Compare · updated 2026-11-01

Gemini Flash vs DeepSeek V4 Pro

Gemini Flash is better at quick answers, structured data, long documents, translation; DeepSeek V4 Pro is better at writing, coding, reasoning, maths. DeepSeek V4 Pro is the cheaper of the two on output.

Measured quality by task

TaskGemini FlashDeepSeek V4 ProBetter
Quick answers91/10089/100Gemini Flash
Writing81/10088/100DeepSeek V4 Pro
Coding80/10083/100DeepSeek V4 Pro
Reasoning74/10076/100DeepSeek V4 Pro
Maths85/10087/100DeepSeek V4 Pro
Structured data93/10093/100Gemini Flash
Long documents94/10088/100Gemini Flash
Translation92/10089/100Gemini Flash

Quality is Nivana’s measured score for each kind of task, from weekly pairwise evals judged by models from several labs. Prices are live AI Gateway list prices per million tokens. Updated 2026-11-01. How this is measured.

Price and context

Gemini FlashDeepSeek V4 Pro
LabGoogleDeepSeek
Input per 1M tokens$0.75$0.66
Output per 1M tokens$3.75$1.98
Typical chat answer$0.00375$0.00238
Context window1M1M
Router picks it for1 of 24 request typesFallback only

Which should you use?

Use the one that wins the kind of work you do most, unless the price gap outweighs the quality gap for easy requests. Or don’t choose: Nivana scores both, and the rest of the pool, on every request and sends it to whichever is best for that request.

Questions

Is Gemini Flash better than DeepSeek V4 Pro?

On Nivana’s weekly evals Gemini Flash scores higher on 4 of 8 task types (quick answers, structured data, long documents, translation) and DeepSeek V4 Pro on 4 (writing, coding, reasoning, maths). Neither is better at everything.

Which is better for coding, Gemini Flash or DeepSeek V4 Pro?

DeepSeek V4 Pro: 83/100 against 80/100 for Gemini Flash on Nivana’s coding evals.

Which is better for writing, Gemini Flash or DeepSeek V4 Pro?

DeepSeek V4 Pro: 88/100 against 81/100 for Gemini Flash on Nivana’s writing evals.

Which is cheaper, Gemini Flash or DeepSeek V4 Pro?

DeepSeek V4 Pro: $1.98 per million output tokens against $3.75 for Gemini Flash, about 1.9× less. A typical chat answer costs about $0.0024 on DeepSeek V4 Pro and $0.0037 on Gemini Flash.

Or let the router pick, per request

Nivana sends every message to the model that scores best for it, sets how hard it thinks, and tells you which one answered. 2,000 free credits to start, no card.