 Flash Lite Preview measured |
| Neither model has a result on the other 9 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| AIME | Not measured | 83.3% | Only Gemini 3.1 Flash Lite Preview measured |
| AA Math Index | 76.0 | Not measured | Only R1 0528 measured |
| AIME 2025 (Artificial Analysis run) | 76.0% | Not measured | Only R1 0528 measured |
| OTIS Mock AIME | 66.4% | Not measured | Only R1 0528 measured |
| MATH level 5 | 96.6% | Not measured | Only R1 0528 measured |
| LMArena Text: math | 1400 | 1428 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: mathematical work | 1415 | 1417 | Gemini 3.1 Flash Lite Preview |
| Neither model has a result on the other 6 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 86.2% | Only Gemini 3.1 Flash Lite Preview measured |
| LegalBench (Vals AI) | Not measured | 83.8% | Only Gemini 3.1 Flash Lite Preview measured |
| CaseLaw (Vals AI) | Not measured | 55.0% | Only Gemini 3.1 Flash Lite Preview measured |
| CorpFin (Vals AI) | Not measured | 59.4% | Only Gemini 3.1 Flash Lite Preview measured |
| TaxEval (Vals AI) | Not measured | 71.8% | Only Gemini 3.1 Flash Lite Preview measured |
| MortgageTax (Vals AI) | Not measured | 68.0% | Only Gemini 3.1 Flash Lite Preview measured |
| MedCode (Vals AI) | Not measured | 47.6% | Only Gemini 3.1 Flash Lite Preview measured |
| MMLU Pro (Artificial Analysis run) | 84.9% | Not measured | Only R1 0528 measured |
| LMArena Text: science | 1430 | 1425 | R1 0528 |
| LMArena Text: medicine and healthcare | 1445 | 1428 | R1 0528 |
| LMArena Text: legal and government | 1419 | 1418 | R1 0528 |
| LMArena Text: business and finance | 1402 | 1389 | R1 0528 |
| FACTS Benchmark Suite | Not measured | 51.4% | Only Gemini 3.1 Flash Lite Preview measured |
| Neither model has a result on the other 5 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index61
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| Design Arena: websites | 1149 | 1082 | R1 0528 |
| Design Arena: UI components | 1100 | 1069 | R1 0528 |
| Design Arena: game dev | 1097 | 1029 | R1 0528 |
| Design Arena: data viz | 1182 | 1045 | R1 0528 |
| Design Arena: 3D | 1110 | 1047 | R1 0528 |
| Design Arena: all code categories | 1138 | 1072 | R1 0528 |
| Design Arena: SVG | 1038 | 1052 | Gemini 3.1 Flash Lite Preview |
| Design Arena: ASCII art | Not measured | 1167 | Only Gemini 3.1 Flash Lite Preview measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index710
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| SAGE (Vals AI) | Not measured | 49.5% | Only Gemini 3.1 Flash Lite Preview measured |
| MedScribe (Vals AI) | Not measured | 63.9% | Only Gemini 3.1 Flash Lite Preview measured |
| Vals Multimodal Index | Not measured | 41.4% | Only Gemini 3.1 Flash Lite Preview measured |
| IFBench | 39.6% | Not measured | Only R1 0528 measured |
| Long context reasoning (AA-LCR) | 55.7% | Not measured | Only R1 0528 measured |
| Fiction.LiveBench | 75.0% | Not measured | Only R1 0528 measured |
| Creative writing (Lech Mazur) | 81.9% | Not measured | Only R1 0528 measured |
| LMArena Text | 1428 | 1416 | R1 0528 |
| LMArena Text: instruction following | 1382 | 1377 | R1 0528 |
| LMArena Text: creative writing | 1405 | 1401 | R1 0528 |
| LMArena Vision | Not measured | 1240 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: English | 1437 | 1414 | R1 0528 |
| LMArena Text: non-English | 1412 | 1410 | R1 0528 |
| LMArena Text: Chinese | 1442 | 1460 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: German | 1404 | 1430 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: Japanese | 1391 | 1413 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: Korean | 1360 | 1392 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: French | 1417 | 1424 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: Spanish | 1411 | 1421 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: Russian | 1423 | 1420 | R1 0528 |
| LMArena Text: Polish | 1428 | 1443 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: multi-turn | 1405 | 1417 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: longer queries | 1391 | 1394 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: writing and language | 1402 | 1408 | Gemini 3.1 Flash Lite Preview |
| LMArena Text: entertainment and media | 1400 | 1386 | R1 0528 |
| LMArena Vision: English | Not measured | 1232 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision: Chinese | Not measured | 1278 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision: reading text | Not measured | 1246 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision: humor | Not measured | 1266 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision: captioning | Not measured | 1259 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision: recognizing things | Not measured | 1308 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision: creative writing | Not measured | 1248 | Only Gemini 3.1 Flash Lite Preview 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
| Benchmark | R1 0528 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| 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 3.1 Flash Lite Preview costs less
Repository review
50K input + 3K output tokens
Gemini 3.1 Flash Lite Preview costs less
Agent loop
200K input + 10K output tokens
Gemini 3.1 Flash Lite Preview 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.
| Specification | DeepSeek R1 0528 | Google Gemini 3.1 Flash Lite Preview |
|---|---|---|
| Maker | DeepSeek | |
| Weights | Open weights | No public weights listed |
| Released | May 28, 2025 | March 3, 2026 |
| Context window | 164K | 1.05M |
| Input $/Mtok | $0.50 | $0.25 |
| Output $/Mtok | $2.18 | $1.50 |
| Coding index | Not benchmarked | 22.7 |
| Independent measurements behind it | 0 | 3 |
| Cost per solved task | Not computable | $0.18 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is R1 0528 better than Gemini 3.1 Flash Lite Preview for coding?
Only Gemini 3.1 Flash Lite Preview has a coding score, 22.7 on the Vibe Coding Index; R1 0528 has none, so the two cannot be ranked on coding. Pick R1 0528 for work measured by ALE-Bench or LMArena Text: coding, where it leads.
Which is cheaper, R1 0528 or Gemini 3.1 Flash Lite Preview?
R1 0528 costs $0.50 per million input tokens and $2.18 per million output tokens; Gemini 3.1 Flash Lite Preview costs $0.25 and $1.50. Cost per solved task is known for Gemini 3.1 Flash Lite Preview only.
Which has the bigger context window, R1 0528 or Gemini 3.1 Flash Lite Preview?
Gemini 3.1 Flash Lite Preview, with 1.05M tokens against 164K.
How many benchmarks is the R1 0528 vs Gemini 3.1 Flash Lite Preview comparison based on?
37 benchmarks have a result for both models as of October 22, 2026. R1 0528's coding index rests on 0 independent benchmarks and Gemini 3.1 Flash Lite Preview's on 3. Where only one model has a result, the page says so instead of naming a winner.