Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs Gemma 4 26B A4B
Gemma 4 26B A4B costs 5.0x less per output token than Nano Banana 2 (Gemini 3.1 Flash Image Preview) ($0.60 vs $3.00 per million). Updated October 22, 2026; no benchmark has tested both models yet.
- Coding
- No data
- Overall
- No data
- Output $/M
- $3.00
- Coding
- No data
- Overall
- 54.7
- Output $/M
- $0.60
Nano Banana 2 (Gemini 3.1 Flash Image Preview) or Gemma 4 26B A4B: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Compare them on price, context and the boards below.
No benchmark has tested both yet. Nano Banana 2 (Gemini 3.1 Flash Image Preview) has results on Design Arena: images, Design Arena: graphic design and Design Arena: logos; Gemma 4 26B A4B on LMArena WebDev, AA Coding Index and SciCode. Compare them on price and context instead.
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
Intelligence
AA Intelligence Index
No call
Only Gemma 4 26B A4B has a AA Intelligence Index result, 16.7.
Directional only
Agentic work
AA Agentic Index
No call
Only Gemma 4 26B A4B has a AA Agentic Index result, 2.9.
Directional only
Image generation
Design Arena: images
No call
Only Nano Banana 2 (Gemini 3.1 Flash Image Preview) has a Design Arena: images result, 1269.
Directional only
Long documents
Listed context window
Gemma 4 26B A4B
Gemma 4 26B A4B takes 262K tokens against 66K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Gemma 4 26B A4B
Nano Banana 2 (Gemini 3.1 Flash Image Preview) $0.0020, Gemma 4 26B A4B $0.0004 per turn.
List prices
At a glance
- Coding index
- Nano Banana 2 (Gemini 3.1 Flash Image Preview) not benchmarked, Gemma 4 26B A4B not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- Nano Banana 2 (Gemini 3.1 Flash Image Preview) $3.00 against Gemma 4 26B A4B $0.60 per million output tokens, 5.0x apart.
- Context window
- Nano Banana 2 (Gemini 3.1 Flash Image Preview) takes 66K tokens, Gemma 4 26B A4B 262K.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
CodingDirectional onlySix of these boards feed the Vibe Coding Index10 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| LMArena WebDev | Not measured | 1360 | Only Gemma 4 26B A4B measured |
| AA Coding Index | Not measured | 39.3 | Only Gemma 4 26B A4B measured |
| SciCode | Not measured | 40.0% | Only Gemma 4 26B A4B measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 25.0% | Only Gemma 4 26B A4B measured |
| WeirdML | Not measured | 35.2% | Only Gemma 4 26B A4B measured |
| ALE-Bench | Not measured | 927.2 | Only Gemma 4 26B A4B measured |
| LMArena Text: coding | Not measured | 1446 | Only Gemma 4 26B A4B measured |
| LMArena Text: software and IT | Not measured | 1454 | Only Gemma 4 26B A4B measured |
| LMArena WebDev: React | Not measured | 1351 | Only Gemma 4 26B A4B measured |
| LMArena WebDev: HTML | Not measured | 1362 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 29 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 16.7 | Only Gemma 4 26B A4B measured |
| Epoch Capabilities Index | Not measured | 141.9 | Only Gemma 4 26B A4B measured |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| AA Agentic Index | Not measured | 2.9 | Only Gemma 4 26B A4B measured |
| τ²-Bench Telecom | Not measured | 43.6% | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 39 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index8 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | Not measured | 79.2% | Only Gemma 4 26B A4B measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 19.3% | Only Gemma 4 26B A4B measured |
| GPQA Diamond (Epoch AI run) | Not measured | 73.2% | Only Gemma 4 26B A4B measured |
| LMArena Text: hard prompts | Not measured | 1438 | Only Gemma 4 26B A4B measured |
| LMArena Text: expert | Not measured | 1447 | Only Gemma 4 26B A4B measured |
| LMArena Text: hard prompts in English | Not measured | 1448 | Only Gemma 4 26B A4B measured |
| LMArena Vision: diagrams | Not measured | 1264 | Only Gemma 4 26B A4B measured |
| LMArena Vision: homework | Not measured | 1293 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 14 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index3 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| OTIS Mock AIME | Not measured | 82.2% | Only Gemma 4 26B A4B measured |
| LMArena Text: math | Not measured | 1470 | Only Gemma 4 26B A4B measured |
| LMArena Text: mathematical work | Not measured | 1475 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 10 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index5 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| LMArena Text: science | Not measured | 1446 | Only Gemma 4 26B A4B measured |
| LMArena Text: medicine and healthcare | Not measured | 1428 | Only Gemma 4 26B A4B measured |
| LMArena Text: legal and government | Not measured | 1457 | Only Gemma 4 26B A4B measured |
| LMArena Text: business and finance | Not measured | 1429 | Only Gemma 4 26B A4B measured |
| FACTS Benchmark Suite | Not measured | 42.7% | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 13 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index25 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| IFBench | Not measured | 72.4% | Only Gemma 4 26B A4B measured |
| Long context reasoning (AA-LCR) | Not measured | 65.7% | Only Gemma 4 26B A4B measured |
| DTBench | Not measured | 74.9% | Only Gemma 4 26B A4B measured |
| LMCA | Not measured | 29.7% | Only Gemma 4 26B A4B measured |
| LMArena Text | Not measured | 1434 | Only Gemma 4 26B A4B measured |
| LMArena Text: instruction following | Not measured | 1420 | Only Gemma 4 26B A4B measured |
| LMArena Text: creative writing | Not measured | 1400 | Only Gemma 4 26B A4B measured |
| LMArena Vision | Not measured | 1260 | Only Gemma 4 26B A4B measured |
| LMArena Text: English | Not measured | 1444 | Only Gemma 4 26B A4B measured |
| LMArena Text: non-English | Not measured | 1421 | Only Gemma 4 26B A4B measured |
| LMArena Text: Chinese | Not measured | 1495 | Only Gemma 4 26B A4B measured |
| LMArena Text: French | Not measured | 1460 | Only Gemma 4 26B A4B measured |
| LMArena Text: Spanish | Not measured | 1415 | Only Gemma 4 26B A4B measured |
| LMArena Text: Russian | Not measured | 1434 | Only Gemma 4 26B A4B measured |
| LMArena Text: multi-turn | Not measured | 1441 | Only Gemma 4 26B A4B measured |
| LMArena Text: longer queries | Not measured | 1427 | Only Gemma 4 26B A4B measured |
| LMArena Text: writing and language | Not measured | 1405 | Only Gemma 4 26B A4B measured |
| LMArena Text: entertainment and media | Not measured | 1403 | Only Gemma 4 26B A4B measured |
| LMArena Vision: English | Not measured | 1256 | Only Gemma 4 26B A4B measured |
| LMArena Vision: Chinese | Not measured | 1312 | Only Gemma 4 26B A4B measured |
| LMArena Vision: reading text | Not measured | 1268 | Only Gemma 4 26B A4B measured |
| LMArena Vision: humor | Not measured | 1272 | Only Gemma 4 26B A4B measured |
| LMArena Vision: captioning | Not measured | 1297 | Only Gemma 4 26B A4B measured |
| LMArena Vision: recognizing things | Not measured | 1191 | Only Gemma 4 26B A4B measured |
| LMArena Vision: creative writing | Not measured | 1256 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 21 boards here | |||
Image generationDirectional onlyPublic boards, shown as published, kept out of the index3 boards measured
| Benchmark | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| Design Arena: images | 1269 | Not measured | Only Nano Banana 2 (Gemini 3.1 Flash Image Preview) measured |
| Design Arena: graphic design | 1249 | Not measured | Only Nano Banana 2 (Gemini 3.1 Flash Image Preview) measured |
| Design Arena: logos | 1248 | Not measured | Only Nano Banana 2 (Gemini 3.1 Flash Image Preview) measured |
| Neither model has a result on the other 2 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
Gemma 4 26B A4B costs less
Repository review
50K input + 3K output tokens
Gemma 4 26B A4B costs less
Agent loop
200K input + 10K output tokens
Gemma 4 26B A4B 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 | Google Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Google Gemma 4 26B A4B |
|---|---|---|
| Maker | ||
| Weights | No public weights listed | Open weights |
| Released | February 26, 2026 | April 3, 2026 |
| Context window | 66K | 262K |
| Input $/Mtok | $0.50 | $0.15 |
| Output $/Mtok | $3.00 | $0.60 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 1 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Nano Banana 2 (Gemini 3.1 Flash Image Preview) better than Gemma 4 26B A4B for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Compare them on price, context and the boards below.
Which is cheaper, Nano Banana 2 (Gemini 3.1 Flash Image Preview) or Gemma 4 26B A4B?
Nano Banana 2 (Gemini 3.1 Flash Image Preview) costs $0.50 per million input tokens and $3.00 per million output tokens; Gemma 4 26B A4B costs $0.15 and $0.60. Cost per solved task is known for neither of them.
Which has the bigger context window, Nano Banana 2 (Gemini 3.1 Flash Image Preview) or Gemma 4 26B A4B?
Gemma 4 26B A4B, with 262K tokens against 66K.
Has any benchmark tested both Nano Banana 2 (Gemini 3.1 Flash Image Preview) and Gemma 4 26B A4B?
No benchmark has tested both yet. Nano Banana 2 (Gemini 3.1 Flash Image Preview) has results on Design Arena: images, Design Arena: graphic design and Design Arena: logos; Gemma 4 26B A4B on LMArena WebDev, AA Coding Index and SciCode. Compare them on price and context instead. Data as of October 22, 2026.