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DeepSeek API Pricing Calculator: How Much You Really Save

June 9, 2026

Let us put real numbers on the table. No marketing fluff — just the math on how much you save switching from GPT-4o to DeepSeek V4 Pro.

The Price Gap (per 1 Million Tokens)

ModelInputOutputAvg/request*
GPT-4o$2.50$10.00$4.00
GPT-4o-mini$0.15$0.60$0.24
Claude 3.5 Sonnet$3.00$15.00$5.40
DeepSeek V4 Pro$0.14$0.28$0.17

* Based on 2000 input + 200 output tokens per request

Monthly Savings at Different Scales

Monthly UsageGPT-4o CostDeepSeek V4 ProYou Save
100K tokens$0.63$0.04$0.59 (93%)
1M tokens$6.25$0.35$5.90 (94%)
10M tokens$62.50$3.50$59.00 (94%)
50M tokens$312.50$17.50$295.00 (94%)
100M tokens$625.00$35.00$590.00 (94%)

Real SaaS Scenarios

Scenario 1: AI Customer Support Bot

  • 10,000 conversations/month
  • Average 500 input + 200 output tokens each
  • Total: 7M tokens/month
  • GPT-4o: $43.75/month
  • DeepSeek V4 Pro: $2.45/month
  • Save $41.30/month

Scenario 2: AI Code Review Tool

  • 5,000 PRs reviewed/month
  • Average 2000 input + 500 output tokens each
  • Total: 12.5M tokens/month
  • GPT-4o: $78.13/month
  • DeepSeek V4 Pro: $4.38/month
  • Save $73.75/month

Scenario 3: Content Generation SaaS

  • 50,000 articles/month
  • Average 1000 input + 1500 output tokens each
  • Total: 125M tokens/month
  • GPT-4o: $781.25/month
  • DeepSeek V4 Pro: $43.75/month
  • Save $737.50/month

Hidden Costs of Sticking with OpenAI

Cost FactorOpenAIDeepSeek V4 Pro
API cost (100M tokens)$625$35
SDK migration effortN/A1 line change
Latency from SEA1-3s0.8-1.5s
Vietnamese/Indonesian qualityGoodExcellent

The Annual Impact

If you are building a mid-size SaaS that does 50M tokens/month:

  • OpenAI GPT-4o: $3,750/year
  • DeepSeek V4 Pro: $210/year
  • Annual saving: $3,540

That is a MacBook Pro. Or a marketing budget. Or 3 months of server costs.

Stop overpaying. Switch today.

nex-api.tech/register — $1 free credit, OpenAI-compatible API.