DeepSeek V4 Pro vs DeepSeek V4.1 Flash

DeepSeek V4 Pro (DeepSeek) versus DeepSeek V4.1 Flash (DeepSeek): API pricing, context window, capabilities and uptime, from the same data as each model page, at the SoleAPI default channel price. Input costs 2.93 Credits / M for DeepSeek V4 Pro and 0.65 Credits / M for DeepSeek V4.1 Flash, so DeepSeek V4.1 Flash is 78% cheaper. Context windows are 1M and 1M.

DeepSeek V4 Prodeepseek-v4-pro
DeepSeek
Input (prompt)
2.93Credits / M
≈ $0.444
Output (completion)
8.78Credits / M
≈ $1.33
1M context · 384K output35% off
DeepSeek V4 Pro details
DeepSeek V4.1 Flashdeepseek-v4.1-flash
DeepSeek
Input (prompt)
0.65Credits / M
≈ $0.0987
Output (completion)
2.6Credits / M
≈ $0.395
1M context · 384K output35% off
DeepSeek V4.1 Flash details
Lower input price
DeepSeek V4.1 Flash
78% cheaper
More exclusive capabilities
DeepSeek V4.1 Flash
Vision

Specs side by side

Item
DeepSeek V4 Prodeepseek-v4-pro
DeepSeek V4.1 Flashdeepseek-v4.1-flash
Input (prompt) · Credits / M2.93≈ $0.4440.65≈ $0.0987
Output (completion) · Credits / M8.78≈ $1.332.6≈ $0.395
Cache read · Credits / M0.09750.013
Context window1M1M
Max output384K384K
7-day uptime99.0%99.0%
Latest probe latency2.6s926ms
Measured throughput68.9 t/s108.5 t/s
ProtocolsAnthropic Messages / OpenAI ResponsesAnthropic Messages / OpenAI Responses
Sample monthly cost (10M in + 2M out)46.8≈ $7.1011.7≈ $1.78

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

CapabilityDeepSeek V4 ProDeepSeek V4.1 Flash
Function Calling
Reasoning
Prompt Caching
Response Schema
Streaming
Vision
Audio
Video
File Input
Web Search
Realtime
Session
Media
Multipart Form
Binary Response

FAQ

Which is cheaper, DeepSeek V4 Pro or DeepSeek V4.1 Flash?

At the SoleAPI default channel price, DeepSeek V4 Pro input costs 2.93 Credits / M and DeepSeek V4.1 Flash input costs 0.65 Credits / M, so DeepSeek V4.1 Flash is 78% cheaper. Output and cache prices are in the specs table above.

Which has the larger context window, DeepSeek V4 Pro or DeepSeek V4.1 Flash?

DeepSeek V4 Pro offers 1M tokens, DeepSeek V4.1 Flash offers 1M tokens.

Can I switch between DeepSeek V4 Pro and DeepSeek V4.1 Flash 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 DeepSeek V4 Pro and DeepSeek V4.1 Flash differ?

Only DeepSeek V4.1 Flash: Vision. Every other capability is either supported by both or by neither; see the capability table above.

More comparisons

DeepSeek V4 Pro vs DeepSeek V4 FlashDeepSeek V4.1 Flash vs DeepSeek V4 Flash

One API key for both DeepSeek V4 Pro and DeepSeek V4.1 Flash

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

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