Gemini 3 Pro Image vs Gemini 3.8 Flash TTS

Gemini 3 Pro Image (Google) versus Gemini 3.8 Flash TTS (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 1 Credits / M for Gemini 3.8 Flash TTS, so Gemini 3.8 Flash TTS is 75% cheaper.

Gemini 3 Pro Imagegemini-3-pro-image
Google
Input (prompt)
4Credits / M
≈ $0.608
Output (completion)
24Credits / M
≈ $3.65
— context · — output70% off
Gemini 3 Pro Image details
Gemini 3.8 Flash TTSgemini-3.8-flash-tts
Google
Input (prompt)
1Credits / M
≈ $0.152
Output (completion)
—Credits / M
8K context · 16K output70% off
Gemini 3.8 Flash TTS details
Lower input price
Gemini 3.8 Flash TTS
75% cheaper
More exclusive capabilities
Gemini 3 Pro Image
Vision, Web Search

Specs side by side

Item
Gemini 3 Pro Imagegemini-3-pro-image
Gemini 3.8 Flash TTSgemini-3.8-flash-tts
Input (prompt) · Credits / M4≈ $0.6081≈ $0.152
Output (completion) · Credits / M24≈ $3.65—
Cache read · Credits / M——
Context window—8K
Max output—16K
7-day uptime——
Latest probe latency——
Measured throughput67.6 t/s—
ProtocolsGemini generateContentGemini generateContent
Sample monthly cost (10M in + 2M out)88≈ $13.37—

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

CapabilityGemini 3 Pro ImageGemini 3.8 Flash TTS
Streaming
Vision
Audio
Web Search
Function Calling
Reasoning
Prompt Caching
Response Schema
Video
File Input
Realtime
Session
Media
Multipart Form
Binary Response

FAQ

Which is cheaper, Gemini 3 Pro Image or Gemini 3.8 Flash TTS?

At the WandAPI default channel price, Gemini 3 Pro Image input costs 4 Credits / M and Gemini 3.8 Flash TTS input costs 1 Credits / M, so Gemini 3.8 Flash TTS is 75% cheaper. Output and cache prices are in the specs table above.

Can I switch between Gemini 3 Pro Image and Gemini 3.8 Flash TTS 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 3.8 Flash TTS differ?

Only Gemini 3 Pro Image: Vision, Web Search. Only Gemini 3.8 Flash TTS: Audio. 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 3.8 Flash TTS

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

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