Gemini 3.5 Flash vs DeepSeek V4 Flash
Google's newest Flash model meets DeepSeek's ultra-budget option. DeepSeek V4 Flash costs 91% less on input and 97% less on output — both with 1M context. The cheapest API showdown of 2026.
Pricing data verified: Jun 7, 2026
| Specification | Gemini 3.5 Flash (Google) | DeepSeek V4 Flash (DeepSeek) |
|---|---|---|
| Input Price (per 1M tokens) | $1.50 | $0.14 |
| Output Price (per 1M tokens) | $9.00 | $0.28 |
| Context Window | 1M tokens | 1M tokens |
| Tier | Mid | Budget |
| Provider | DeepSeek |
Calculate Your Exact Costs
Same context window, massive price gap — see how much you can save.
Other Models to Consider
Which Model for Which Use Case?
Cost-Sensitive Chatbots
DeepSeek V4 Flash's 97% cheaper output pricing makes it the clear winner for chatbots where every fraction of a cent counts.
Google Cloud Integration
If you're on Google Cloud Platform, Gemini 3.5 Flash integrates natively with Vertex AI, BigQuery ML, and Cloud Functions — worth the premium if you're already in the ecosystem.
High-Volume Classification
For thousands of daily classification requests, DeepSeek V4 Flash's $0.14/M input crushes Gemini 3.5 Flash's $1.50/M — 91% savings on input alone.
Enterprise Compliance
Google Cloud offers SOC 2, HIPAA BAA, and enterprise SLAs. For regulated industries, Gemini's compliance certifications may be worth the price premium.
Comparing Google and DeepSeek?
APIpulse Pro lets you compare all 39 models, find the cheapest option for your exact usage, and save scenarios for your team.
Frequently Asked Questions
Is DeepSeek V4 Flash cheaper than Gemini 3.5 Flash?
Yes. DeepSeek V4 Flash costs $0.14/M input and $0.28/M output. Gemini 3.5 Flash costs $1.50/M input and $9.00/M output. DeepSeek V4 Flash is 91% cheaper on input and 97% cheaper on output — while both offer 1M context windows.
How much can I save with DeepSeek V4 Flash?
For a typical workload of 1M input + 500K output tokens/month: Gemini 3.5 Flash costs $6.00 vs DeepSeek V4 Flash at $0.28 — saving $5.72/month (95%). At 10M input + 5M output, you save $57.20/month.
When should I choose Gemini 3.5 Flash?
Choose Gemini 3.5 Flash if you need Google Cloud integration, enterprise SLAs and compliance certifications, or prefer a US-based provider. Gemini also has a generous free tier for low-volume use.
Do both models have 1M context windows?
Yes. Both Gemini 3.5 Flash and DeepSeek V4 Flash support 1M token context windows — the same capacity at vastly different price points.