Gemini 3.7 Flash vs DeepSeek V4 Flash: API pricing

Google (Gemini API)'s Gemini 3.7 Flash against DeepSeek's DeepSeek V4 Flash on price alone — per-token rates, caching, and context window. Run your own workload through both with the calculator below; capability differences are yours to judge on your evals.

Gemini 3.7 FlashDeepSeek V4 Flash
Input / 1M tokens$0.75$0.44
Cached input / 1M$0.075$0.014
Output / 1M tokens$3.75$1.32
Context window1M1M
Max output64K384K
VendorGoogle (Gemini API)DeepSeek

Prices last synced Aug 20, 2026 from the LiteLLM community price catalog — the same catalog Marginal prices real usage events against, refreshed daily. Spot an error? Tell us.

Price takeaways

  • Input: DeepSeek V4 Flash is 1.7x cheaper.
  • Output: DeepSeek V4 Flash is 2.8x cheaper.
  • Cached input: DeepSeek V4 Flash is 5x cheaper.
  • Ratios shift with workload shape — output-heavy traffic weights the output rate, cache-friendly traffic weights the cached rate. The calculator below does the arithmetic on your numbers.

Your workload on both

Your monthly workload

Cache hit rate = share of input tokens served from the provider's prompt cache, billed at the model's cached-input price. Estimates use standard per-token rates — batch discounts, service tiers, and long-context surcharges are not applied.

Gemini 3.7 FlashDeepSeek V4 Flash
ModelInputCached inputOutputPer requestMonthly
DeepSeek V4 Flashcheapest$264$5.60$330$0.00120$600
Gemini 3.7 Flash$450$30.00$938$0.00283$1,418
Rates used: Gemini 3.7 Flash $0.75 in / $3.75 out · DeepSeek V4 Flash $0.44 in / $1.32 out

Related comparisons

Switching models? Watch the bill move in real time.

Marginal prices every call against that day's rates, so an A/B between these two shows up as dollars per customer and feature — not a surprise at month end.