Gemini 2.5 Flash vs DeepSeek V3: token pricing & cost compared (July 2026)

How Gemini 2.5 Flash (Google) and DeepSeek V3 (DeepSeek) actually compare on price — input, output, and total monthly cost at the MAU you care about. Updated against live OpenRouter pricing.

Google

Gemini 2.5 Flash

Input: $0.30 / 1M tokens
Output: $2.50 / 1M tokens
Output / Input ratio: 8.3×
Context window: 1,048.576K

DeepSeek

DeepSeek V3

Input: $0.20 / 1M tokens
Output: $0.80 / 1M tokens
Output / Input ratio: 4.0×
Context window: 131.072K

The short answer

DeepSeek V3 is cheaper across the board for typical workloads.

Token pricing side-by-side

Gemini 2.5 Flash
DeepSeek V3

Cost at your usage

Avg input tokens / call

Avg output tokens / call

Calls per active user / day: 5

Active days / month: 20

MAU: 1,000

Gemini 2.5 Flash

Per call

$0.00140

Per user / mo

$0.1400

Total / mo

$140

DeepSeek V3

Per call

$0.00050

Per user / mo

$0.0500

Total / mo

$50

DeepSeek V3 is cheaper by $0.0900/user/month — a saving of $90/month at 1,000 MAU.

Total monthly bill across MAU

Gemini 2.5 Flash
DeepSeek V3

Same usage profile applied to both models; only the per-token price differs.

Run this against your real numbers

The mini-calculator above is a preview. Use the full tools to model power-user blast radius, gross margin, and 12-month spend forecasts.

Other comparisons

GPT-4o mini vs Gemini 2.5 Flash Claude 3.5 Haiku vs Gemini 2.5 Flash Claude Haiku 4.5 vs Gemini 2.5 Flash Claude 3.5 Haiku vs DeepSeek V3 DeepSeek R1 vs DeepSeek V3 Llama 4 Scout vs Gemini 2.5 Flash

Comparing Gemini 2.5 Flash vs DeepSeek V3 on price alone never tells the whole story — output-token weighting, context length, and your usage profile change the answer dramatically. Use the calculators below for the full picture.