Gemini 2.5 Pro vs Gemini 3.1 Flash Lite Image
Gemini 2.5 Pro (Google) versus Gemini 3.1 Flash Lite Image (Google): API pricing, context window, capabilities and uptime, from the same data as each model page, at the SoleAPI default channel price. Input costs 2 Credits / M for Gemini 2.5 Pro and 0.4 Credits / M for Gemini 3.1 Flash Lite Image, so Gemini 3.1 Flash Lite Image is 80% cheaper. Context windows are 1M and 64K.
Specs side by side
| Item | Gemini 2.5 Progemini-2.5-pro | Gemini 3.1 Flash Lite Imagegemini-3.1-flash-lite-image |
|---|---|---|
| Input (prompt) · Credits / M | 2≈ $0.302 | 0.4≈ $0.0604 |
| Output (completion) · Credits / M | 16≈ $2.41 | 2.4≈ $0.362 |
| Cache read · Credits / M | 0.2 | — |
| Context window | 1M | 64K |
| Max output | 64K | 4K |
| 7-day uptime | — | — |
| Latest probe latency | — | — |
| Measured throughput | 76.9 t/s | — |
| Protocols | Anthropic Messages / Gemini generateContent | Anthropic Messages / Gemini generateContent |
| Sample monthly cost (10M in + 2M out) | 52≈ $7.85 | 8.8≈ $1.33 |
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 is cheaper, Gemini 2.5 Pro or Gemini 3.1 Flash Lite Image?
At the SoleAPI default channel price, Gemini 2.5 Pro input costs 2 Credits / M and Gemini 3.1 Flash Lite Image input costs 0.4 Credits / M, so Gemini 3.1 Flash Lite Image is 80% cheaper. Output and cache prices are in the specs table above.
Which has the larger context window, Gemini 2.5 Pro or Gemini 3.1 Flash Lite Image?
Gemini 2.5 Pro offers 1M tokens, Gemini 3.1 Flash Lite Image offers 64K tokens.
Can I switch between Gemini 2.5 Pro and Gemini 3.1 Flash Lite Image 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 2.5 Pro and Gemini 3.1 Flash Lite Image differ?
Only Gemini 2.5 Pro: Prompt Caching, Response Schema, Audio, File Input, Web Search. Every other capability is either supported by both or by neither; see the capability table above.
More comparisons
One API key for both Gemini 2.5 Pro and Gemini 3.1 Flash Lite Image
Free credits on sign-up, pay as you go, no monthly fee.