Gemini 3 Pro Image vs Gemini 3.1 Pro Preview
Gemini 3 Pro Image (Google) versus Gemini 3.1 Pro Preview (Google): API pricing, context window, capabilities and uptime, from the same data as each model page, at the SoleAPI default channel price. Input costs 3.2 Credits / M for Gemini 3 Pro Image and 3.2 Credits / M for Gemini 3.1 Pro Preview. Context windows are 64K and 1M.
Gemini 3 Pro Imagegemini-3-pro-imageGemini 3.1 Pro Previewgemini-3.1-pro-previewSpecs side by side
| Item | Gemini 3 Pro Imagegemini-3-pro-image | Gemini 3.1 Pro Previewgemini-3.1-pro-preview |
|---|---|---|
| Input (prompt) · Credits / M | 3.2≈ $0.485 | 3.2≈ $0.485 |
| Output (completion) · Credits / M | 19.2≈ $2.91 | 19.2≈ $2.91 |
| Cache read · Credits / M | — | 0.32 |
| Context window | 64K | 1M |
| Max output | 32K | 64K |
| 7-day uptime | — | 90.1% |
| Latest probe latency | — | 3.07 s |
| Measured throughput | 22.6 t/s | 76.7 t/s |
| Protocols | Anthropic Messages / Gemini generateContent | Anthropic Messages / Gemini generateContent |
| Sample monthly cost (10M in + 2M out) | 70.4≈ $10.66 | 70.4≈ $10.66 |
Prices are the SoleAPI default channel price in Credits (1 Credit = ¥1); green marks the better side. Uptime and latency come from SoleAPI probes; a dash means the model is not probed yet.
Capabilities
FAQ
Which has the larger context window, Gemini 3 Pro Image or Gemini 3.1 Pro Preview?
Gemini 3 Pro Image offers 64K tokens, Gemini 3.1 Pro Preview offers 1M tokens.
Can I switch between Gemini 3 Pro Image and Gemini 3.1 Pro Preview at any time?
Yes. SoleAPI 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 3.1 Pro Preview differ?
Only Gemini 3.1 Pro Preview: Function Calling, 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 3.1 Pro Preview
Free credits on sign-up, pay as you go, no monthly fee.