Data verified: Aug 15, 2026, 11:13 AM · Prices sourced from official provider pages. Verify current rates before production use.
Data verified: Aug 15, 2026, 11:13 AM · Prices sourced from official provider pages. Verify current rates before production use.
Price, context and performance head to head. Data synced from the provider catalog.
Cheaper
Nano Banana 2 (Gemini 3.1 Flash Image)
Larger context
GLM 5.1
Faster
Nano Banana 2 (Gemini 3.1 Flash Image)
Higher quality
GLM 5.1
| Feature | Nano Banana 2 (Gemini 3.1 Flash Image) | GLM 5.1 |
|---|---|---|
| Provider | Z.AI | |
| Tier | Budget | Flagship |
| Input per 1M tokens | $0.5 | $0.966 |
| Output per 1M tokens | $3 | $3.036 |
| Cached input per 1M | $0.5 | $0.1794 |
| Context window | 131.1K | 204.8K |
| Intelligence index | — | 41/100 |
| Coding index | — | 56/100 |
| Agentic index | — | 31/100 |
| GPQA Diamond | — | 1 |
| Tau-bench (airline) | — | 1 |
| Speed | Fast | Standard |
| Vision (image input) | Yes | No |
| Function calling | No | Yes |
| Batch API | No | No |
Enter how many requests per day you send with an average prompt (1K input + 1K output) and compare the monthly cost of both models.
Nano Banana 2 (Gemini 3.1 Flash Image) saves $1.51/mo vs GLM 5.1
Want us to build it for you?
We integrate Nano Banana 2 (Gemini 3.1 Flash Image) or GLM 5.1 into your product with caching, observability and continuous evaluation — typically 40-80% cheaper than the obvious first pick.
Other combinations developers frequently compare in 2026.
What people ask us when comparing GPT, Claude, Gemini and the rest.
A token is the unit an AI model processes: usually between half a word and a full word. Rule of thumb: 1,000 tokens ≈ 750 English words. A 20-word sentence is about 26 tokens; a 300-word email is around 400. Models charge for input tokens (your prompt) and output tokens (their answer) separately.