DeepSeek V4 Pro vs Gemini 3.1 Flash
Side-by-side API pricing comparison · DeepSeek vs Google
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DeepSeek V4 Pro is 114.6% cheaper on blended cost ($0.652 vs $1.40/Mtok)
DeepSeek V4 Pro
by DeepSeek
Current mid tierInput
$0.435/Mtok
Output
$0.870/Mtok
✓ Cheaper
| Blended avg | $0.652/Mtok |
|---|---|
| Cached input | $0.004/Mtok |
| Context | 1M tokens |
| Modality | text |
| Parameters | Proprietary |
| Released | Dec 1, 2025 |
Gemini 3.1 Flash
by Google
Current mid tierInput
$0.300/Mtok
Output
$2.50/Mtok
| Blended avg | $1.40/Mtok |
|---|---|
| Context | 1M tokens |
| Modality | text, image, audio, video |
| Parameters | Proprietary |
| Released | Nov 1, 2025 |
Cost at scale — 1M tokens (50/50 input/output)
| Volume | DeepSeek V4 Pro | Gemini 3.1 Flash | Savings |
|---|---|---|---|
| 1M tokens | $0.65 | $1.4 | $0.75 (53.6%) |
| 10M tokens | $6.53 | $14 | $7.48 (53.4%) |
| 100M tokens | $65.25 | $140 | $74.75 (53.4%) |
| 1000M tokens | $652.5 | $1400 | $747.5 (53.4%) |
Summary
DeepSeek V4 Pro by DeepSeek costs $0.435/Mtok input and $0.870/Mtok output, with a 1M-token context window. It supports text input.
Gemini 3.1 Flash by Google costs $0.300/Mtok input and $2.50/Mtok output, with a 1M-token context window. It supports text, image, audio, video input.
On a blended cost basis, DeepSeek V4 Pro is 114.6% cheaper than Gemini 3.1 Flash.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.