Gemini 3 Pro Image vs Gemini 3.5 Flash
Gemini 3 Pro Image (Google) versus Gemini 3.5 Flash (Google): API pricing, context window, capabilities and uptime, from the same data as each model page, at the WandAPI default channel price. Input costs 4 Credits / M for Gemini 3 Pro Image and 3 Credits / M for Gemini 3.5 Flash, so Gemini 3.5 Flash is 25% cheaper.
Gemini 3 Pro Imagegemini-3-pro-imageGemini 3.5 Flashgemini-3.5-flashSpecs side by side
| Item | Gemini 3 Pro Imagegemini-3-pro-image | Gemini 3.5 Flashgemini-3.5-flash |
|---|---|---|
| Input (prompt) · Credits / M | 4≈ $0.608 | 3≈ $0.456 |
| Output (completion) · Credits / M | 24≈ $3.65 | 18≈ $2.74 |
| Cache read · Credits / M | — | 0.3 |
| Context window | — | 1M |
| Max output | — | 64K |
| 7-day uptime | — | — |
| Latest probe latency | — | — |
| Measured throughput | 67.6 t/s | 165.2 t/s |
| Protocols | Gemini generateContent | Gemini generateContent / OpenAI Responses |
| Sample monthly cost (10M in + 2M out) | 88≈ $13.37 | 66≈ $10.03 |
Prices are the WandAPI default channel price in Credits (1 Credit = ¥1); green marks the better side. Uptime and latency come from WandAPI probes; a dash means the model is not probed yet.
Capabilities
FAQ
Which is cheaper, Gemini 3 Pro Image or Gemini 3.5 Flash?
At the WandAPI default channel price, Gemini 3 Pro Image input costs 4 Credits / M and Gemini 3.5 Flash input costs 3 Credits / M, so Gemini 3.5 Flash is 25% cheaper. Output and cache prices are in the specs table above.
Can I switch between Gemini 3 Pro Image and Gemini 3.5 Flash at any time?
Yes. WandAPI calls every model with the same API key; switching is just changing the model field in the request, and billing is split per model in one console.
How do the capabilities of Gemini 3 Pro Image and Gemini 3.5 Flash differ?
Only Gemini 3.5 Flash: Function Calling, Reasoning, Prompt Caching, Response Schema, Audio, Video, File Input. Every other capability is either supported by both or by neither; see the capability table above.
More comparisons
One API key for both Gemini 3 Pro Image and Gemini 3.5 Flash
Free credits on sign-up, pay as you go, no monthly fee.