Gemini 3 Flash Preview vs Gemini 3 Pro Image

Gemini 3 Flash Preview (Google) versus Gemini 3 Pro 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 0.8 Credits / M for Gemini 3 Flash Preview and 3.2 Credits / M for Gemini 3 Pro Image, so Gemini 3 Flash Preview is 75% cheaper. Context windows are 1M and 64K.

Gemini 3 Flash Previewgemini-3-flash-preview
Google
Input (prompt)
0.8Credits / M
≈ $0.121
Output (completion)
4.8Credits / M
≈ $0.727
1M context · 64K output76% off
Gemini 3 Flash Preview details
Gemini 3 Pro Imagegemini-3-pro-image
Google
Input (prompt)
3.2Credits / M
≈ $0.485
Output (completion)
19.2Credits / M
≈ $2.91
64K context · 32K output76% off
Gemini 3 Pro Image details
Lower input price
Gemini 3 Flash Preview
75% cheaper
Larger context
Gemini 3 Flash Preview
1M · 64K
More exclusive capabilities
Gemini 3 Flash Preview
Function Calling, Prompt Caching, Response Schema

Specs side by side

Item
Gemini 3 Flash Previewgemini-3-flash-preview
Gemini 3 Pro Imagegemini-3-pro-image
Input (prompt) · Credits / M0.8≈ $0.1213.2≈ $0.485
Output (completion) · Credits / M4.8≈ $0.72719.2≈ $2.91
Cache read · Credits / M0.08—
Context window1M64K
Max output64K32K
7-day uptime97.7%—
Latest probe latency4.46 s—
Measured throughput70.8 t/s22.6 t/s
ProtocolsAnthropic Messages / Gemini generateContentAnthropic Messages / Gemini generateContent
Sample monthly cost (10M in + 2M out)17.6≈ $2.6770.4≈ $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

CapabilityGemini 3 Flash PreviewGemini 3 Pro Image
Vision
Reasoning
Streaming
Web Search
Function Calling
Prompt Caching
Response Schema
Audio
Video
File Input
Realtime
Session
Media
Multipart Form
Binary Response

FAQ

Which is cheaper, Gemini 3 Flash Preview or Gemini 3 Pro Image?

At the SoleAPI default channel price, Gemini 3 Flash Preview input costs 0.8 Credits / M and Gemini 3 Pro Image input costs 3.2 Credits / M, so Gemini 3 Flash Preview is 75% cheaper. Output and cache prices are in the specs table above.

Which has the larger context window, Gemini 3 Flash Preview or Gemini 3 Pro Image?

Gemini 3 Flash Preview offers 1M tokens, Gemini 3 Pro Image offers 64K tokens.

Can I switch between Gemini 3 Flash Preview and Gemini 3 Pro 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 3 Flash Preview and Gemini 3 Pro Image differ?

Only Gemini 3 Flash 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 Flash Preview and Gemini 3 Pro Image

Free credits on sign-up, pay as you go, no monthly fee.

Get an API Key