Nano Banana 2 (Gemini 3.1 Flash Image) vs Grok
Which one should you pick? Here's the full breakdown.
Nano Banana 2 (Gemini 3.1 Flash Image)
Google's Gemini 3.1 Flash Image model -- the best-in-class text-in-image renderer, now the default across the Gemini app
Grok
xAI's irreverent chatbot with a direct line to X/Twitter -- real-time data meets unfiltered personality
| Category | Nano Banana 2 (Gemini 3.1 Flash Image) | Grok |
|---|---|---|
| Ease of Use | 9.5 | 7.0 |
| Output Quality | 9.5 | 7.5 |
| Value | 8.5 | 7.5 |
| Features | 8.0 | 8.0 |
| Overall | 8.9 | 7.5 |
Pricing Comparison
| Feature | Nano Banana 2 (Gemini 3.1 Flash Image) | Grok |
|---|---|---|
| Free Tier | Yes | Yes |
| Starting Price | $0 | $0 |
Benchmark Head-to-Head
Grok 4.20 benchmarks — Nano Banana 2 (Gemini 3.1 Flash Image) has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| MMLU | Knowledge across 57 subjects | 88.5% |
| GPQA Diamond | Graduate-level science questions | 85% |
| HumanEval | Python code generation | 90% |
| Humanity's Last Exam | Frontier difficulty questions | 50.7% |
Which Should You Pick?
Pick Nano Banana 2 (Gemini 3.1 Flash Image) if...
- ✓Higher output quality (9.5 vs 7.5)
- ✓Easier to use (9.5 vs 7)
- ✓Better value for money (8.5/10)
Designers, marketers, and content creators who need readable text in images (social posts, ad creative, book covers, infographics, event flyers) and who are already using or willing to pay for Gemini. If any part of your commercial design work requires typography to look right, Nano Banana 2 is the 2026 leader.
Visit Nano Banana 2 (Gemini 3.1 Flash Image)Pick Grok if...
People who live on X/Twitter and want an AI that can tap into that data in real-time. Also good for users who find mainstream chatbots too sanitized and want something with more personality.
Visit GrokOur Verdict
Nano Banana 2 (Gemini 3.1 Flash Image) is the clear winner here with 8.9/10 vs 7.5/10. Grok isn't bad, but Nano Banana 2 (Gemini 3.1 Flash Image) outperforms it across the board. Pick Grok only if people who live on x/twitter and want an ai that can tap into that data in real-time.