DeepSeek V3 vs Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)
Updated October 21, 2026. 0 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
- Coding
- No data
- Overall
- No data
- Output $/M
- $0.9594
- Coding
- No data
- Overall
- No data
- Output $/M
- $1.50
Decision reading
Neither model has a coding score yet, so the two cannot be ranked on coding.
DeepSeek V3 has the edge where output tokens cost 1.6x less, and where the context window is larger, 164K against 66K tokens.
- Shared results
- 0
- DeepSeek V3 only
- 13
- Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) only
- 5
- Like-for-like categories
- 0 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, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Web design
Design Arena: websites
No call
Only DeepSeek V3 has a Design Arena: websites result, 1120.
Directional only
Image generation
Design Arena: images
No call
Only Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) has a Design Arena: images result, 1239.
Directional only
Long documents
Listed context window
DeepSeek V3
DeepSeek V3 takes 164K tokens against 66K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
DeepSeek V3
DeepSeek V3 $0.0008, Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) $0.0010 per turn.
List prices
At a glance
- Coding index
- DeepSeek V3 not benchmarked, Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) not benchmarked.
- Widest category
- No category has a result for both models.
- Widest single gap
- No benchmark has a result for both models.
- Output price
- DeepSeek V3 $0.9594 against Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) $1.50 per million output tokens, 1.6x apart.
- Context window
- DeepSeek V3 takes 164K tokens, Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) 66K.
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.
CodingDirectional onlySix of these boards feed the Vibe Coding Index2 boards, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| Aider polyglot | 70.2% | Not measured | Only DeepSeek V3 measured |
| SWE-bench Lite | 30.7% | Not measured | Only DeepSeek V3 measured |
| Neither model has a result on the other 36 boards here | |||
IntelligenceNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| Neither model has a result on 2 boards here | |||
Agentic workNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| Neither model has a result on 39 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| GPQA Diamond (Epoch AI run) | 71.2% | Not measured | Only DeepSeek V3 measured |
| Neither model has a result on the other 20 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| OTIS Mock AIME | 48.9% | Not measured | Only DeepSeek V3 measured |
| Neither model has a result on the other 12 boards here | |||
KnowledgeNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| Neither model has a result on 17 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| Design Arena: websites | 1120 | Not measured | Only DeepSeek V3 measured |
| Design Arena: UI components | 1093 | Not measured | Only DeepSeek V3 measured |
| Design Arena: game dev | 1053 | Not measured | Only DeepSeek V3 measured |
| Design Arena: data viz | 1089 | Not measured | Only DeepSeek V3 measured |
| Design Arena: 3D | 1087 | Not measured | Only DeepSeek V3 measured |
| Design Arena: all code categories | 1108 | Not measured | Only DeepSeek V3 measured |
| Design Arena: SVG | 977 | Not measured | Only DeepSeek V3 measured |
| Neither model has a result on the other 2 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| DTBench | 62.7% | Not measured | Only DeepSeek V3 measured |
| LMCA | 15.2% | Not measured | Only DeepSeek V3 measured |
| Neither model has a result on the other 44 boards here | |||
Image generationDirectional onlyPublic boards, shown as published, kept out of the index5 boards, none shared
| Benchmark | DeepSeek V3 | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Leader |
|---|---|---|---|
| Design Arena: images | Not measured | 1239 | Only Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) measured |
| Design Arena: graphic design | Not measured | 1249 | Only Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) measured |
| Design Arena: logos | Not measured | 1214 | Only Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) measured |
| LMArena Text to Image | Not measured | 1250 | Only Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) measured |
| LMArena Image Edit | Not measured | 1313 | Only Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) measured |
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 costs less
Repository review
50K input + 3K output tokens
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) costs less
Agent loop
200K input + 10K output tokens
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) 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 | Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) |
|---|---|---|
| Maker | DeepSeek | |
| Weights | Open weights | No public weights listed |
| Released | December 26, 2024 | June 30, 2026 |
| Context window | 164K | 66K |
| Input $/Mtok | $0.2887 | $0.25 |
| Output $/Mtok | $0.9594 | $1.50 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is DeepSeek V3 better than Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. DeepSeek V3 has the edge where output tokens cost 1.6x less, and where the context window is larger, 164K against 66K tokens.
Which is cheaper, DeepSeek V3 or Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)?
DeepSeek V3 costs $0.2887 per million input tokens and $0.9594 per million output tokens; Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) costs $0.25 and $1.50. Cost per solved task is known for neither of them.
Which has the bigger context window, DeepSeek V3 or Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)?
DeepSeek V3, with 164K tokens against 66K.
How many benchmarks is the DeepSeek V3 vs Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) comparison based on?
0 benchmarks have a result for both models as of October 21, 2026. DeepSeek V3's coding index rests on 0 independent benchmarks and Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)'s on 0. Where only one model has a result, the page says so instead of naming a winner.