DeepSeek V3 0324 vs Gemini 3.1 Flash Lite Preview
Updated October 21, 2026. 10 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
Decision reading
Pick DeepSeek V3 0324 for coding: it scores 42.0 on the Vibe Coding Index against 8.1 for Gemini 3.1 Flash Lite Preview.
Pick Gemini 3.1 Flash Lite Preview when the context window is larger, 1.05M against 164K tokens, or when what matters is AA Coding Index or LiveCodeBench (Vals AI), where it leads.
- Shared results
- 10
- DeepSeek V3 0324 only
- 25
- Gemini 3.1 Flash Lite Preview only
- 67
- Like-for-like categories
- 6 of 9
Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.
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, four public coding benchmarks
DeepSeek V3 0324
DeepSeek V3 0324 scores 42.0 against 8.1.
One benchmark behind each score
Intelligence
AA Intelligence Index
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview leads, 15.6 against 9.7.
Same board, both measured
Agentic work
AA Agentic Index
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview leads, 1.6 against 0.8.
Same board, both measured
Reasoning
GPQA Diamond
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview leads, 81.1% against 61.6%.
Same board, both measured
Math
AIME
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview leads, 83.3% against 52.2%.
Same board, both measured
Knowledge
MMLU Pro
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview leads, 86.2% against 79.5%.
Same board, both measured
Web design
Design Arena: websites
No call
Only Gemini 3.1 Flash Lite Preview has a Design Arena: websites result, 1083.
Directional only
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
DeepSeek V3 0324
DeepSeek V3 0324 $0.0009, 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
- DeepSeek V3 0324 42.0 from 1 benchmark, Gemini 3.1 Flash Lite Preview 8.1 from 1 benchmark.
- Widest category
- Math, 31.1 points apart on average over 1 shared benchmark.
- Widest single gap
- AIME: DeepSeek V3 0324 52.2% against Gemini 3.1 Flash Lite Preview 83.3%, 31.1 points apart on a 0 to 100 scale.
- Output price
- DeepSeek V3 0324 $1.14 against Gemini 3.1 Flash Lite Preview $1.50 per million output tokens, 1.3x apart.
- Context window
- DeepSeek V3 0324 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 | DeepSeek V3 0324 | Bars | Gemini 3.1 Flash Lite Preview | Ties |
|---|---|---|---|---|
| Coding | 0 | 2 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 0 | 1 | ||
| Reasoning | 0 | 1 | ||
| Math | 0 | 1 | ||
| Knowledge | 0 | 4 | ||
| All shared boards | 0 | 10 |
CodingLike-for-likeFour of these boards feed the Vibe Coding Index02
| Benchmark | DeepSeek V3 0324 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| SWE-bench Verified | 42.0% | Not measured | Only DeepSeek V3 0324 measured |
| LMArena WebDev | Not measured | 1257 | Only Gemini 3.1 Flash Lite Preview measured |
| AA Coding Index | 21.2 | 34.7 | Gemini 3.1 Flash Lite Preview |
| LiveCodeBench (Vals AI) | 65.5% | 80.1% | Gemini 3.1 Flash Lite Preview |
| 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) | 40.5% | Not measured | Only DeepSeek V3 0324 measured |
| SciCode | 39.0% | Not measured | Only DeepSeek V3 0324 measured |
| Terminal-Bench Hard (Artificial Analysis run) | 15.2% | Not measured | Only DeepSeek V3 0324 measured |
| WeirdML | 36.1% | Not measured | Only DeepSeek V3 0324 measured |
| ALE-Bench | Not measured | 797.7 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: coding | Not measured | 1400 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: software and IT | Not measured | 1413 | Only Gemini 3.1 Flash Lite Preview measured |
| 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 |
| Neither model has a result on the other 19 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | DeepSeek V3 0324 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| AA Intelligence Index | 9.7 | 15.6 | Gemini 3.1 Flash Lite Preview |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | DeepSeek V3 0324 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| AA Agentic Index | 0.8 | 1.6 | Gemini 3.1 Flash Lite Preview |
| 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 | 47.1% | Not measured | Only DeepSeek V3 0324 measured |
| METR time horizons | 49.6% | Not measured | Only DeepSeek V3 0324 measured |
| Neither model has a result on the other 32 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | DeepSeek V3 0324 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| GPQA Diamond | 61.6% | 81.1% | Gemini 3.1 Flash Lite Preview |
| MMMU Pro (Vals AI) | Not measured | 82.5% | Only Gemini 3.1 Flash Lite Preview measured |
| GPQA Diamond (Artificial Analysis run) | 65.5% | Not measured | Only DeepSeek V3 0324 measured |
| Humanity's Last Exam (Artificial Analysis run) | 4.7% | Not measured | Only DeepSeek V3 0324 measured |
| GPQA Diamond (Epoch AI run) | 67.6% | Not measured | Only DeepSeek V3 0324 measured |
| SimpleBench | 27.2% | Not measured | Only DeepSeek V3 0324 measured |
| LMArena Text: hard prompts | Not measured | 1407 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: expert | Not measured | 1398 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: hard prompts in English | Not measured | 1403 | Only Gemini 3.1 Flash Lite Preview measured |
| 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 10 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | DeepSeek V3 0324 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| AIME | 52.2% | 83.3% | Gemini 3.1 Flash Lite Preview |
| MATH 500 (Vals AI) | 88.6% | Not measured | Only DeepSeek V3 0324 measured |
| MGSM (Vals AI) | 91.7% | Not measured | Only DeepSeek V3 0324 measured |
| AA Math Index | 41.0 | Not measured | Only DeepSeek V3 0324 measured |
| AIME 2025 (Artificial Analysis run) | 41.0% | Not measured | Only DeepSeek V3 0324 measured |
| OTIS Mock AIME | 37.8% | Not measured | Only DeepSeek V3 0324 measured |
| MATH level 5 | 75.5% | Not measured | Only DeepSeek V3 0324 measured |
| LMArena Text: math | Not measured | 1428 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: mathematical work | Not measured | 1417 | Only Gemini 3.1 Flash Lite Preview measured |
| Neither model has a result on the other 4 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
| Benchmark | DeepSeek V3 0324 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| MMLU Pro | 79.5% | 86.2% | Gemini 3.1 Flash Lite Preview |
| LegalBench (Vals AI) | 77.7% | 83.8% | Gemini 3.1 Flash Lite Preview |
| CaseLaw (Vals AI) | Not measured | 55.0% | Only Gemini 3.1 Flash Lite Preview measured |
| CorpFin (Vals AI) | 54.7% | 59.4% | Gemini 3.1 Flash Lite Preview |
| TaxEval (Vals AI) | 71.1% | 71.8% | Gemini 3.1 Flash Lite Preview |
| MortgageTax (Vals AI) | Not measured | 68.0% | Only Gemini 3.1 Flash Lite Preview measured |
| MedQA (Vals AI) | 82.0% | Not measured | Only DeepSeek V3 0324 measured |
| MedCode (Vals AI) | Not measured | 47.6% | Only Gemini 3.1 Flash Lite Preview measured |
| MMLU Pro (Artificial Analysis run) | 81.9% | Not measured | Only DeepSeek V3 0324 measured |
| LMArena Text: science | Not measured | 1425 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: medicine and healthcare | Not measured | 1428 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: legal and government | Not measured | 1418 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: business and finance | Not measured | 1389 | Only Gemini 3.1 Flash Lite Preview measured |
| Neither model has a result on the other 4 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | DeepSeek V3 0324 | Gemini 3.1 Flash Lite Preview | Leader |
|---|---|---|---|
| Design Arena: websites | Not measured | 1083 | Only Gemini 3.1 Flash Lite Preview measured |
| Design Arena: UI components | Not measured | 1071 | Only Gemini 3.1 Flash Lite Preview measured |
| Design Arena: game dev | Not measured | 1029 | Only Gemini 3.1 Flash Lite Preview measured |
| Design Arena: data viz | Not measured | 1045 | Only Gemini 3.1 Flash Lite Preview measured |
| Design Arena: 3D | Not measured | 1048 | Only Gemini 3.1 Flash Lite Preview measured |
| Design Arena: all code categories | Not measured | 1072 | Only Gemini 3.1 Flash Lite Preview measured |
| Design Arena: SVG | Not measured | 1052 | Only Gemini 3.1 Flash Lite Preview measured |
| Design Arena: ASCII art | Not measured | 1166 | Only Gemini 3.1 Flash Lite Preview measured |
| Neither model has a result on the other 1 board here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index34 boards, none shared
| Benchmark | DeepSeek V3 0324 | 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 | 41.0% | Not measured | Only DeepSeek V3 0324 measured |
| Long context reasoning (AA-LCR) | 40.7% | Not measured | Only DeepSeek V3 0324 measured |
| DTBench | 64.8% | Not measured | Only DeepSeek V3 0324 measured |
| LMCA | 15.5% | Not measured | Only DeepSeek V3 0324 measured |
| Fiction.LiveBench | 50.0% | Not measured | Only DeepSeek V3 0324 measured |
| Creative writing (Lech Mazur) | 77.0% | Not measured | Only DeepSeek V3 0324 measured |
| LMArena Text | Not measured | 1416 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: instruction following | Not measured | 1377 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: creative writing | Not measured | 1401 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Vision | Not measured | 1240 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: English | Not measured | 1414 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: non-English | Not measured | 1410 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: Chinese | Not measured | 1460 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: German | Not measured | 1430 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: Japanese | Not measured | 1413 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: Korean | Not measured | 1392 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: French | Not measured | 1424 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: Spanish | Not measured | 1421 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: Russian | Not measured | 1420 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: Polish | Not measured | 1443 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: multi-turn | Not measured | 1417 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: longer queries | Not measured | 1394 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: writing and language | Not measured | 1408 | Only Gemini 3.1 Flash Lite Preview measured |
| LMArena Text: entertainment and media | Not measured | 1386 | Only Gemini 3.1 Flash Lite Preview measured |
| 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 12 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | DeepSeek V3 0324 | 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
DeepSeek V3 0324 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 V3 0324 | Google Gemini 3.1 Flash Lite Preview |
|---|---|---|
| Maker | DeepSeek | |
| Weights | Open weights | No public weights listed |
| Released | March 24, 2025 | March 3, 2026 |
| Context window | 164K | 1.05M |
| Input $/Mtok | $0.29 | $0.25 |
| Output $/Mtok | $1.14 | $1.50 |
| Coding index | 42.0 | 8.1 |
| Independent measurements behind it | 1 | 1 |
| Cost per solved task | Not computable | $0.18 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is DeepSeek V3 0324 better than Gemini 3.1 Flash Lite Preview for coding?
Pick DeepSeek V3 0324 for coding: it scores 42.0 on the Vibe Coding Index against 8.1 for Gemini 3.1 Flash Lite Preview. Pick Gemini 3.1 Flash Lite Preview when the context window is larger, 1.05M against 164K tokens, or when what matters is AA Coding Index or LiveCodeBench (Vals AI), where it leads.
Which is cheaper, DeepSeek V3 0324 or Gemini 3.1 Flash Lite Preview?
DeepSeek V3 0324 costs $0.29 per million input tokens and $1.14 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, DeepSeek V3 0324 or Gemini 3.1 Flash Lite Preview?
Gemini 3.1 Flash Lite Preview, with 1.05M tokens against 164K.
How many benchmarks is the DeepSeek V3 0324 vs Gemini 3.1 Flash Lite Preview comparison based on?
10 benchmarks have a result for both models as of October 21, 2026. DeepSeek V3 0324's coding index rests on 1 independent benchmark and Gemini 3.1 Flash Lite Preview's on 1. Where only one model has a result, the page says so instead of naming a winner.