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DeepSeek V4 Pro vs Gemini 3.1 Pro: price

DeepSeek V4 Pro is 2.3× cheaper than Gemini 3.1 Pro for a typical chat workload (1,500 tokens in, 500 out).

ItemDeepSeek V4 ProGemini 3.1 Pro
Input per 1M tokens$1.32$2.00
Output per 1M tokens$3.96$12.00
Cached input per 1M$0.044$0.20
1,000 chat messages1,500 tokens in, 500 out each$3.96$9.00
Summarize a 50-page PDF30,000 tokens in, 1,000 out$0.044$0.072
One coding-agent task60,000 tokens in, 4,000 out, no caching$0.095$0.168

DeepSeek V4 Pro: Peak-hour price (weekdays 01:00–04:00 and 06:00–10:00 UTC). Off-peak: $0.66 in / $1.98 out.

List prices checked September 28, 2026. Price is half the story: see how people rate each one today.

DeepSeek V4 Pro vs Gemini 3.1 Pro in numbers

Output, usually the bigger part of the bill, costs $3.96 on DeepSeek V4 Pro and $12.00 on Gemini 3.1 Pro, so DeepSeek V4 Pro is 3.0× cheaper there. Input costs $1.32 versus $2.00 per million tokens. For a coding-agent task (60,000 tokens in, 4,000 out) that is $0.095 on DeepSeek V4 Pro and $0.168 on Gemini 3.1 Pro. DeepSeek V4 Pro accepts 1M tokens of context and Gemini 3.1 Pro 1.05M tokens. DeepSeek V4 Pro came out on August 13, 2026 and Gemini 3.1 Pro on February 19, 2026.

DeepSeek V4 Pro is made by DeepSeek; Gemini 3.1 Pro by Google. Estimate your own bill for both in the cost calculator.

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Frequently asked questions

Is DeepSeek V4 Pro or Gemini 3.1 Pro cheaper?

DeepSeek V4 Pro is 2.3× cheaper than Gemini 3.1 Pro for a typical chat workload (1,500 tokens in, 500 out). Output, usually the bigger part of the bill, costs $3.96 on DeepSeek V4 Pro and $12.00 on Gemini 3.1 Pro, so DeepSeek V4 Pro is 3.0× cheaper there.

Which is better, DeepSeek V4 Pro or Gemini 3.1 Pro?

It depends on the task, and price is only part of it. Check how people rate each one today on the DeepSeek V4 Pro and Gemini 3.1 Pro pages, and read what users report in Discussions.