Gemini 4 Argon vs Nano Banana 2 (Gemini 3.1 Flash Image Preview)
| Benchmark | Gemini 4 Argon | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|
| Humanity's Last Exam | 57.1 | — |
| Terminal-Bench 4.0 | 57.1 | — |
| AutomationBench-AA | 77.5 | — |
| Arena Text · creative writing | 1,516 | — |
Specs
| Spec | Gemini 4 Argon | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|
| Input, per 1M | !$2 | $0.50 |
| Output, per 1M | !$10 | $3 |
| Cost per task? | $1.99 | — |
| Speed, tok/s | 84 | — |
| Context | 1M | 66K |
| Weights | Closed | Not verified |
| Released | Oct 2026 | Feb 2026 |
| See images | ✓ | ✓ |
| Read PDFs | ✓ | ? |
| Hear audio | ✓ | — |
| Watch video | ✓ | — |
| Call tools | ✓ | — |
| Force a tool call | Partial | ? |
| Return strict JSON | ✓ | ✓ |
| Search the web | ✓ | ? |
| Run code | ✓ | ? |
| Use a computer | ? | ? |
What breaks when you switch
Gemini 4 Argon → Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Context: 1M → 66K
Nano Banana 2 (Gemini 3.1 Flash Image Preview) → Gemini 4 Argon
Synchronous output stops at 65,536›
With background false, output limits above 65,536 tokens return HTTP 400; stay at or below that limit.
Sampling parameters are ignored›
temperature, top_p and top_k are ignored; remove them from requests.
No explicit caching›
Explicit caching is unavailable; omit explicit cache requests.