Gemini 3.1 Pro (Preview) vs DeepSeek V4 Pro

Gemini 3.1 Pro (Preview) from Google and DeepSeek V4 Pro from DeepSeek, side by side. Every figure comes from the model registry. No markup on model usage: you pay the provider's list price.

Side-by-side comparison of Gemini 3.1 Pro (Preview), DeepSeek V4 Pro

Attribute	Gemini 3.1 Pro (Preview)	DeepSeek V4 Pro
Provider	Google	DeepSeek
Model id	google/gemini-3.1-pro-preview	deepseek/deepseek-v4-pro
Status	Available via Safeguard	Available via Safeguard
Input / 1M tokens	$2	$1.32
Output / 1M tokens	$12	$3.96
Price notes	Preview model. Prompts <=200K tokens, over 200K: $4 in / $18 out. Output includes thinking tokens. No free tier.	Peak-hour list price (cache miss). Off-peak is half: $0.66 in / $1.98 out. Cache-hit input $0.044 peak. DeepSeek says it is phasing V4 Pro out but continues to serve it.
Context	1.05M	1M
Parameters	Not published	Not published
Max output	65,536 tokens	384,000 tokens
Modality	Text and image	Text
Weights	Closed	Open
Zero data retention	Not offered	Not stated
Prompts go to	Google (Gemini Developer API)	DeepSeek (People's Republic of China)
Retention	Paid tier: prompts and responses not used to improve Google products, but logged for a limited period for abuse monitoring, free tier content may be used to improve products	Privacy policy: personal data stored in the PRC and kept as long as necessary to provide the service, may be used to train models, with a right to opt out. No API-specific retention period or ZDR offering published
Region	No region guarantee, data may be stored transiently or cached in any country where Google operates. Google points ZDR and enterprise processing needs to Vertex AI (Gemini Enterprise Agent Platform)	China (PRC)
Price checked	2026-10-08	2026-10-08

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