Compare

Claude Sonnet 4.5 vs DeepSeek V3 Chat

DeepSeek V3 Chat is 96% cheaper overall
Claude Sonnet 4.5
Anthropic
Input/1M$3.0000
Output/1M$15.0000
1K calls$8.40
VS
DeepSeek V3 Chat
DeepSeek
Input/1M$0.2800
Output/1M$0.4200
1K calls$0.39

Monthly Cost Comparison

Usage Level Claude Sonnet 4.5 DeepSeek V3 Chat Savings
Light (100 calls/day) $13.50 $0.67 Save $12.83 with DeepSeek V3 Chat
Medium (1K calls/day) $252.00 $11.76 Save $240.24 with DeepSeek V3 Chat
Heavy (10K calls/day) $3,150.00 $147.00 Save $3,003.00 with DeepSeek V3 Chat
Enterprise (100K/day) $37,800.00 $1,764.00 Save $36,036.00 with DeepSeek V3 Chat

Cost Ratio (10K calls/month)

Claude Sonnet 4.5 $84.00
DeepSeek V3 Chat $3.92

Frequently Asked Questions

Is Claude Sonnet 4.5 or DeepSeek V3 Chat cheaper?

DeepSeek V3 Chat is 96% cheaper overall. Claude Sonnet 4.5 costs $3/M input vs DeepSeek V3 Chat at $0.28/M input.

How much does 10,000 API calls cost with Claude Sonnet 4.5 vs DeepSeek V3 Chat?

At 800 input + 400 output tokens per call: Claude Sonnet 4.5 costs $84.00 and DeepSeek V3 Chat costs $3.92.

Can I switch between Claude Sonnet 4.5 and DeepSeek V3 Chat easily?

With a proxy like Tokonomics, switching is a one-line config change. Route different features to different models and track costs per model automatically.

Track costs for both models in one dashboard

Tokonomics monitors Claude Sonnet 4.5, DeepSeek V3 Chat, and 60+ other models. Set budget alerts per model, per feature, per team.

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