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DeepSeek: DeepSeek V4 Flash Vision Exp vs Tencent: Hy4 preview

DeepSeek: DeepSeek V4 Flash Vision Exp is 3.5× cheaper for the sample workload; both have the same context window.

MetricDeepSeek: DeepSeek V4 Flash Vision ExpTencent: Hy4 preview
Model IDdeepseek/deepseek-v4-flash-vision-exptencent/hy4-preview
Prompt price$0.2156 / 1M tokens$0.7506 / 1M tokens
Completion price$0.6468 / 1M tokens$2.2509 / 1M tokens
Context1,048,576 tokens1,048,576 tokens
Tool calling✓✓
Structured outputs✓✓
Reasoning✓✓
Response format✓✓
Web search––
Input modalitiestext, imagetext
Output modalitiestexttext
Added2026-08-212026-08-28

Sample workload

Chat app: 1,000 prompt + 500 completion tokens × 100 requests per day.

CostDeepSeek: DeepSeek V4 Flash Vision ExpTencent: Hy4 preview
Per day$0.0539$0.19
Per 30 days$1.62$5.63

Difference: $0.13 per day and $4.01 per 30 days.

Data updated 2026-11-03